GHSA-5wxr-w449-57cm

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.test.osv.dev/v1/vulns/GHSA-5wxr-w449-57cm

Published

2026-05-20T15:32:31Z

Modified

2026-09-15T06:34:36Z

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 2.37.1 or 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

{
    "cwe_ids":  [
        "CWE-532"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-05-20T15:32:31Z",
    "nvd_published_at":  null,
    "severity":  "MODERATE"
}

References

Affected packages

GitHub Actions / shivammathur/setup-php

Package

Name: shivammathur/setup-php

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2.37.1

Type: GIT
Repo: https://github.com/shivammathur/setup-php
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

7c071dfe9dc99bdf297fa79cb49ea005b9fcadbc

Affected versions

1.*

1.0.0

1.1.0

1.1.1

1.1.2

1.2.1

1.3.0

1.3.1

1.3.2

1.3.3

1.3.4

1.3.5

1.3.6

1.3.7

1.3.8

1.3.9

1.4.0

1.4.1

1.4.2

1.4.3

1.4.4

1.4.5

1.4.6

1.5.0

1.5.1

1.5.2

1.5.3

1.5.4

1.5.5

1.5.6

1.5.7

1.5.8

1.6.0

1.6.1

1.6.2

1.7.0

1.7.1

1.7.2

1.7.3

1.7.4

1.8.0

1.8.1

1.8.2

2.*

2.0.0

2.0.1

2.0.2

2.1.0

2.1.2

2.1.3

2.1.4

2.11.0

2.12.0

2.13.0

2.14.0

2.15.0

2.16.0

2.17.0

2.17.1

2.18.0

2.18.1

2.19.0

2.19.1

2.2.0

2.2.1

2.2.2

2.20.0

2.20.1

2.21.0

2.21.1

2.21.2

2.22.0

2.23.0

2.24.0

2.25.0

2.25.1

2.25.2

2.25.3

2.25.4

2.25.5

2.26.0

2.27.0

2.27.1

2.28.0

2.29.0

2.3.0

2.3.1

2.3.2

2.30.0

2.30.1

2.30.2

2.30.3

2.30.4

2.30.5

2.31.0

2.31.1

2.32.0

2.33.0

2.34.0

2.34.1

2.35.0

2.35.1

2.35.2

2.35.3

2.35.4

2.35.5

2.36.0

2.37.0

2.4.0

2.4.2

2.4.3

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-5wxr-w449-57cm/GHSA-5wxr-w449-57cm.json"