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CVE record · CVE-2026-98636

squashfs: Add dictionary size range check to prevent shift-out-of-bounds

No CVSS scoreEPSS 0.0018 · 7th percentile

Published by the CVE Program (CNA: Linux) at 18 Oct 2026, 15:20 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 ff750311d30acc9564ef577050794953eee59f01 to before b02948a23455f8190a53887b2d2c13ae1d360cea git
  • affected ff750311d30acc9564ef577050794953eee59f01 to before 9d9c5c218ea356a1d88765214ad2919605280ab1 git
  • affected ff750311d30acc9564ef577050794953eee59f01 to before 7a1c293e7aa17f1afaee0684e0e931fe23a5a6b1 git
  • affected ff750311d30acc9564ef577050794953eee59f01 to before c68e0068a236f9a7dfc19720bdf11e5d80a85089 git
  • affected ff750311d30acc9564ef577050794953eee59f01 to before 88c673a0bd233df44ca0020da82f4fd3876de27a git
  • affected ff750311d30acc9564ef577050794953eee59f01 to before 0cb85377daaefb4ce5ce72975f2deb27ee0e0cad git
  • affected ff750311d30acc9564ef577050794953eee59f01 to before e1ca4e3a380ef3e8f46ce006f1146392e3f32c98 git
  • affected ff750311d30acc9564ef577050794953eee59f01 to before 1f7745fb3580152ca902ef181b605f33cabfb1d0 git
Other versions: unaffected
Linux Linux
  • affected 2.6.39
  • unaffected before 2.6.39 semver
  • unaffected 5.10.271 to 5.10.*, inclusive 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 6.12.112 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-2026-98636
CNA
Linux
Tags
Published
18 Oct 2026
Updated
19 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

No source has published a CVSS score for this record yet.

  • CISA KEV Not listed.
  • EPSS 0.0018, the 7th percentile, on 7 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.