GCVE-1-2026-0034 (CVE-2026-9137)

Vulnerability from gna-1 – Published: 2026-05-20 18:15 – Updated: 2026-05-20 18:42
VLAI?
Title
CSP Report Endpoint Log Flooding via Incorrect Size Limit
Summary
The CSP report endpoint intended to limit logged CSP reports to 1 KB but incorrectly allowed reports up to 1 MB before truncation. On deployments where the endpoint is reachable by untrusted clients, this could allow attackers to generate excessive log volume and contribute to resource exhaustion or log flooding.
Severity ?
5.1 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
Vendor Product Version
misp misp Affected: 2.5.0 , ≤ 2.5.37 (semver)
Create a notification for this product.
Credits
Seth Kraft
Relationships ?
To clipboard 

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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.