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CVE record · CVE-2026-89657

libceph: validate OSD extent maps before cursor advance

CVSS 7.5 HighEPSS 0.0061 · 49th percentile

Published by the CVE Program (CNA: Linux) at 11 Sept 2026, 19:45 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 f628d799972799023d32c2542bb2639eb8c4f84e to before 94ae5145c520618802b0a24c047dcd5f05835db8 git
  • affected f628d799972799023d32c2542bb2639eb8c4f84e to before 058ffa81f9440c5b4714685611cf697fd3739ec9 git
  • affected f628d799972799023d32c2542bb2639eb8c4f84e to before 2571b35883268a266554e80d368e67fdfea7fb9d git
  • affected f628d799972799023d32c2542bb2639eb8c4f84e to before 201db408872ca12cf09e36bf0f560138c3dcfa1c git
  • affected f628d799972799023d32c2542bb2639eb8c4f84e to before 9ec08b7499a62c6d4afa93d36ab47a43fcad57d1 git
Other versions: unaffected
Linux Linux
  • affected 6.6
  • unaffected before 6.6 semver
  • unaffected 6.6.157 to 6.6.*, inclusive semver
  • unaffected 6.12.109 to 6.12.*, inclusive semver
  • unaffected 6.18.50 to 6.18.*, inclusive semver
  • unaffected 7.2.4 to 7.2.*, inclusive semver
  • unaffected 7.3 to *, inclusive original_commit_for_fix
Other versions: affected
Identifiers
CVE-2026-89657
CNA
Linux
Tags
Published
11 Sept 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

ScoreRatingCVSSVectorSource
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CNA (Linux)
  • CISA KEV Not listed.
  • EPSS 0.0061, the 49th percentile, on 14 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 11 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.