Deserialization of Untrusted Data Affecting gitlab-runner-fips-19.0 package, versions <19.0.1-r1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.33% (25th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-GITLABRUNNERFIPS190-17180824
  • published5 Jun 2026
  • disclosed22 May 2026

Introduced: 22 May 2026

NewCVE-2026-39832  (opens in a new tab)
CWE-502  (opens in a new tab)

How to fix?

Upgrade Minimos:latest gitlab-runner-fips-19.0 to version 19.0.1-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gitlab-runner-fips-19.0 package and not the gitlab-runner-fips-19.0 package as distributed by Minimos. See How to fix? for Minimos:latest 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.