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CVE-2026-91375.1MediumCWE-400

CVE-2026-9137: CSP Report Endpoint Log Flooding in MISP via Incorrect Size Limit

misp

Vendor fix available · Affected: misp · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.4%probability of exploitation in the next 30 days
30th percentile
050100

Higher than 30% of scored CVEs

5.1MediumCVSS 4.0
LowMedium

DescriptionCVE.org

The CSP report endpoint in MISP 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.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • misp · mispfrom 2.5.0 up to and including 2.5.37

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas
Exploitation
Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV
Not listed
Public check
No public nuclei template
Vendor
misp
Published
May 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-9137 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References