CVE-2026-35172 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-35172HIGH

Distribution has stale blob access resurrection via repo-scoped redis descriptor cache invalidation

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  H  N  N    7.5   .0046   37.9     —

AFFECTED
  Product       Versions   Fixed
  distribution  < 3.1.0 –  —

TIMELINE
  Apr 1   Reserved by GitHub_M
  Apr 6   Published (CNA: GitHub_M)
  Aug 17  EXPLOIT PUBLISHED — CVE-2026-35172 (distribution). Public exploit reference added.

CWE-284 · CNA: GitHub_M · CVSS v3.1 · 10 references · NVD status: Modified

Description

Distribution is a toolkit to pack, ship, store, and deliver container content. Prior to 3.1.0, distribution can restore read access in repo a after an explicit delete when storage.cache.blobdescriptor: redis and storage.delete.enabled: true are both enabled. The delete path clears the shared digest descriptor but leaves stale repo-scoped membership behind, so a later Stat or Get from repo b repopulates the shared descriptor and makes the deleted blob readable from repo a again. This vulnerability is fixed in 3.1.0.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
April 1, 2026	Reserved	Reserved by GitHub_M
April 6, 2026	Published	Published (CNA: GitHub_M)
August 17, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-35172 (distribution). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
distribution	distribution	—	< 3.1.0	—

Weaknesses

CWE-284

References (10)

https://access.redhat.com/errata/RHSA-2026:23234 [vendor-advisory, x_refsource_REDHAT]
https://access.redhat.com/errata/RHSA-2026:25045 [vendor-advisory, x_refsource_REDHAT]
https://access.redhat.com/errata/RHSA-2026:26529 [vendor-advisory, x_refsource_REDHAT]
https://access.redhat.com/errata/RHSA-2026:26543 [vendor-advisory, x_refsource_REDHAT]
https://access.redhat.com/errata/RHSA-2026:28893 [vendor-advisory, x_refsource_REDHAT]
https://access.redhat.com/errata/RHSA-2026:37387 [vendor-advisory, x_refsource_REDHAT]
https://access.redhat.com/security/cve/CVE-2026-35172 [vdb-entry, x_refsource_REDHAT]
https://bugzilla.redhat.com/show_bug.cgi?id=2455571 [issue-tracking, x_refsource_REDHAT]
https://github.com/distribution/distribution/security/advisories/GHSA-f2g3-hh2r-cwgc [x_refsource_CONFIRM]
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35172.json [x_sadp-csaf-vex]

Authoritative record: CVE-2026-35172 at cve.org

Vendors: distribution

Weaknesses: CWE-284

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-35172 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.