Link Following Affecting dex-k8s-authenticator package, versions <1.4.0-r29


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.15% (4th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-DEXK8SAUTHENTICATOR-16630743
  • published11 May 2026
  • disclosed7 May 2026

Introduced: 7 May 2026

CVE-2026-39819  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

Upgrade Chainguard dex-k8s-authenticator to version 1.4.0-r29 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dex-k8s-authenticator package and not the dex-k8s-authenticator package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

The "go bug" command writes to two files with predictable names in the system temporary directory (for example, "/tmp"). An attacker with access to the temporary directory can create a symlink in one of these names, causing "go bug" to overwrite the target of the symlink.

CVSS Base Scores

version 3.1