CVE-2026-35172
Distribution has stale blob access resurrection via repo-scoped redis descriptor cache invalidation
- State
- Published
- Severity
- 7.5 High
- Published
- Apr 6, 2026
- Updated
- Sep 9, 2026
- Reserved
- Apr 1, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | GitHub_M |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | redhat-SADP |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
distributiondistribution |
|
References
- https://github.com/distribution/distribution/security/advisories/GHSA-f2g3-hh2r-cwgc
- https://access.redhat.com/security/cve/CVE-2026-35172vdb-entry
- RHBZ#2455571issue-tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35172.json
- https://access.redhat.com/errata/RHSA-2026:26529vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:26543vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:28893vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:23234vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:25045vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:37387vendor-advisory
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