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Fencer Vulns
high 7.5

CVE-2026-35172 json

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

published 2026-04-06 7 mo ago modified 2026-09-10 1 mo ago also BIT-distribution-2026-35172 , EUVD-2026-19446 , GHSA-f2g3-hh2r-cwgc , GO-2026-4942

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

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.

Patch / fix

  • go github.com/distribution/distribution/v3 3.1.0
  • bitnami distribution 3.1.0
  • Red Hat Red Hat OpenShift Container Platform 4.12 1781122773
  • Red Hat Red Hat OpenShift Container Platform 4.13 1781123052
  • Red Hat Red Hat OpenShift Container Platform 4.14 1781833795
  • Red Hat Red Hat OpenShift Container Platform 4.15 1779915499
  • Red Hat Red Hat OpenShift Container Platform 4.16 1780957268
  • Red Hat Red Hat Openshift Data Foundation 4.22 1782931768, 1782932104, 1782932114, 1782932521, 1782932812, 1782932919, 1782932969, 1782933015, 1782933042, 1782933235, 1782933251, 1783018421, 1783018461, 1783535989, 1783536000, 1783536515, 1783537001, 1783537392, 1783537586, 1783537955
  • docker-registry Debian 14 2.8.3+ds1-3

debian advisories DEBIAN-CVE-2026-35172

  • distribution SLES for SAP 15 SP6, SLES for SAP 15 SP5, SLES for SAP 15 SP4 +8 more 3.1.1-150400.9.41.1
  • govulncheck-vulndb SLES for SAP applications 16.0, SLES 16.0 0.0.20260827T195228-160000.1.1

suse advisories SUSE-SU-2026:4212-1SUSE-SU-2026:23625-1

  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260827T195228-160000.1.1
  • distribution openSUSE Tumbleweed 3.1.0-1.1

opensuse advisories openSUSE-SU-2026:21761-1openSUSE-SU-2026:10631-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-35172 updated cvss 7.5

github.com/distribution/distribution: Distribution: Information disclosure via stale references after content deletion

  • Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/cluster-logging-rhel9-operator
    affected: no fix planned “Will not fix”
  • Red Hat Multicluster Engine for Kubernetes multicluster-engine/assisted-service-9-rhel9, multicluster-engine/assisted-installer-controller-rhel9 Red Hat OpenShift Container Platform 4 openshift4/ose-operator-registry, openshift3/ose-operator-lifecycle-manager, openshift4/ose-operator-framework-tools-rhel9
    affected: no fix available
  • Red Hat OpenShift Container Platform 4 openshift-clients, openshift-clients-redistributable
    under investigation
  • Red Hat OpenShift Container Platform 4.12 openshift4/ose-operator-lifecycle-manager 1781122773
    fixed: vendor fix RHSA-2026:26529
  • Red Hat OpenShift Container Platform 4.13 openshift4/ose-operator-lifecycle-manager 1781123052
    fixed: vendor fix RHSA-2026:26543
  • Red Hat OpenShift Container Platform 4.14 openshift4/ose-operator-lifecycle-manager 1781833795
    fixed: vendor fix RHSA-2026:28893
  • Red Hat OpenShift Container Platform 4.15 openshift4/ose-operator-lifecycle-manager-rhel9 1779915499
    fixed: vendor fix RHSA-2026:23234
  • Red Hat OpenShift Container Platform 4.16 openshift4/ose-operator-lifecycle-manager-rhel9 1780957268
    fixed: vendor fix RHSA-2026:25045
show 4 more
  • Red Hat Openshift Data Foundation 4.22 odf4/cephcsi-rhel9 1782932114, odf4/odf-cli-rhel9 1783537001, odf4/mcg-core-rhel9 1783536000, odf4/odf-drbd-rhel9 1783537392, odf4/odf-console-rhel9 1783537586, odf4/devicefinder-rhel9 1782932104, +21 more
    fixed: vendor fix RHSA-2026:37387
  • Red Hat Multicluster Engine for Kubernetes multicluster-engine/must-gather-rhel9
    not affected: vulnerable code not present
  • Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/acm-must-gather-rhel9 Red Hat OpenShift Container Platform 4 openshift4/ose-cli-rhel9, openshift4/ose-tools-rhel9, redhat/redhat-operator-index
    not affected: vulnerable code not in execute path
  • Red Hat OpenShift Container Platform 4.12 openshift4/ose-cli 1781149352, openshift4/ose-etcd 1781121954, openshift4/ose-tests 1781435937, openshift4/ose-console 1781122122, openshift4/ose-coredns 1781122760, openshift4/ose-deployer 1781150090, +179 more Red Hat OpenShift Container Platform 4.13 openshift4/ose-cli 1781123265, openshift4/ose-pod 1781123214, openshift4/ose-tests 1781149385, openshift4/ose-console 1781178198, openshift4/ose-coredns 1781123476, openshift4/ose-deployer 1781124358, +184 more Red Hat OpenShift Container Platform 4.14 openshift4/ose-cli 1781822479, openshift4/ose-pod 1781829374, openshift4/ose-tests 1782189317, openshift4/ose-console 1782157414, openshift4/ose-coredns 1781822636, openshift4/ose-deployer 1781830664, +191 more Red Hat OpenShift Container Platform 4.15 openshift4/ose-cli 1780060291, openshift4/ose-tests 1780459378, openshift4/ose-console 1780082271, openshift4/ose-deployer 1780061375, openshift4/ose-installer 1780060797, openshift4/ose-pod-rhel9 1779917579, +186 more Red Hat OpenShift Container Platform 4.16 openshift4/ose-cli-rhel9 1780428340, openshift4/ose-pod-rhel9 1780965588, openshift4/ose-sdn-rhel9 1780957869, openshift4/ose-etcd-rhel9 1780955050, openshift4/ose-tests-rhel9 1780967969, openshift4/ose-tools-rhel9 1780959715, +184 more Red Hat Openshift Data Foundation 4.22 odf4/mcg-operator-bundle 1783538986, odf4/ocs-operator-bundle 1783539176, odf4/odf-operator-bundle 1783539513, odf4/cephcsi-operator-bundle 1783538908, odf4/odr-hub-operator-bundle 1783539596, odf4/rook-ceph-operator-bundle 1783539714, +10 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
7 mo ago

Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/distribution/distribution/security/advisories/GHSA-f2g3-hh2r-cwgc referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
go github.com/distribution/distribution/v3
<3.1.0
3.1.0
go github.com/distribution/distribution
<=2.8.3
all versions
 no fix listed
bitnami distribution
<3.1.0
3.1.0

Affected products

  • distribution distribution
  • Red Hat Red Hat OpenShift Container Platform 4.12
  • Red Hat Red Hat OpenShift Container Platform 4.13
  • Red Hat Red Hat OpenShift Container Platform 4.14
  • Red Hat Red Hat OpenShift Container Platform 4.15
  • Red Hat Red Hat OpenShift Container Platform 4.16
  • Red Hat Red Hat Openshift Data Foundation 4.22
  • Red Hat Multicluster Engine for Kubernetes
  • Red Hat Red Hat Advanced Cluster Management for Kubernetes 2
  • Red Hat Red Hat OpenShift Container Platform 4

Classification

Weakness
  • CWE-284 Improper Access Control
  • CWE-524 Use of Cache Containing Sensitive Information

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.