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CVE-2026-49191criticalCWE-287

Exposed Hard-coded M3WebServer Backend API Key

28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.3epss 0.3%
exploitation probability
0.3%top 79% of all CVEs
observed exploitation
nono source reports it
The production build of the M3WebServer hard-codes its backend API keys, which can be easily intercepted through verbose error handling pages.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N