Read the docs
TI-2026-05587 Aliases CVE-2026-6368GHSA-cm6j-gmqf-j2cm

wordexp with WRDE_APPEND can return or use invalid memory

Priority LOW 10CWE-908Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
Present
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Partial Red Hat: 12 fixed, 4 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat.

Summary

Calling wordexp with WRDE_APPEND in the GNU C Library version 2.0 to version 2.43 can cause the interface to return invalid memory in the we_wordv member, which on subsequent calls to wordfree may abort the process.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00107 1st percentileScored 2026-11-07
Fix Partial glibc (glibc): 2.43Red Hat: 6 advisoriesRed Hat: 12 fixed, 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
glibcglibc1.93-260 to before 2.432.43Patch availableCNA
  • glibc Vendorglibc Affected 1.93-260 to before 2.43 Fixed in 2.43 Patch available CNA

Remediation

  • Fix · CNA glibc (glibc) Fixed in 2.43

Red Hat 6 advisories

  • RHSA-2026:95264 Released 2026-11-04 · Red Hat rating Critical
    Cost Management Metrics Operator Update
    • Cost Management 4 registry.redhat.io/costmanagement/costmanagement-metrics-rhel9-operator
  • RHSA-2026:82939 Released 2026-10-14 · Red Hat rating Important
    Red Hat Update Infrastructure 5.3 security update
    • Red Hat Update Infrastructure 5 registry.redhat.io/rhui5/cds-kubernetes-rhel9, registry.redhat.io/rhui5/cds-rhel9, registry.redhat.io/rhui5/haproxy-rhel9 +2
  • RHSA-2026:79281 Released 2026-10-08 · Red Hat rating Moderate
    glibc security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 9) glibc-devel-2.34-283.el9_8, glibc-doc-2.34-283.el9_8, glibc-headers-2.34-283.el9_8 +2
    • Red Hat Enterprise Linux BaseOS (v. 9) glibc-2.34-283.el9_8, glibc-all-langpacks-2.34-283.el9_8, glibc-common-2.34-283.el9_8 +47
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) glibc-benchtests-2.34-283.el9_8, glibc-nss-devel-2.34-283.el9_8, glibc-static-2.34-283.el9_8 +2
Show 3 more Red Hat advisories
  • RHSA-2026:76781 Released 2026-10-08 · Red Hat rating Moderate
    glibc security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 10) glibc-devel-2.39-142.el10_2, glibc-doc-2.39-142.el10_2, glibc-locale-source-2.39-142.el10_2 +1
    • Red Hat Enterprise Linux BaseOS (v. 10) glibc-2.39-142.el10_2, glibc-all-langpacks-2.39-142.el10_2, glibc-common-2.39-142.el10_2 +47
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) glibc-benchtests-2.39-142.el10_2, glibc-nss-devel-2.39-142.el10_2, glibc-static-2.39-142.el10_2 +2
  • RHSA-2026:76777 Released 2026-10-07 · Red Hat rating Moderate
    glibc security update
    • Red Hat Enterprise Linux AppStream (v. 8) compat-libpthread-nonshared-2.28-251.el8_10.43, glibc-utils-2.28-251.el8_10.43
    • Red Hat Enterprise Linux BaseOS (v. 8) glibc-2.28-251.el8_10.43, glibc-all-langpacks-2.28-251.el8_10.43, glibc-common-2.28-251.el8_10.43 +47
    • Red Hat Enterprise Linux CRB (v. 8) glibc-benchtests-2.28-251.el8_10.43, glibc-nss-devel-2.28-251.el8_10.43, glibc-static-2.28-251.el8_10.43 +1
  • RHSA-2026:53069 Released 2026-08-10 · Red Hat rating Moderate
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images compat-libpthread-nonshared-2.43-8.1.hum1@aarch64, compat-libpthread-nonshared-2.43-8.1.hum1@x86_64, glibc-2.43-8.1.hum1@aarch64 +47

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix yet: Fix deferred
Red Hat OpenShift Container Platform 4AffectedNo fix yet: Fix deferred
Red Hat OpenShift Container Platform 5AffectedNo fix yet: Fix deferred
Cost Management 4Fixed RHSA-2026:95264
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:76781
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2026:76777
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:79281
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2026:76781
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2026:76777
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2026:79281
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2026:76777
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2026:76781
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2026:79281
Red Hat Hardened ImagesFixed RHSA-2026:53069
Red Hat Update Infrastructure 5Fixed RHSA-2026:82939
Not affected: 3 products
  • Cost Management 4
  • Red Hat Hardened Images
  • Red Hat OpenShift AI (RHOAI)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-6368
  2. 2026-10-03 Alias added: GHSA-cm6j-gmqf-j2cm
  3. 2026-10-07 Fix available: RHSA-2026:76777 · Red Hat
  4. 2026-10-07 Fix available: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux BaseOS (v. 8), Red Hat Enterprise Linux CRB (v. 8) · Red Hat
  5. 2026-10-09 Fix available: RHSA-2026:76781 · Red Hat
  6. 2026-10-09 Fix available: RHSA-2026:79281 · Red Hat
  7. 2026-10-09 Fix available: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 10) +3 · Red Hat
  8. 2026-10-16 Fix available: RHSA-2026:82939 · Red Hat
  9. 2026-10-16 Fix available: Red Hat Update Infrastructure 5 · Red Hat
  10. 2026-10-30 Affected versions changed · Red Hat
  11. 2026-11-06 Fix available: Cost Management 4 · Red Hat
  12. 2026-11-06 Fix available: RHSA-2026:95264 · Red Hat
  13. 2026-11-06 Affected versions changed · Red Hat

References

Advisory 1

Other 1

Sources

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