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CVE record · CVE-2026-93813

btrfs: tree-checker: validate INODE_REF's namelen

CVSS 7.8 HighEPSS 0.0013 · 2nd percentile

Published by the CVE Program (CNA: Linux) at 24 Sept 2026, 16:02 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Linux Linux
  • affected 2ede0daf01549cecf4bb0962c46dc47382047523 to before 60078a3e25c09d9d8fba828b0d81bb33e449a1b2 git
  • affected 2ede0daf01549cecf4bb0962c46dc47382047523 to before 509d6a4d889e425f305461d8323a7b39ca6c121c git
  • affected 2ede0daf01549cecf4bb0962c46dc47382047523 to before 4cb41f07685f88ec724a375883bb0c731db8f6eb git
  • affected 2ede0daf01549cecf4bb0962c46dc47382047523 to before eeddee090b834a7d4b6a8214d2e3739e64c7a338 git
  • affected 2ede0daf01549cecf4bb0962c46dc47382047523 to before 8f75c19892263bc0555fba922aefe103e841e86d git
  • affected 2ede0daf01549cecf4bb0962c46dc47382047523 to before 3dc22abc21f5892406c09202fa2627196cc96967 git
Other versions: unaffected
Linux Linux
  • affected 2.6.37
  • unaffected before 2.6.37 semver
  • unaffected 5.15.222 to 5.15.*, inclusive semver
  • unaffected 6.1.189 to 6.1.*, inclusive semver
  • unaffected 6.6.158 to 6.6.*, inclusive semver
  • unaffected 6.12.111 to 6.12.*, inclusive semver
  • unaffected 6.18.53 to 6.18.*, inclusive semver
  • unaffected 7.2 to *, inclusive original_commit_for_fix
Other versions: affected
Identifiers
CVE-2026-93813
CNA
Linux
Tags
Published
24 Sept 2026
Updated
3 Oct 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.8 High 3.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CNA (Linux)
  • CISA KEV Not listed.
  • EPSS 0.0013, the 2nd percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 24 Sept 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.