Vulnerability details

CVE-2025-31479

Canonical get-workflow-version-action

canonical/get-workflow-version-action can leak a partial GITHUB_TOKEN in exception output

CVSS 3.1
8.2High

Official description

canonical/get-workflow-version-action is a GitHub composite action to get commit SHA that GitHub Actions reusable workflow was called with. Prior to 1.0.1, if the get-workflow-version-action step fails, the exception output may include the GITHUB_TOKEN. If the full token is included in the exception output, GitHub will automatically redact the secret from the GitHub Actions logs. However, the token may be truncated—causing part of the GITHUB_TOKEN to be displayed in plaintext in the GitHub Actions logs. Anyone with read access to the GitHub repository can view GitHub Actions logs. For public repositories, anyone can view the GitHub Actions logs. The opportunity to exploit this vulnerability is limited—the GITHUB_TOKEN is automatically revoked when the job completes. However, there is an opportunity for an attack in the time between the GITHUB_TOKEN being displayed in the logs and the completion of the job. Users using the github-token input are impacted. This vulnerability is fixed in 1.0.1.

CVSS scores

ScoreVersionSourceVector
8.2High 3.1 CVEProject cvelistV5 (CNA) (GitHub_M) CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:H

Affected products

VendorProductVersionsSource
Canonical get-workflow-version-action < 1.0.1 CVEProject cvelistV5 (CNA)

References and advisories

3
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Details

Published
2025-04-03
Last updated
2025-04-03
State
Published
Assigner (CNA)
GitHub_M

Exploit prediction (EPSS)

0.59%
Probability of exploitation in 30 days
48.6%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
No
Exploitation
None
Technical impact
Total

Weaknesses (CWE)

  • CWE-532
    Insertion of Sensitive Information into Log File