https://seclists.org/oss-sec/2026/q3/276: CVE-2026-53910: GNU diffutils bug, and some thoughts on "security" ports
Published Jul 25, 2026
·Updated
Affected Software
1 affected component
GNU diffutils
Frequently Asked Questions
1
What is the severity of CVE-2026-53910?
CVE-2026-53910 has a medium severity rating due to the potential for out-of-bounds writes.
2
How do I fix CVE-2026-53910?
To fix CVE-2026-53910, update GNU diffutils to the latest version that contains the relevant patch.
3
What does CVE-2026-53910 affect?
CVE-2026-53910 affects the GNU diffutils software, specifically the diff3 program when using a controllable diff program.
4
Who is impacted by CVE-2026-53910?
Users of GNU diffutils who allow external input to control the diff program are at risk from CVE-2026-53910.
5
Can CVE-2026-53910 be exploited remotely?
CVE-2026-53910 requires local access to exploit, thus making remote exploitation highly unlikely.