CVE-2026-22261CWE-1050

Suricata eve/alert: http1 xff handling can lead to denial of service

Low · published January 27, 2026

CVSS v3.1
3.7
EPSS
0%
Percentile
29.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
3.7 · LOW
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00365 · 29.1th percentile
Weakness
CWE-1050 · Excessive Platform Resource Consumption within a Loop
Published
2026-01-27T18:10Z
EPSS history
Timeline
  • 27 JAN 18:10Z
    Suricata eve/alert: http1 xff handling can lead to denial of service
    cvelistv5