CVE-2026-35172

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 v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/distribution/distribution/security/advisories/GHSA-f2g3-hh2r-cwgc	Exploit Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:23234
https://access.redhat.com/errata/RHSA-2026:25045
https://access.redhat.com/errata/RHSA-2026:26529
https://access.redhat.com/errata/RHSA-2026:26543
https://access.redhat.com/errata/RHSA-2026:28893
https://access.redhat.com/errata/RHSA-2026:37387
https://access.redhat.com/security/cve/CVE-2026-35172
https://bugzilla.redhat.com/show_bug.cgi?id=2455571
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35172.json

Configurations

Configuration 1 (hide)

cpe:2.3:a:distribution:distribution:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-04-06 20:16

Updated : 2026-09-09 13:19

NVD link : CVE-2026-35172

Mitre link : CVE-2026-35172

CVE.ORG link : CVE-2026-35172

JSON object : View

Products Affected

distribution

distribution

CWE

CWE-284

Improper Access Control

NVD-CWE-noinfo CWE-524

Use of Cache Containing Sensitive Information

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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."}, {"lang": "es", "value": "Distribuci\u00f3n es un conjunto de herramientas para empaquetar, enviar, almacenar y entregar contenido de contenedores. Antes de la 3.1.0, distribuci\u00f3n puede restaurar el acceso de lectura en el repositorio a despu\u00e9s de una eliminaci\u00f3n expl\u00edcita cuando storage.cache.blobdescriptor: redis y storage.delete.enabled: true est\u00e1n ambos habilitados. La ruta de eliminaci\u00f3n borra el descriptor de resumen compartido, pero deja una membres\u00eda obsoleta con alcance de repositorio, por lo que un Stat o Get posterior desde el repositorio b vuelve a poblar el descriptor compartido y hace que el blob eliminado sea legible desde el repositorio a de nuevo. Esta vulnerabilidad est\u00e1 corregida en la 3.1.0."}], "lastModified": "2026-09-09T13:19:39.007", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:distribution:distribution:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B0361B73-DBB7-4E06-9F20-D9EE6C841671", "versionEndExcluding": "3.1.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}