CVE-2026-22261 is a denial-of-service vulnerability affecting Suricata, a network IDS/IPS/NSM engine, in versions prior to 8.0.3 and 7.0.14. The vulnerability stems from inefficient handling of X-Forwarded-For (XFF) headers, particularly for alerts not triggered within a transaction, leading to severe performance degradation. With a CVSS score of 5.3 (MEDIUM), this vulnerability is remotely exploitable with low attack complexity, requiring no user interaction, and primarily impacts availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 7.0.14CPE matchmatch criteria | cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:* | ||
>= 8.0.0, < 8.0.3CPE matchmatch criteria | cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.