7.5

CVE-2026-45759: oisf suricata Uncontrolled Resource Consumption

CVSS: 7.5v3.1HighAnalyzed
AliasesUBUNTU-CVE-2026-45759DEBIAN-CVE-2026-45759
Published 10-09-2026Last modified 11-09-2026
Open JSON

Vulnerability summary

CVE-2026-45759 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in oisf suricata. EPSS estimates a 0.84% chance of exploitation in the next 30 days, higher than 57.2% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.84%
0%100%
Low · +0.25 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:10885-1

Timeline

  1. 10-09-2026
    PublishedVulnerability first disclosed.
  2. 11-09-2026
    Last modifiedVulnerability information updated.

Description

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, Suricata could repeatedly perform expensive parsing of large HTTP `Content-Disposition` headers during HTTP response body processing. Crafted HTTP traffic could cause excessive CPU usage and denial of service. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, use a rule like `alert http1 any any -> any any (sid: 1; http.request_header; content: "Content-Disposition:"; startswith; bsize: > 8192; bypass;)`.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.84%

Chance of exploitation in the next 30 days

Percentile

57%

Versus all other CVEs

30-day change

+0.25 pp

From 0.58% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.84%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • suricataAll versions (No fix recorded) | < 1:8.0.5-1
Oisf1 product
  • suricata< 7.0.16 | ≥ 7.0.0, ≤ 7.0.16 | ≥ 8.0.0, < 8.0.5
Ubuntu1 product
  • suricataAll versions (No fix recorded)

3 vendors · 3 products

References

10 links