7.5

CVE-2026-35172: Distribution has stale blob access resurrection via repo-scoped redis descriptor cache invalidation

Modified
AliasesUBUNTU-CVE-2026-35172DEBIAN-CVE-2026-35172CGA-225r-xpj9-q3hh
Published 06-04-2026Last modified 09-09-2026

Vulnerability summary

CVE-2026-35172 is a high (CVSS 7.5) Improper Access Control vulnerability in distribution. EPSS estimates a 0.47% chance of exploitation in the next 30 days, higher than 40.9% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Prioritisepublic exploit

Public exploit (GitHub, Date unknown)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.47%
0%100%
Low · -0.20 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 4 · Related 5
OPENSUSE-SU-2026:10631-1OPENSUSE-SU-2026:21761-1SUSE-SU-2026:23625-1SUSE-SU-2026:4212-1CGA-5R6M-HCWC-JVHP

Timeline

  1. 06-04-2026
    PublishedVulnerability first disclosed.
  2. 09-09-2026
    Last modifiedVulnerability information updated.

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 metrics

7 scores · 7 sources · 1 version

EPSS trend

Probability

0.47%

Chance of exploitation in the next 30 days

Percentile

41%

Versus all other CVEs

30-day change

Decrease -0.20 pp

From 0.67% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • githubUnverified

    Distribution

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard65 products
  • argocd-image-updater< 1.3.0-r0
  • argocd-image-updater-fips< 1.3.0-r0
  • envoy-gateway-egctl< 1.7.1-r3
  • envoy-gateway-fips-egctl< 1.7.1-r3
  • gitlab-rails-ce-18.1All versions (No fix recorded)
Wolfi10 products
  • argocd-image-updater< 1.3.0-r0
  • envoy-gateway-egctl< 1.7.1-r3
  • gitness< 3.3.0-r12
  • harbor-2.14All versions (No fix recorded)
  • harbor-2.14-exporterAll versions (No fix recorded)
Debian1 product
  • docker-registryAll versions (No fix recorded) | < 2.8.3+ds1-3
Distribution1 product
Github.com/distribution1 product
  • distribution≤ 2.8.3 | All versions (No fix recorded)
Github.com/distribution/distribution1 product
  • v3< 3.1.0
Ubuntu1 product
  • docker-registryAll versions (No fix recorded)

7 vendors · 80 products

References

18 links
Show all 18 references