Deserialization of Untrusted Data Affecting podman-fips package, versions <5.8.2-r3
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-CHAINGUARDLATEST-PODMANFIPS-16965384
- published28 May 2026
- disclosed22 May 2026
Introduced: 22 May 2026
NewCVE-2026-39832 (opens in a new tab)How to fix?
Upgrade Chainguard podman-fips to version 5.8.2-r3 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream podman-fips package and not the podman-fips package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
When adding a key to a remote agent constraint extensions such as restrict-destination-v00@openssh.com were not serialized in the request. Destination restrictions were silently stripped when forwarding keys, allowing unrestricted use of the key on the remote host. The client now serializes all constraint extensions. Additionally, the in-memory keyring returned by NewKeyring() now rejects keys with unsupported constraint extensions instead of silently ignoring them.