Vulnerability details
CVE-2026-35172
Red Hat Multicluster Engine for KubernetesRed Hat OpenShift Container Platform 4distribution distribution
Distribution has stale blob access resurrection via repo-scoped redis descriptor cache invalidation
CVSS 3.1
7.5High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.5High | 3.1 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| 7.5High | 3.1 | CVEProject cvelistV5 (CNA) (redhat-SADP) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Red Hat | Multicluster Engine for Kubernetes | All | CVEProject cvelistV5 (CNA) |
| Red Hat | Multicluster Engine for Kubernetes | All | CVEProject cvelistV5 (CNA) |
| Red Hat | Red Hat OpenShift Container Platform 4 | All | CVEProject cvelistV5 (CNA) |
| Red Hat | Red Hat OpenShift Container Platform 4 | All | CVEProject cvelistV5 (CNA) |
| distribution | distribution | < 3.1.0 | CVEProject cvelistV5 (CNA) |
References and advisories
10- https://github.com/distribution/distribution/security/advisories/GHSA-f2g3-hh2r-cwgc x_refsource_CONFIRM
- https://access.redhat.com/security/cve/CVE-2026-35172 vdb-entryx_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2455571 issue-trackingx_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35172.json x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:26529 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:26543 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:28893 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:23234 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:25045 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:37387 vendor-advisoryx_refsource_REDHAT
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Details
- Published
- 2026-04-06
- Last updated
- 2026-09-09
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.47%
Probability of exploitation in 30 days
41.1%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Proof of concept
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-284Improper Access Control
- CWE-524Use of Cache Containing Sensitive Information