CVE-2026-45793
high
CVSS v3
—
CVSS v4 NEW
—
VIR risk
8.0
Description
Github Actions issued GITHUB_TOKEN disclosure in GitHub Actions logs
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 0.9.1+dfsg-1 |
| debian | bullseye | fixed | 0.9.1+dfsg-1 |
| debian | forky | fixed | 0.9.1+dfsg-1 |
| debian | sid | fixed | 0.9.1+dfsg-1 |
| debian | trixie | fixed | 0.9.1+dfsg-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Packagist | composer/composer | >=2.3,<2.9.8|>=2.0.0,<2.2.28|>=1.0,<1.10.28 | |
| Packagist | composer/composer | >=2.3.0,<2.9.8 | 2.9.8 |
| Packagist | composer/composer | >=2.0.0,<2.2.28 | 2.2.28 |
| Packagist | composer/composer | >=1.0,<1.10.28 | 1.10.28 |
| COMPOSER | composer/composer | >= 1.0, < 1.10.28 | 1.10.28 |
| COMPOSER | composer/composer | >= 2.0.0, < 2.2.28 | 2.2.28 |
| COMPOSER | composer/composer | >= 2.3.0, < 2.9.8 | 2.9.8 |
References
- https://github.com/composer/composer/security/advisories/GHSA-f9f8-rm49-7jv2
- https://security-tracker.debian.org/tracker/CVE-2026-45793
- https://github.com/FriendsOfPHP/security-advisories/blob/master/composer/composer/CVE-2026-45793.yaml
- https://github.com/composer/composer
- https://github.com/advisories/GHSA-f9f8-rm49-7jv2
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.