CVE-2026-45759

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.8% (56th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.8%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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 v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation1% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.8%
EPSS %ILE
56th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 10, 2026

Last Modified

September 16, 2026

Advisory Details (3)

Auto-updated Sep 10, 2026
Patch available. Sources: github.
generic

Open Information Security Foundation

https://redmine.openinfosecfoundation.org/issues/8529
github Patch Available

http1: quadratic Content-Disposition processing can lead to denial of service · Advisory · OISF/suricata · GitHub

https://github.com/OISF/suricata/security/advisories/GHSA-cfq5-g2v5-6652
generic

Suricata 8.0.5 and 7.0.16 released! - Announcements - Suricata

https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315

Affected Packages

(2 across 2 ecosystems)
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
suricata1:7.0.10-1 ... 1:8.0.7-2~exp1 (29 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
suricata1:7.0.10-1 ... 1:8.0.5-1~bpo13+1 (19 versions)
  • every version up to 1:8.0.5-1: fixed in 1:8.0.5-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 41× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-03 19:17 UTCEG score recompute
  2. 2026-10-03 14:25 UTCEPSS rescore
  3. 2026-10-02 18:18 UTCEG score recompute
  4. 2026-10-02 05:47 UTCEG score recompute
  5. 2026-10-01 19:50 UTCEPSS rescore
  6. 2026-10-01 03:19 UTCEG score recompute
  7. 2026-09-30 15:03 UTCEPSS rescore
  8. 2026-09-30 02:19 UTCEG score recompute
  9. 2026-09-29 01:16 UTCEG score recompute
  10. 2026-09-28 00:16 UTCEG score recompute
  11. 2026-09-27 13:48 UTCEPSS rescore
  12. 2026-09-26 22:46 UTCEG score recompute
  13. 2026-09-26 15:58 UTCEPSS rescore
  14. 2026-09-26 10:11 UTCEG score recompute
  15. 2026-09-24 16:53 UTCEG score recompute
  16. 2026-09-24 04:23 UTCEG score recompute
  17. 2026-09-23 17:53 UTCEPSS rescore
  18. 2026-09-22 14:54 UTCEG score recompute
  19. 2026-09-22 02:23 UTCEG score recompute
  20. 2026-09-21 01:24 UTCEG score recompute
  21. 2026-09-20 20:15 UTCEPSS rescore
  22. 2026-09-20 00:09 UTCEG score recompute
  23. 2026-09-18 23:07 UTCEG score recompute
  24. 2026-09-18 19:28 UTCEPSS rescore
  25. 2026-09-17 22:08 UTCEG score recompute
Show 16 more
  1. 2026-09-17 19:31 UTCEPSS rescore
  2. 2026-09-16 21:08 UTCEG score recompute
  3. 2026-09-16 14:08 UTCEPSS rescore
  4. 2026-09-16 08:51 UTCEG score recompute
  5. 2026-09-16 05:15 UTCEPSS rescore
  6. 2026-09-15 06:58 UTCEG score recompute
  7. 2026-09-13 17:29 UTCEG score recompute
  8. 2026-09-13 16:47 UTCEPSS rescore
  9. 2026-09-12 16:30 UTCEG score recompute
  10. 2026-09-12 15:01 UTCEPSS rescore
  11. 2026-09-11 15:30 UTCEG score recompute
  12. 2026-09-11 15:04 UTCEG score recompute
  13. 2026-09-11 14:53 UTCEPSS rescore
  14. 2026-09-10 21:19 UTCEG score recompute
  15. 2026-09-10 21:05 UTCEG score recompute
  16. 2026-09-10 21:05 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-45759?
CVE-2026-45759 is a high vulnerability published on September 10, 2026. 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…
When was CVE-2026-45759 disclosed?
CVE-2026-45759 was first published on September 10, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45759 actively exploited?
CVE-2026-45759 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.8% probability of exploitation in the next 30 days (56th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-45759?
CVE-2026-45759 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-45759?
A fix for CVE-2026-45759 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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