CVE-2026-42084

Description

OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. Prior to versions 6.10.5 and 7.0.0-rc3, the OpenC3 password change functionality allows a user to change their password without providing the old password, by accepting a valid session token instead. In assumed breach scenarios, this behaviour can be exploited by an attacker who has already obtained a valid session token, to gain persistence in hijacked account (including admin) and prevent legitimate users from accessing the account. This issue has been patched in versions 6.10.5 and 7.0.0-rc3.

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Produits concernés

• OpenC3 cosmos

Scores CVSS

Faiblesses (CWE)

• CWE-620

Références

• https://github.com/OpenC3/cosmos/commit/2e623714e3426d5ae81b6f8239d4a2a6937ef776 Patch
• https://github.com/OpenC3/cosmos/releases/tag/v6.10.5 Release Notes
• https://github.com/OpenC3/cosmos/releases/tag/v7.0.0-rc3 Release Notes
• https://github.com/OpenC3/cosmos/security/advisories/GHSA-wgx6-g857-jjf7 ExploitVendor Advisory
• https://github.com/OpenC3/cosmos/security/advisories/GHSA-wgx6-g857-jjf7 ExploitVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories