VulnSocial

CVE-2026-71418General(oisf / suricata)

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch oisf suricata systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, DNS-over-HTTP/2 processing in rust/src/http2/http2.rs retains previously processed HTTP/2 DATA frame contents instead of clearing the internal buffer. Multiple DATA frames with the EndOfStream flag set can grow the buffer to its 65 KiB limit while causing all prior contents to be processed again, producing quadratic CPU complexity, degraded packet processing, loss of monitoring visibility, or denial of service. This issue is fixed in version 8.0.6.

oisf CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Patch / fix
Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-407

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • suricata

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • General: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-09-19); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
oisf
Products
suricata

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-09-19: 1Mentions · 2026-09-26: 1Patch / Workaround · 2026-09-26: 1Technical Details · 2026-09-26: 109-1909-26
Signal classification2 categories
General
150.0%
Patch
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-09-191
General1
2026-09-261
Patch1
Full discourse2 posts
  • Hugo | DevOps | Cybersecurity 🇱🇻@HugoValters
    Patch

    CVE-2026-71418: Suricata DoS, CVSS 7.5. DNS-over-HTTP/2 buffer flaw causes quadratic CPU use, degrading packet processing. Unpatched as of now - update immediately. https://www.valtersit.com/cve/CVE-2026-71418 #CVE #Suricata #infosec #Suricata #CVEALERT #CVE #infosec #Linux #XSS #valtersit #snippet #SysAdmin #cybersecurity #devsecops #devops #developer #100daysofcode #git #github #gitlab #redteam #blueteam #ethicalhacker #cybersecurityawareness #cybersecuritynews #cybersecuritytips #python #hacker #kali #ubuntu #debian #docker

    Post summary

    The tweet discloses technical details for CVE-2026-71418 (Suricata DoS) and explicitly urges immediate updates despite noting it is currently unpatched, prioritizing the remediation action.

    0000037
    1.1K followersView on X
  • CVE@CVEnew
    General

    CVE-2026-71418 Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, DNS-over-HTTP/2 processi… https://www.cve.org/CVERecord?id=CVE-2026-71418

    Post summary

    The text mentions CVE-2026-71418 and describes Suricata along with affected versions, but lacks any specific indicators of PoC, exploitation, patching, or detailed technical vulnerability information.

    00000799
    58.1K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appoisfsuricata---

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