CVE-2026-42084
high
CVSS v3
8.1
CVSS v4 NEW
—
VIR risk
8.1
Description
OpenC3 COSMOS: Hijacked session token can be used to reset password for persistence
Predictions
Exploit likelihood
88%
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.
References
- https://github.com/OpenC3/cosmos/security/advisories/GHSA-wgx6-g857-jjf7
- https://github.com/OpenC3/cosmos/commit/2e623714e3426d5ae81b6f8239d4a2a6937ef776
- https://github.com/OpenC3/cosmos/releases/tag/v6.10.5
- https://github.com/OpenC3/cosmos/releases/tag/v7.0.0-rc3
- https://nvd.nist.gov/vuln/detail/CVE-2026-42084
- https://github.com/OpenC3/cosmos
- https://github.com/advisories/GHSA-wgx6-g857-jjf7
CWEs
CWE-620
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.