GHSA-5wxr-w449-57cm
Suggest an improvement- Source
- https://github.com/advisories/GHSA-5wxr-w449-57cm
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-5wxr-w449-57cm/GHSA-5wxr-w449-57cm.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-5wxr-w449-57cm
- Published
- 2026-05-20T15:32:31Z
- Modified
- 2026-05-20T15:48:07.549194960Z
- Severity
-
- 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- Setup PHP: GitHub tokens configured by setup-php may be exposed through pinned affected Composer versions
- Details
-
Impact
This affects only workflows that pin an exact affected Composer semver version through setup-php, for example
tools: composer:2.9.7.Workflows using the default Composer version,
composer:v2, or no pinned Composer version are not affected through setup-php, because those Composer URLs have been updated to patched Composer releases for all setup-php versions.setup-php does not directly print the token. The token may be exposed through Composer when Composer validates github-oauth auth and rejects GitHub's newer hyphen-containing token format.
Public repository logs may expose the token. GitHub-hosted runner GITHUB_TOKEN values expire after the job, but exposure may still matter during the token lifetime and for longer-lived GitHub App or user tokens.
Patches
setup-php 2.37.1 skips generated GitHub OAuth auth for pinned Composer versions affected by Composer GHSA-f9f8-rm49-7jv2 while preserving other Composer auth, including Packagist auth.
Workarounds
Upgrade to setup-php
2.37.1or newer. You can also avoid the affected path by using a patched Composer version: 2.9.8, 2.2.28, 1.10.28, or newer supported Composer releases.It is recommended to avoid pinning affected Composer versions such as
composer:2.9.7, unless you have automations to do timely updates in your workflows. - Database specific
{ "github_reviewed": true, "severity": "MODERATE", "github_reviewed_at": "2026-05-20T15:32:31Z", "nvd_published_at": null, "cwe_ids": [ "CWE-532" ] }- References