CVE-2026-22261

EUVD-2026-4786
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
3.7 LOW
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
GitHub_MCNA
3.7 LOW
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 16%
Affected Products (NVD)
VendorProductVersion
oisfsuricata
𝑥
< 7.0.14
oisfsuricata
8.0.0 ≤
𝑥
< 8.0.3
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
suricata
bookworm
no-dsa
bullseye
vulnerable
bullseye (security)
vulnerable
forky
1:8.0.3-1
fixed
sid
1:8.0.3-1
fixed
trixie
no-dsa
Common Weakness Enumeration
References
https://github.com/OISF/suricata/commit/3f0725b34c7871c2de4346c8af872f10f4501e44
https://github.com/OISF/suricata/commit/af246ae7ab1b70c09f83c0619b253095ccc18667
https://github.com/OISF/suricata/security/advisories/GHSA-5jvg-5j3p-34cf
https://redmine.openinfosecfoundation.org/issues/8156