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CVE record · CVE-2026-90036

NFSD: Prevent client use-after-free during blocked-lock reaping

CVSS 9.8 CriticalCriticalEPSS 0.0048 · 42nd percentile

Critical, because:

  • CVSS score 9.8: 9.0 or more.

How we decide what’s critical

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:33 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 7919d0a27f1e7cb324e023776aa1cbff00f1ee7b to before 0d53a47c913d0bce3b5ec35c28cbcca4d015f33d git
  • affected 7919d0a27f1e7cb324e023776aa1cbff00f1ee7b to before 7081224a59a0ca4edcd62c068588f4d900199a18 git
  • affected 7919d0a27f1e7cb324e023776aa1cbff00f1ee7b to before cd489b03587378645fe0d20142a33f1ed60bac98 git
  • affected 7919d0a27f1e7cb324e023776aa1cbff00f1ee7b to before 6fedb2eaff77554ca7a0deffd2e8bc0d6e8b38b0 git
  • affected 7919d0a27f1e7cb324e023776aa1cbff00f1ee7b to before 9026932ac8be4d0ae01db47f23619a98cc57b671 git
Other versions: unaffected
Linux Linux
  • affected 4.9
  • unaffected before 4.9 semver
  • unaffected 6.6.160 to 6.6.*, inclusive semver
  • unaffected 6.12.111 to 6.12.*, inclusive semver
  • unaffected 6.18.51 to 6.18.*, inclusive semver
  • unaffected 7.2.5 to 7.2.*, inclusive semver
  • unaffected 7.3 to *, inclusive original_commit_for_fix
Other versions: affected
Identifiers
CVE-2026-90036
CNA
Linux
Tags
Published
16 Sept 2026
Updated
21 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
9.8 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CNA (Linux)
  • CISA KEV Not listed.
  • EPSS 0.0048, the 42nd 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 16 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.