5.6 Medium

CVE-2026-113957 An attacker who controls the registry, a mirror, or the network path to it may be able to serve arbitrary image…

Description

An attacker who controls the registry, a mirror, or the network path to it may be able to serve arbitrary image content in response to a pull by digest, so that a user runs an image other than the one they pinned. The fix compares the returned digest to the pinned digest and fails the pull on a mismatch. Tag pulls are exempt, because a tag is mutable by design. The fix also verifies the hash of manifests and blobs when they are fetched. This vulnerability is addressed in container version 1.6.0 and containerization version 0.52.1.

CVSS 3.1 detail

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Exploitable remotely over the network, without an account and without any user action; the impact on data or service is limited.

Attack vector: Network
Attack complexity: High
Privileges required: None
Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: Low
Availability: Low

Affected products and versions

Product	Affected versions	Fixed in
Container 1.6	earliest → < 1.6.0	1.6.0
Containerization 0.52	earliest → < 0.52.1	0.52.1

References

github.com github.com

Timeline

Published October 29, 2026
Last modified November 4, 2026

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