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CVE-2026-26740
NixOS vulnerability analysis and mitigation

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size.

Wiz Threat Research note: This vulnerability's CVSS vector has been overridden to Integrity NONE by the Wiz Research team, as it's a Denial-of-Service vulnerability and does not allow code execution.


SourceNVD

Related NixOS vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-30892HIGH7.8
  • NixOSNixOS
  • crun
NoYesMar 26, 2026
CVE-2026-33223MEDIUM5.4
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NoYesMar 25, 2026
CVE-2026-33222MEDIUM4.9
  • NixOSNixOS
  • rke2-runtime-fips-1.35
NoYesMar 25, 2026
CVE-2026-33249MEDIUM4.3
  • NixOSNixOS
  • telegraf-1.37
NoYesMar 25, 2026
CVE-2026-33248MEDIUM4.2
  • NixOSNixOS
  • rke2-runtime-1.34
NoYesMar 25, 2026

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