Log Management Issue in MISP by Risk Scanning Technologies
CVE-2026-9137

5.1MEDIUM

Key Information:

Vendor

Misp

Status
Misp
Vendor
CVE Published:
20 May 2026

What is CVE-2026-9137?

A log management flaw exists in MISP where the CSP report endpoint inadvertently allows log reports to reach up to 1 MB instead of the intended 1 KB limit. This flaw poses a risk when the endpoint is accessed by untrusted clients, enabling attackers to generate a large volume of logs. Consequently, this could lead to resource exhaustion, overwhelming the logging system, and potentially causing service disruptions.

Affected Version(s)

misp 2.5.0 <= 2.5.37

References

https://github.com/MISP/MISP/commit/02932cccab230b295afca...
patch

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Seth Kraft
.