Medium [CVE-2026-87062] GitHub Actions referenced by mutable tag/branch instead of commit SHA
This medium-severity Red Hat Linux advisory covers CVE-2026-87062.
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Summary
A flaw was found in konflux-operator-tasks. GitHub Actions within this component are configured to use mutable tags or branches instead of specific, immutable commit SHAs.
This vulnerability could allow a remote attacker to introduce malicious code into the build process if they compromise the referenced mutable tag or branch. Such a compromise could lead to unauthorized code execution or integrity issues within the affected system.
Moderate impact. Red Hat severity: Moderate — CVSS 4.2 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N).
Weakness: CWE-829.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation checklist
- To mitigate this issue, Konflux users should ensure that all GitHub Actions referenced within `konflux-operator-tasks` are pinned to their full 40-character commit SHAs. This practice prevents unauthorized code execution by ensuring the exact version of the action is used. Additionally, consider enabling automated tools such as Renovate with `helpers:pinGitHubActionDigests` to maintain these commit SHA pins. Changes to CI/CD configurations will take effect upon the next pipeline run.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
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