PT-2026-42248 · Misp · Misp

Seth Kraft · Published 2026-05-20 · Updated 2026-05-29 · CVE-2026-9137

Positive Technologies (AI Summary)

CVSS v4.0

5.1

Medium

Base vector

AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions The product name cannot be determined (affected versions not specified)

Description The CSP report endpoint incorrectly allowed reports up to 1 MB before truncation, despite being intended to limit logged CSP reports to 1 KB. When this endpoint is reachable by untrusted clients, it can be used to generate excessive log volume, leading to log flooding or resource exhaustion.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2026-9137

Affected Products

Misp

References · 5

• https://github.com/MISP/MISP/commit/02932cccab230b295afcaf5aa05e363d30db0ec9 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-9137 · Security Note
• https://t.me/cveNotify/165152 · Telegram Post
• https://t.me/CVEtracker/54413 · Telegram Post
• https://twitter.com/skraft09/status/2057466344224739600 · Twitter Post