Read the docs
TI-2026-60215 Aliases CVE-2026-88807GHSA-52cp-fjgx-xr28

libXrender RenderQueryPictFormats Reply Heap-based Buffer Overflow

Priority MEDIUM 40CWE-122Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Active
Attack complexity
High
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 3 fixed, 2 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-122 and the CVSS impact.

Summary

A heap overflow in libXrender before 0.9.13 in RenderQueryPictFormats could be used by malicious X servers to inject code into attached X clients.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00263 18th percentileScored 2026-11-07
Fix Partial libXrender (X.org): 0.9.13Red Hat: 3 advisoriesRed Hat: 3 fixed, 2 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
x.orglibXrenderbefore 0.9.130.9.13Patch availableCNA
  • libXrender Vendorx.org Affected before 0.9.13 Fixed in 0.9.13 Patch available CNA

Remediation

  • Fix · CNA libXrender (X.org) Fixed in 0.9.13

Red Hat 3 advisories

  • RHSA-2026:91057 Released 2026-10-29 · Red Hat rating Important
    libXrender security update
    • Red Hat Enterprise Linux AppStream (v. 9) libXrender-0.9.10-16.el9_8.2, libXrender-devel-0.9.10-16.el9_8.2
  • RHSA-2026:91267 Released 2026-10-27 · Red Hat rating Important
    libXrender security update
    • Red Hat Enterprise Linux AppStream (v. 8) libXrender-0.9.10-8.el8_10, libXrender-devel-0.9.10-8.el8_10
  • RHSA-2026:91003 Released 2026-10-27 · Red Hat rating Important
    libXrender security update
    • Red Hat Enterprise Linux AppStream (v. 10) libXrender-0.9.11-8.el10_2.1, libXrender-devel-0.9.11-8.el10_2.1

Vendor assessments

Red Hat

Red Hat rating: Important. 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
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:91003
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2026:91267
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:91057
Not affected: 1 product
  • Red Hat Hardened Images

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-88807
  2. 2026-10-03 Alias added: GHSA-52cp-fjgx-xr28
  3. 2026-10-27 Fix available: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux AppStream (v. 8) · Red Hat
  4. 2026-10-29 Fix available: RHSA-2026:91003 · Red Hat
  5. 2026-10-29 Fix available: RHSA-2026:91267 · Red Hat
  6. 2026-10-30 Fix available: RHSA-2026:91057 · Red Hat
  7. 2026-10-30 Fix available: Red Hat Enterprise Linux AppStream (v. 9) · Red Hat

References

Patch 1

  • TI-2022-25238 In X.Org X server 20.11 through 21.1.16, when a client application uses easystroke for… CVSS 3.1HIGH 7.7
  • TI-1999-00519 An X server's access control is disabled (e.g. CVSS 2.0HIGH 10.0
  • TI-2021-11657 LookupCol.c in X.Org X through X11R7.7 and libX11 before 1.7.1 might allow remote… CVSS 3.1CRITICAL 9.8
  • TI-2018-10465 An issue was discovered in libX11 through 1.6.5. CVSS 3.0CRITICAL 9.8
  • TI-2004-00826 Multiple vulnerabilities in libXpm for 6.8.1 and earlier, as used in XFree86 and other… CVSS 2.0HIGH 10.0
  • TI-2016-08240 Multiple integer overflows in libXpm before 3.5.12, when a program requests parsing XPM… CVSS 3.0CRITICAL 9.8
See all 206 →

Sources

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