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TI-2026-60390 Aliases CVE-2026-89156GHSA-p3mm-8g7f-gg7r

Out-of-bounds read in PCRE2

Priority LOW 26CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 9 fixed, 7 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.

Summary

PCRE2 before 10.48 has a pcre2_match out-of-bounds read after a JIT fallback when an attacker can provide invalid UTF data.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00294 22nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial PCRE2 (PCRE): 10.48Red Hat: 5 advisoriesRed Hat: 9 fixed, 7 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
PCREPCRE210.34 to before 10.4810.48Patch availableCNA
  • PCRE2 VendorPCRE Affected 10.34 to before 10.48 Fixed in 10.48 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:pcre:pcre2:*:*:*:*:*:*:*:*before 10.48VulnerablePCRE
cpe:2.3:a:pcre:pcre2:10.48:rc1:*:*:*:*:*:*10.48 rc1VulnerablePCRE
  • cpe:2.3:a:pcre:pcre2:*:*:*:*:*:*:*:* Versions before 10.48 Vulnerable ·PCRE
  • cpe:2.3:a:pcre:pcre2:10.48:rc1:*:*:*:*:*:* Versions 10.48 rc1 Vulnerable ·PCRE

Remediation

  • Fix · CNA PCRE2 (PCRE) Fixed in 10.48

Red Hat 5 advisories

  • RHSA-2026:87400 Released 2026-10-21 · Red Hat rating Important
    Red Hat Cost Management On-Premise container image update
    • Red Hat Cost Management On-Premise 1 registry.redhat.io/costmanagement/costmanagement-ui-rhel10
  • 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-2026:81532 Released 2026-10-12 · Red Hat rating Important
    pcre2 security update
    • Red Hat Enterprise Linux AppStream (v. 9) pcre2-devel-10.40-7.el9_8, pcre2-utf16-10.40-7.el9_8, pcre2-utf32-10.40-7.el9_8
    • Red Hat Enterprise Linux BaseOS (v. 9) pcre2-10.40-7.el9_8, pcre2-syntax-10.40-7.el9_8
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) pcre2-tools-10.40-7.el9_8
Show 2 more Red Hat advisories
  • RHSA-2026:81522 Released 2026-10-12 · Red Hat rating Important
    pcre2 security update
    • Red Hat Enterprise Linux AppStream (v. 10) pcre2-devel-10.44-1.5.el10_2, pcre2-utf16-10.44-1.5.el10_2, pcre2-utf32-10.44-1.5.el10_2
    • Red Hat Enterprise Linux BaseOS (v. 10) pcre2-10.44-1.5.el10_2, pcre2-syntax-10.44-1.5.el10_2
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) pcre2-static-10.44-1.5.el10_2, pcre2-tools-10.44-1.5.el10_2
  • RHSA-2026:67534 Released 2026-09-15 · Red Hat rating Important
    Red Hat Hardened Images RPMs Security Update
    • Red Hat Hardened Images pcre2-10.48-0.1.hum1@aarch64, pcre2-10.48-0.1.hum1@src, pcre2-10.48-0.1.hum1@x86_64 +12

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    PCRE PCRE2 10.48

    6 records Highest priority Priority HIGH 1 HIGH, 1 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2026-60391 Integer overflow in PCRE2Priority HIGH 66
    • TI-2026-60393 Out-of-bounds read in PCRE2Priority MEDIUM 62
    • TI-2026-60394 In PCRE2 before 10.48, pcre2_jit_match mishandles a previously copied subject being…Priority LOW 35
    Show all 6 records →

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 7AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 8AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 9AffectedNo fix yet: Fix deferred
Red Hat OpenShift AI (RHOAI)Affected—
Red Hat OpenShift Container Platform 4AffectedNo fix yet: Fix deferred
Red Hat OpenShift Container Platform 5AffectedNo fix yet: Fix deferred
Red Hat Cost Management On-Premise 1Fixed RHSA-2026:87400
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:81522
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:81532
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2026:81522
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2026:81532
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2026:81522
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2026:81532
Red Hat Hardened ImagesFixed RHSA-2026:67534
Red Hat Update Infrastructure 5Fixed RHSA-2026:82939
Not affected: 3 products
  • Red Hat Enterprise Linux 8
  • Red Hat Hardened Images
  • Red Hat OpenShift AI (RHOAI)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-89156
  2. 2026-10-03 Alias added: GHSA-p3mm-8g7f-gg7r
  3. 2026-10-13 Fix available: RHSA-2026:81522 · Red Hat
  4. 2026-10-13 Fix available: RHSA-2026:81532 · Red Hat
  5. 2026-10-13 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
  6. 2026-10-16 Fix available: RHSA-2026:82939 · Red Hat
  7. 2026-10-16 Fix available: Red Hat Update Infrastructure 5 · Red Hat
  8. 2026-10-22 Fix available: RHSA-2026:87400 · Red Hat
  9. 2026-10-23 Fix available: Red Hat Cost Management On-Premise 1 · Red Hat
  10. 2026-10-30 Affected versions changed · Red Hat
  11. 2026-11-07 Affected versions changed · Red Hat

References

Exploit 1

Other 1

  • TI-2022-19872 Integer overflow vulnerability in pcre2test before 10.41 allows attackers to cause a… CVSS 3.1HIGH 7.5
  • TI-2025-35893 PCRE2: heap-buffer-overflow read in match_ref due to missing boundary restoration in SCS CVSS 4.0MEDIUM 6.9
  • TI-2026-60391 Integer overflow in PCRE2 CVSS 3.1HIGH 7.4
  • TI-2026-60393 Out-of-bounds read in PCRE2 CVSS 3.1MEDIUM 6.5
  • TI-2015-02839 Heap-based buffer overflow in PCRE 8.34 through 8.37 and PCRE2 10.10 allows remote… CVSS 3.1CRITICAL 9.8
  • TI-2016-02677 The compile_branch function in pcre_compile.c in PCRE 8.x before 8.39 and pcre2_compile.c… CVSS 3.0CRITICAL 9.8
See all 16 →

Sources

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