CVE-2026-22261 (GCVE-0-2026-22261)

Vulnerability from cvelistv5 – Published: 2026-01-27 18:10 – Updated: 2026-01-27 18:24
VLAI?
Title
Suricata eve/alert: http1 xff handling can lead to denial of service
Summary
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.
Severity ?
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-1050 - Excessive Platform Resource Consumption within a Loop
Assigner
References
Impacted products
Vendor Product Version
OISF suricata Affected: < 7.0.14
Affected: >= 8.0.0, < 8.0.3
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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