MISP 2.5.43 patches RCE and access-control flaws
MISP 2.5.43 closes two remote-code-execution vulnerabilities, authentication issues, and mass-assignment/broken-access-control flaws across 74 controllers; upgrade is strongly recommended.
Sourcemisp-project.org — open the original
What to check
- Applies to
- The 6 CVEs named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- No exploitation in the wild and no public exploit is recorded for the CVEs named.
MISP released version 2.5.43 as a security hardening release addressing multiple critical authorization and code-execution issues. A structured codebase-wide audit of 74 controllers uncovered two RCE vectors: one via arbitrary rdkafka config-path manipulation and another via arbitrary ndjson log-path control, both previously mitigated only by requiring a compromised site-admin account. The release also remediates seven broken-access-control (IDOR) issues across EventReports, SharingGroups, CollectionElements, TemplateElements, and the DecayingModel subsystem, plus 13 mass-assignment fixes preventing unauthorized field modification. Azure AD authentication was hardened and crypto-key restrictions tightened to supported Event parent types.
Mentioned in this report
Source reporting: https://www.misp-project.org/2026/06/22/misp.2.5.43.released.html
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