VulnSocial

CVE-2026-57227Patch(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 7.0.0 until 7.0.17 and 8.0.6, the MQTT parser in rust/src/mqtt/mqtt.rs permits repeated PUBREC or PUBREL messages to be appended to one transaction without a limit. Crafted MQTT traffic can grow transaction state indefinitely, consuming CPU and memory and causing slowdown or denial of service. This issue is fixed in versions 8.0.6 and 7.0.17.

oisf CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Patch / fix
Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-400CWE-770

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

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
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
oisf
Products
suricata

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-09-23: 1Patch / Workaround · 2026-09-23: 1Technical Details · 2026-09-23: 109-23
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • Hugo | DevOps | Cybersecurity 🇱🇻@HugoValters
    Patch

    CVE-2026-57227 Suricata MQTT parser DoS, CVSS 7.5. Unbounded PUBREC/PUBREL floods grow transaction state until CPU and memory exhaust. No patch confirmed yet. Update Suricata immediately. https://www.valtersit.com/cve/CVE-2026-57227 #CVE #infosec #Suricata #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 text discloses a Suricata MQTT parser DoS vulnerability with CVSS 7.5 and a flood-based impact, while stating no confirmed patch yet but explicitly urging immediate updates. The primary actionable takeaway is patch/update guidance, though confidence is moderate because no specific fixed version is named.

    0000039
    1.1K followersView on X
CPE platform detail1 entries

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