CVE-2026-95818

Publication date 22 September 2026

Last updated 14 November 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

3.6 · Low

Score breakdown

Description

A stack-based buffer overflow in the dynamic loader (ld.so) of the GNU C Library (glibc) versions 2.14 through 2.44 allows a local attacker to crash or corrupt the memory of setuid/setgid (AT_SECURE) programs. When such a program's DT_RPATH or DT_RUNPATH begins with $ORIGIN and is followed by NUL or '/' the loader both reads past the end of the path buffer and writes past the end of a stack-allocated internal buffer. The corrupted loader stack can lead to a loader crash (denial of service) and limited disclosure of process memory.

Read the notes from the security team

Status

Package Ubuntu Release Status
glibc 26.10 stonking
Not affected
26.04 LTS resolute
Fixed in 2.43-2ubuntu2.7
24.04 LTS noble
Fixed in 2.39-0ubuntu8.12
22.04 LTS jammy
Fixed in 2.35-0ubuntu3.18
20.04 LTS focal
Needs evaluation
18.04 LTS bionic
Needs evaluation
16.04 LTS xenial
Needs evaluation
eglibc 26.10 stonking Not in release
26.04 LTS resolute Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
14.04 LTS trusty
Needs evaluation

Notes

mdeslaur

same commit as CVE-2026-86805

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
glibc

Severity score breakdown

CVSS version: CVSS v3.0

Base score 3.6 · Low

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

References

Related Ubuntu Security Notices (USN)

    • USN-9065-1
    • GNU C Library vulnerabilities
    • 12 November 2026

Other references

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