PT-2026-45131 · Github Actions · Shivammathur/Setup-Php

Publicado

2026-05-20

·

Atualizado

2026-05-20

CVSS v3.1

5.9

Média

VetorAV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

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.

Correção

Insertion into Log File

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Enumeração de Fraquezas

Identificadores relacionados

GHSA-5WXR-W449-57CM

Produtos afetados

Shivammathur/Setup-Php