Read the docs
TI-2026-31508 Aliases CVE-2026-43329GHSA-45q4-4828-537r

netfilter: flowtable: strictly check for maximum number of actions

Priority LOW 35CWE-122Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 49 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-122 and the CVSS impact.

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: strictly check for maximum number of actions The maximum number of flowtable hardware offload actions in IPv6 is: * ethernet mangling (4 payload actions, 2 for each ethernet address) * SNAT (4 payload actions) * DNAT (4 payload actions) * Double VLAN (4 vlan actions, 2 for popping vlan, and 2 for pushing) for QinQ. * Redirect (1 action) Which makes 17, while the maximum is 16. But act_ct supports for tunnels actions too. Note that payload action operates at 32-bit word level, so mangling an IPv6 address takes 4 payload actions. Update flow_action_entry_next() calls to check for the maximum number of supported actions. While at it, rise the maximum number of actions per flow from 16 to 24 so this works fine with IPv6 setups.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00178 7th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.15.203, 6.1.168, 6.6.134 +4Red Hat: 30 advisoriesRed Hat: 49 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux5.5 and later5.15.203, 6.1.168, 6.6.134, 6.12.81, 6.18.22, 6.19.12, 7.0Patch availableCNA
  • Linux VendorLinux Affected 5.5 and later Fixed in 5.15.203, 6.1.168, 6.6.134, 6.12.81, 6.18.22, 6.19.12, 7.0 Patch available CNA

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*5.5 to before 5.15.203; 5.16 to before 6.1.168; 6.2 to before 6.6.134; 6.7 to before 6.12.81; 6.13 to before 6.18.22; 6.19 to before 6.19.12VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*7.0 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*7.0 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*7.0 rc3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*7.0 rc4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*7.0 rc5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*7.0 rc6VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.5 to before 5.15.203; 5.16 to before 6.1.168; 6.2 to before 6.6.134; 6.7 to before 6.12.81; 6.13 to before 6.18.22; 6.19 to before 6.19.12 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:* Versions 7.0 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:* Versions 7.0 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:* Versions 7.0 rc3 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:* Versions 7.0 rc4 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:* Versions 7.0 rc5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:* Versions 7.0 rc6 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 5.15.203, 6.1.168, 6.6.134, 6.12.81, 6.18.22, 6.19.12, 7.0

Red Hat 30 advisories

  • RHSA-2026:56853 Released 2026-08-31 · Red Hat rating Important
    OpenShift Container Platform 4.16.69 bug fix and security update
    • Red Hat OpenShift Container Platform 4.16 rhcos-aarch64-416.94.202608150307-0, rhcos-ppc64le-416.94.202608150307-0, rhcos-s390x-416.94.202608150307-0 +1
  • RHSA-2026:56911 Released 2026-08-31 · Red Hat rating Important
    OpenShift Container Platform 4.15.68 bug fix and security update
    • Red Hat OpenShift Container Platform 4.15 rhcos-aarch64-415.92.202608180329-0, rhcos-ppc64le-415.92.202608180329-0, rhcos-s390x-415.92.202608180329-0 +1
  • RHSA-2026:54187 Released 2026-08-20 · Red Hat rating Important
    OpenShift Container Platform 4.13.70 bug fix and security update
    • Red Hat OpenShift Container Platform 4.13 rhcos-x86_64-413.92.202608111330-0
Show 27 more Red Hat advisories
  • RHSA-2026:55761 Released 2026-08-19 · Red Hat rating Important
    kpatch-patch-4_18_0-477_107_1, kpatch-patch-4_18_0-477_120_1, kpatch-patch-4_18_0-477_130_1, kpatch-patch-4_18_0-477_143_1, and kpatch-patch-4_18_0-477_97_1 security update
    • Red Hat Enterprise Linux BaseOS E4S (v.8.8) kpatch-patch-4_18_0-477_107_1-1-12.el8_8, kpatch-patch-4_18_0-477_120_1-1-11.el8_8, kpatch-patch-4_18_0-477_130_1-1-9.el8_8 +2
  • RHSA-2026:56225 Released 2026-08-18 · Red Hat rating Important
    kpatch-patch-5_14_0-570_116_1, kpatch-patch-5_14_0-570_17_1, kpatch-patch-5_14_0-570_39_1, kpatch-patch-5_14_0-570_66_1, and kpatch-patch-5_14_0-570_94_1 security update
    • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kpatch-patch-5_14_0-570_116_1-1-7.el9_6, kpatch-patch-5_14_0-570_17_1-1-22.el9_6, kpatch-patch-5_14_0-570_39_1-1-13.el9_6 +2
  • RHSA-2026:56224 Released 2026-08-18 · Red Hat rating Important
    kpatch-patch-5_14_0-427_100_1, kpatch-patch-5_14_0-427_113_1, kpatch-patch-5_14_0-427_126_1, kpatch-patch-5_14_0-427_68_2, and kpatch-patch-5_14_0-427_84_1 security update
    • Red Hat Enterprise Linux BaseOS E4S (v.9.4) kpatch-patch-5_14_0-427_100_1-1-12.el9_4, kpatch-patch-5_14_0-427_113_1-1-10.el9_4, kpatch-patch-5_14_0-427_126_1-1-7.el9_4 +2
  • RHSA-2026:55837 Released 2026-08-17 · Red Hat rating Important
    kpatch-patch-5_14_0-284_117_1, kpatch-patch-5_14_0-284_134_1, kpatch-patch-5_14_0-284_148_1, kpatch-patch-5_14_0-284_158_1, and kpatch-patch-5_14_0-284_172_1 security update
    • Red Hat Enterprise Linux BaseOS E4S (v.9.2) kpatch-patch-5_14_0-284_117_1-1-19.el9_2, kpatch-patch-5_14_0-284_134_1-1-13.el9_2, kpatch-patch-5_14_0-284_148_1-1-11.el9_2 +2
  • RHSA-2026:55763 Released 2026-08-17 · Red Hat rating Important
    kpatch-patch-5_14_0-687_10_1 security update
    • Red Hat Enterprise Linux BaseOS (v. 9) kpatch-patch-5_14_0-687_10_1-1-6.el9_8
  • RHSA-2026:55762 Released 2026-08-17 · Red Hat rating Important
    kpatch-patch-4_18_0-553_109_1, kpatch-patch-4_18_0-553_125_1, kpatch-patch-4_18_0-553_53_1, kpatch-patch-4_18_0-553_72_1, and kpatch-patch-4_18_0-553_85_1 security update
    • Red Hat Enterprise Linux BaseOS (v. 8) kpatch-patch-4_18_0-553_109_1-1-9.el8_10, kpatch-patch-4_18_0-553_125_1-1-6.el8_10, kpatch-patch-4_18_0-553_53_1-1-16.el8_10 +2
  • RHSA-2026:55618 Released 2026-08-17 · Red Hat rating Important
    kpatch-patch-6_12_0-211_16_1 security update
    • Red Hat Enterprise Linux BaseOS (v. 10) kpatch-patch-6_12_0-211_16_1-1-6.el10_2
  • RHSA-2026:47727 Released 2026-08-06 · Red Hat rating Important
    OpenShift Container Platform 4.17.56 bug fix and security update
    • Red Hat OpenShift Container Platform 4.17 rhcos-aarch64-417.94.202607240132-0, rhcos-ppc64le-417.94.202607240132-0, rhcos-s390x-417.94.202607240132-0 +1
  • RHSA-2026:47702 Released 2026-08-06 · Red Hat rating Important
    OpenShift Container Platform 4.12.95 bug fix and security update
    • Red Hat OpenShift Container Platform 4.12 rhcos-x86_64-412.86.202607211933-0
  • RHSA-2026:43252 Released 2026-07-31 · Red Hat rating Important
    OpenShift Container Platform 4.14.70 bug fix and security update
    • Red Hat OpenShift Container Platform 4.14 rhcos-aarch64-414.92.202607210313-0, rhcos-ppc64le-414.92.202607210313-0, rhcos-s390x-414.92.202607210313-0 +1
  • RHSA-2026:44230 Released 2026-07-29 · Red Hat rating Important
    OpenShift Container Platform 4.18.50 bug fix and security update
    • Red Hat OpenShift Container Platform 4.18 rhcos-aarch64-418.94.202607211754-0, rhcos-ppc64le-418.94.202607211754-0, rhcos-s390x-418.94.202607211754-0 +1
  • RHSA-2026:44231 Released 2026-07-29 · Red Hat rating Important
    OpenShift Container Platform 4.19.40 bug fix and security update
    • Red Hat OpenShift Container Platform 4.19 rhcos-aarch64-4.19.9.6.202607220857-0, rhcos-ppc64le-4.19.9.6.202607220857-0, rhcos-s390x-4.19.9.6.202607220857-0 +1
  • RHSA-2026:44262 Released 2026-07-28 · Red Hat rating Important
    OpenShift Container Platform 4.21.26 bug fix and security update
    • Red Hat OpenShift Container Platform 4.21 rhcos-aarch64-4.21.9.6.202607221317-0, rhcos-ppc64le-4.21.9.6.202607221317-0, rhcos-s390x-4.21.9.6.202607221317-0 +1
  • RHSA-2026:44259 Released 2026-07-28 · Red Hat rating Important
    OpenShift Container Platform 4.20.31 bug fix and security update
    • Red Hat OpenShift Container Platform 4.20 rhcos-aarch64-4.20.9.6.202607221038-0, rhcos-ppc64le-4.20.9.6.202607221038-0, rhcos-s390x-4.20.9.6.202607221038-0 +1
  • RHSA-2026:40764 Released 2026-07-21 · Red Hat rating Important
    OpenShift Container Platform 4.22.6 bug fix and security update
    • Red Hat OpenShift Container Platform 4.22 rhcos-aarch64-4.22.9.8.202607152026-0, rhcos-ppc64le-4.22.9.8.202607152026-0, rhcos-s390x-4.22.9.8.202607152026-0 +1
  • RHSA-2026:35896 Released 2026-07-06 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.4) bpftool-4.18.0-305.197.1.el8_4, kernel-4.18.0-305.197.1.el8_4, kernel-abi-stablelists-4.18.0-305.197.1.el8_4 +14
    • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) bpftool-4.18.0-305.197.1.el8_4, kernel-4.18.0-305.197.1.el8_4, kernel-abi-stablelists-4.18.0-305.197.1.el8_4 +14
  • RHSA-2026:35863 Released 2026-07-06 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux BaseOS E4S (v.8.8) bpftool-4.18.0-477.150.1.el8_8, kernel-4.18.0-477.150.1.el8_8, kernel-abi-stablelists-4.18.0-477.150.1.el8_8 +14
    • Red Hat Enterprise Linux BaseOS TUS (v.8.8) bpftool-4.18.0-477.150.1.el8_8, kernel-4.18.0-477.150.1.el8_8, kernel-abi-stablelists-4.18.0-477.150.1.el8_8 +14
  • RHSA-2026:34094 Released 2026-07-01 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder EUS (v.9.6) kernel-tools-libs-devel-5.14.0-570.125.1.el9_6, libperf-5.14.0-570.125.1.el9_6
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) kernel-64k-debug-devel-5.14.0-570.125.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.125.1.el9_6, kernel-64k-devel-5.14.0-570.125.1.el9_6 +12
    • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel-5.14.0-570.125.1.el9_6, kernel-64k-5.14.0-570.125.1.el9_6, kernel-64k-core-5.14.0-570.125.1.el9_6 +28
    • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt-5.14.0-570.125.1.el9_6, kernel-rt-64k-5.14.0-570.125.1.el9_6, kernel-rt-64k-core-5.14.0-570.125.1.el9_6 +21
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt-5.14.0-570.125.1.el9_6, kernel-rt-core-5.14.0-570.125.1.el9_6, kernel-rt-debug-5.14.0-570.125.1.el9_6 +11
  • RHSA-2026:34095 Released 2026-07-01 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) kernel-64k-debug-devel-5.14.0-284.178.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.178.1.el9_2, kernel-64k-devel-5.14.0-284.178.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool-7.0.0-284.178.1.el9_2, kernel-5.14.0-284.178.1.el9_2, kernel-64k-5.14.0-284.178.1.el9_2 +29
  • RHSA-2026:33899 Released 2026-07-01 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.6) bpftool-4.18.0-372.198.1.el8_6, kernel-4.18.0-372.198.1.el8_6, kernel-abi-stablelists-4.18.0-372.198.1.el8_6 +14
    • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) bpftool-4.18.0-372.198.1.el8_6, kernel-4.18.0-372.198.1.el8_6, kernel-abi-stablelists-4.18.0-372.198.1.el8_6 +14
  • RHSA-2026:33900 Released 2026-07-01 · Red Hat rating Important
    kernel-rt security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt-5.14.0-284.178.1.rt14.463.el9_2, kernel-rt-core-5.14.0-284.178.1.rt14.463.el9_2, kernel-rt-debug-5.14.0-284.178.1.rt14.463.el9_2 +9
    • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt-5.14.0-284.178.1.rt14.463.el9_2, kernel-rt-core-5.14.0-284.178.1.rt14.463.el9_2, kernel-rt-debug-5.14.0-284.178.1.rt14.463.el9_2 +11
  • RHSA-2026:33215 Released 2026-06-29 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) kernel-64k-debug-devel-6.12.0-55.84.1.el10_0, kernel-64k-debug-devel-matched-6.12.0-55.84.1.el10_0, kernel-64k-devel-6.12.0-55.84.1.el10_0 +12
    • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel-6.12.0-55.84.1.el10_0, kernel-64k-6.12.0-55.84.1.el10_0, kernel-64k-core-6.12.0-55.84.1.el10_0 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) kernel-tools-libs-devel-6.12.0-55.84.1.el10_0, libperf-6.12.0-55.84.1.el10_0
    • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt-6.12.0-55.84.1.el10_0, kernel-rt-64k-6.12.0-55.84.1.el10_0, kernel-rt-64k-core-6.12.0-55.84.1.el10_0 +21
    • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt-6.12.0-55.84.1.el10_0, kernel-rt-core-6.12.0-55.84.1.el10_0, kernel-rt-debug-6.12.0-55.84.1.el10_0 +11
  • RHSA-2026:30848 Released 2026-06-29 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-687.19.1.el9_8, kernel-64k-debug-devel-matched-5.14.0-687.19.1.el9_8, kernel-64k-devel-5.14.0-687.19.1.el9_8 +12
    • Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-687.19.1.el9_8, kernel-64k-5.14.0-687.19.1.el9_8, kernel-64k-core-5.14.0-687.19.1.el9_8 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-687.19.1.el9_8, libperf-5.14.0-687.19.1.el9_8
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-687.19.1.el9_8, kernel-rt-64k-5.14.0-687.19.1.el9_8, kernel-rt-64k-core-5.14.0-687.19.1.el9_8 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-687.19.1.el9_8, kernel-rt-core-5.14.0-687.19.1.el9_8, kernel-rt-debug-5.14.0-687.19.1.el9_8 +9
  • RHSA-2026:27713 Released 2026-06-22 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream E4S (v.9.4) kernel-64k-debug-devel-5.14.0-427.134.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.134.1.el9_4, kernel-64k-devel-5.14.0-427.134.1.el9_4 +11
    • Red Hat Enterprise Linux BaseOS E4S (v.9.4) bpftool-7.3.0-427.134.1.el9_4, kernel-5.14.0-427.134.1.el9_4, kernel-64k-5.14.0-427.134.1.el9_4 +29
    • Red Hat Enterprise Linux Real Time E4S (v.9.4) kernel-rt-5.14.0-427.134.1.el9_4, kernel-rt-core-5.14.0-427.134.1.el9_4, kernel-rt-debug-5.14.0-427.134.1.el9_4 +9
    • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) kernel-rt-5.14.0-427.134.1.el9_4, kernel-rt-core-5.14.0-427.134.1.el9_4, kernel-rt-debug-5.14.0-427.134.1.el9_4 +11
  • RHSA-2026:26427 Released 2026-06-16 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.134.1.el8_10, kernel-4.18.0-553.134.1.el8_10, kernel-abi-stablelists-4.18.0-553.134.1.el8_10 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.134.1.el8_10
  • RHSA-2026:26428 Released 2026-06-16 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.134.1.rt7.475.el8_10, kernel-rt-core-4.18.0-553.134.1.rt7.475.el8_10, kernel-rt-debug-4.18.0-553.134.1.rt7.475.el8_10 +9
    • Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.134.1.rt7.475.el8_10, kernel-rt-core-4.18.0-553.134.1.rt7.475.el8_10, kernel-rt-debug-4.18.0-553.134.1.rt7.475.el8_10 +7
  • RHSA-2026:23329 Released 2026-06-04 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-211.20.1.el10_2, kernel-64k-debug-devel-matched-6.12.0-211.20.1.el10_2, kernel-64k-devel-6.12.0-211.20.1.el10_2 +12
    • Red Hat Enterprise Linux BaseOS (v. 10) kernel-6.12.0-211.20.1.el10_2, kernel-64k-6.12.0-211.20.1.el10_2, kernel-64k-core-6.12.0-211.20.1.el10_2 +29
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-211.20.1.el10_2, libperf-6.12.0-211.20.1.el10_2
    • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt-6.12.0-211.20.1.el10_2, kernel-rt-64k-6.12.0-211.20.1.el10_2, kernel-rt-64k-core-6.12.0-211.20.1.el10_2 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-211.20.1.el10_2, kernel-rt-core-6.12.0-211.20.1.el10_2, kernel-rt-debug-6.12.0-211.20.1.el10_2 +9

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat CodeReady Linux Builder EUS (v.9.6)Fixed RHSA-2026:34094
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:23329
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:30848
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2026:34095
Red Hat Enterprise Linux AppStream E4S (v.9.4)Fixed RHSA-2026:27713
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:33215
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:34094
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2026:23329, RHSA-2026:55618
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2026:26427, RHSA-2026:55762
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2026:30848, RHSA-2026:55763
Red Hat Enterprise Linux BaseOS AUS (v.8.4)Fixed RHSA-2026:35896
Red Hat Enterprise Linux BaseOS AUS (v.8.6)Fixed RHSA-2026:33899
Red Hat Enterprise Linux BaseOS E4S (v.8.8)Fixed RHSA-2026:35863, RHSA-2026:55761
Red Hat Enterprise Linux BaseOS E4S (v.9.2)Fixed RHSA-2026:34095, RHSA-2026:55837
Red Hat Enterprise Linux BaseOS E4S (v.9.4)Fixed RHSA-2026:27713, RHSA-2026:56224
Red Hat Enterprise Linux BaseOS EUS (v. 10.0)Fixed RHSA-2026:33215
Red Hat Enterprise Linux BaseOS EUS (v.9.6)Fixed RHSA-2026:34094, RHSA-2026:56225
Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)Fixed RHSA-2026:35896
Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)Fixed RHSA-2026:33899
Red Hat Enterprise Linux BaseOS TUS (v.8.8)Fixed RHSA-2026:35863
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2026:26427
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2026:23329
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2026:30848
Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)Fixed RHSA-2026:33215
Red Hat Enterprise Linux NFV (v. 8)Fixed RHSA-2026:26428
Red Hat Enterprise Linux RT (v. 8)Fixed RHSA-2026:26428
Red Hat Enterprise Linux Real Time (v. 10)Fixed RHSA-2026:23329
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2026:30848
Red Hat Enterprise Linux Real Time E4S (v.9.2)Fixed RHSA-2026:33900
Red Hat Enterprise Linux Real Time E4S (v.9.4)Fixed RHSA-2026:27713
Red Hat Enterprise Linux Real Time EUS (v. 10.0)Fixed RHSA-2026:33215
Red Hat Enterprise Linux Real Time EUS (v.9.6)Fixed RHSA-2026:34094
Red Hat Enterprise Linux Real Time for NFV (v. 10)Fixed RHSA-2026:23329
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2026:30848
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)Fixed RHSA-2026:33900
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4)Fixed RHSA-2026:27713
Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0)Fixed RHSA-2026:33215
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6)Fixed RHSA-2026:34094
Red Hat OpenShift Container Platform 4.12Fixed RHSA-2026:47702
Red Hat OpenShift Container Platform 4.13Fixed RHSA-2026:54187
Red Hat OpenShift Container Platform 4.14Fixed RHSA-2026:43252
Red Hat OpenShift Container Platform 4.15Fixed RHSA-2026:56911
Red Hat OpenShift Container Platform 4.16Fixed RHSA-2026:56853
Red Hat OpenShift Container Platform 4.17Fixed RHSA-2026:47727
Red Hat OpenShift Container Platform 4.18Fixed RHSA-2026:44230
Red Hat OpenShift Container Platform 4.19Fixed RHSA-2026:44231
Red Hat OpenShift Container Platform 4.20Fixed RHSA-2026:44259
Red Hat OpenShift Container Platform 4.21Fixed RHSA-2026:44262
Red Hat OpenShift Container Platform 4.22Fixed RHSA-2026:40764
Not affected: 3 products
  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-43329
  2. 2026-10-03 Alias added: GHSA-45q4-4828-537r
  3. 2026-10-09 Affected versions changed · Red Hat
  4. 2026-10-16 CISA SSVC decision points changed
  5. 2026-10-19 Weakness changed · CISA ADP

References

Patch 7

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences