Composer: GHSA-gjfg-22fp-rrxx fix bypass via symlinked package bin path

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

• CISA KEV Not listed.
• EPSS 0.0047, the 40th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

1. 27 Aug 2026, 11:41 UTC Published by the maintainers as a GitHub repository advisory
2. 31 Oct 2026, 13:54 UTC First seen by agentprime
3. 31 Oct 2026, 13:54 UTC Confirmed by OSV

Sources

• GitHub Advisory Database: GHSA-96h3-5x6v-m776
• OSV: GHSA-96h3-5x6v-m776
• github.com/composer/composer/security/advisories/GHSA-96h3-5x6v-m776
• nvd.nist.gov/vuln/detail/CVE-2026-59944
• github.com/composer/composer/commit/53b8bb4c24697b2f00a18cf1ef35a10392701b89
• github.com/composer/composer/commit/ad649fdfdf8ed826d4a34e0e5690c76a0b4833aa
• github.com/composer/composer
• github.com/composer/composer/releases/tag/2.10.3
• github.com/composer/composer/releases/tag/2.2.30

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.