CVE-2026-42300
critical
CVSS v3
โ
CVSS v4 NEW
9.3
VIR risk
9.5
Description
DevGuard has an unauthenticated identity assertion via `X-Admin-Token` header
Predictions
Exploit likelihood
20%
Patch ETA
โ
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 โ if you've already worked around this in production โ publish your fix to the community-verified tier.
โ Propose a mitigation on Community โ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | github.com/l3montree-dev/devguard | <1.2.2 | 1.2.2 |
| GO | github.com/l3montree-dev/devguard | < 1.2.2 | 1.2.2 |
References
- https://github.com/l3montree-dev/devguard/commit/6f38310bf93b2a63df3055038f4da82b1f4e6d9a
- https://github.com/l3montree-dev/devguard/security/advisories/GHSA-2g9v-7mr5-fgjg
- https://nvd.nist.gov/vuln/detail/CVE-2026-42300
- https://github.com/l3montree-dev/devguard
- https://github.com/advisories/GHSA-2g9v-7mr5-fgjg
CWEs
CWE-288
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.