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.
Affected products
distribution: distribution
References10
- github.com/distribution/distribution/security/advisories/GHSA-f… ExploitVendor Advisory
- access.redhat.com/errata/RHSA-2026:23234
- access.redhat.com/errata/RHSA-2026:25045
- access.redhat.com/errata/RHSA-2026:26529
- access.redhat.com/errata/RHSA-2026:26543
- access.redhat.com/errata/RHSA-2026:28893
- access.redhat.com/errata/RHSA-2026:37387
- access.redhat.com/security/cve/CVE-2026-35172
- bugzilla.redhat.com/show_bug.cgi?id=2455571
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35172…
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - EPSS — exploit probability
- 0% percentile: 41 · as of 12 November 2026
- CWE
- CWE-284CWE-524
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