OpenC3 COSMOS: Authenticated remote code execution via the user-writable config overlay (table definitions, cmd/tlm definitions, and script suites)

Summary COSMOS reads configuration from a user-writable overlay targetsmodified/ before the read-only plugin-installed targets/ tree, and the config subsystem executes code on those files: ConfigParser renders every file as ERB by default, a GENERICREADCONVERSION / GENERICWRITECONVERSION block is...

PT-2026-97524

Name of the Vulnerable Software and Affected Versions OpenC3 COSMOS versions 5.1.0 through 7.3.0 Description Authenticated non-administrator users can achieve arbitrary code execution on a COSMOS server by writing malicious content into the targets modified/ overlay directory. This is possible...