Is CVE-2026-22261 in the CISA KEV catalog?

No. CVE-2026-22261 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-22261?

CVE-2026-22261 has a CVSS v3 base score of 3.7 (LOW).

What is the EPSS score for CVE-2026-22261?

CVE-2026-22261 has an EPSS score of 0.31% (23th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-22261?

Upgrade suricata on debian 13 to 1:7.0.10-1+deb13u3 or later.

CVE & CISA-KEV Catalog

CVE-2026-22261

LOW

3.7

CVSS v3

NVD

Description

Suricata is a network IDS, IPS and NSM engine. Prior to versions 8.0.3 and 7.0.14, various inefficiencies in xff handling, especially for alerts not triggered in a tx, can lead to severe slowdowns. Versions 8.0.3 and 7.0.14 contain a patch. As a workaround, disable XFF support in the eve configuration. The setting is disabled by default.

CWE-1050

How to fix

Remediation Available

suricataDebian

Fixed in:1:7.0.10-1+deb13u3CVE-2026-22261

Fixed in:1:8.0.3-1CVE-2026-22261

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploit Intelligence

0.31%probability of exploitation in 30 days

23rdpercentile

Low risk: more likely to be exploited than 23% of all known CVEs.

References

Patch2

Vendor Advisory1

github.com

Other references1

redmine.openinfosecfoundation.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-01-29.