Composer
21 CVEs tracked. None of them is in CISA KEV.
This hub aggregates every CVE we track for Composer, a product in the oss libraries space. Use it to gauge the current risk picture and drill into individual advisories.
Composer CVEs per month
| Month | CVEs |
|---|---|
| 2024-10 | 0 |
| 2024-11 | 0 |
| 2024-12 | 0 |
| 2025-01 | 0 |
| 2025-02 | 0 |
| 2025-03 | 0 |
| 2025-04 | 0 |
| 2025-05 | 1 |
| 2025-06 | 0 |
| 2025-07 | 0 |
| 2025-08 | 0 |
| 2025-09 | 0 |
| 2025-10 | 0 |
| 2025-11 | 0 |
| 2025-12 | 1 |
| 2026-01 | 0 |
| 2026-02 | 0 |
| 2026-03 | 0 |
| 2026-04 | 2 |
| 2026-05 | 0 |
| 2026-06 | 1 |
| 2026-07 | 5 |
| 2026-08 | 0 |
| 2026-09 | 2 |
Severity
How the 21 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.
- High12
- Medium8
Latest CVEs
The 15 most recently published vulnerabilities affecting Composer.
- CVE-2026-59944Composer: CVE-2026-59946 fix bypass via symlinked package bin path6.1
- CVE-2026-84361Composer: Perforce source URL permits P4PORT `rsh:` command execution—
- CVE-2026-45793Composer: Github Actions issued GITHUB_TOKEN disclosure in GitHub Actions logs7.5
- CVE-2026-11914Composer - Critical - Unsupported - SA-CONTRIB-2026-0465.9
- CVE-2026-59947Composer: URL-embedded HTTP-Basic username leaks to verbose logs (GitHub PAT exposure)4.7
- CVE-2026-59948Composer: Arbitrary file write outside vendor via malicious transitive package name7.0
- CVE-2026-59946Composer: Path traversal in package bin field lets dependencies chmod arbitrary host files6.1
- CVE-2026-10043MosaicML Composer Deserialization of Untrusted Data Remote Code Execution Vulnerability7.8
- CVE-2026-40261Composer has Command Injection via Malicious Perforce Reference8.8
- CVE-2026-40176Composer is vulnerable to Command Injection via Malicious Perforce Repository7.8
- CVE-2025-67746Composer vulnerable to ANSI sequence injection4.3
- CVE-2025-3510tagDiv Composer <= 5.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via Multiple Shortcodes6.4
- CVE-2024-35242Composer vulnerable to command injection via malicious git/hg branch names8.8
- CVE-2024-35241Composer vulnerable to command injection via malicious git branch name8.8
- CVE-2024-24821Code execution and possible privilege escalation via compromised InstalledVersions.php or installed.php in Composer8.8
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