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CVE record · CVE-2026-98490

net: openvswitch: conntrack: fix helper UAF due to extensions realloc

CVSS 9.8 CriticalCriticalEPSS 0.0069 · 53rd 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 18 Oct 2026, 15:16 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 cae3a2627520c3795b54533c5328b77af3405dbe to before f53d13a286fb275bda0efdf445b8a1e4dfcb717b git
  • affected cae3a2627520c3795b54533c5328b77af3405dbe to before 84d47a83b7b717576de0defab46b8823a22853b0 git
  • affected cae3a2627520c3795b54533c5328b77af3405dbe to before 9f308197395c1a524b736e401cbc8a2ed7d246c9 git
  • affected cae3a2627520c3795b54533c5328b77af3405dbe to before 18866dc1f525f9ee4de7709529d1ae1af8d8e8be git
  • affected cae3a2627520c3795b54533c5328b77af3405dbe to before afcf362625190c5260530b1d6c7daa98831f6b83 git
  • affected cae3a2627520c3795b54533c5328b77af3405dbe to before 5f23080a625dd7855ab91485c8d691a54a1979f0 git
  • affected cae3a2627520c3795b54533c5328b77af3405dbe to before e02a83bb0b7a203f6a22f55ad5f426765560f811 git
  • affected cae3a2627520c3795b54533c5328b77af3405dbe to before 1a4151e6be57b098b7a5ebfbde58585e83200cdc git
Other versions: unaffected
Linux Linux
  • affected 4.3
  • unaffected before 4.3 semver
  • unaffected 5.10.273 to 5.10.*, inclusive semver
  • unaffected 5.15.224 to 5.15.*, inclusive semver
  • unaffected 6.1.191 to 6.1.*, inclusive semver
  • unaffected 6.6.160 to 6.6.*, inclusive semver
  • unaffected 6.12.112 to 6.12.*, inclusive semver
  • unaffected 6.18.55 to 6.18.*, inclusive semver
  • unaffected 7.2.9 to 7.2.*, inclusive semver
  • unaffected 7.3 to *, inclusive original_commit_for_fix
Other versions: affected
Identifiers
CVE-2026-98490
CNA
Linux
Tags
Published
18 Oct 2026
Updated
30 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 0.0069, the 53rd percentile, on 8 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 18 Oct 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.