NodeBB Pre-Authentication Denial-of-Service
Priority HIGH 73CWE-241Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
Denial-of-service in NodeBB <= v2.8.10 allows unauthenticated attackers to trigger a crash, when invoking `eventName.startsWith()` or `eventName.toString()`, while processing Socket.IO messages via crafted Socket.IO messages containing array or object type for the event name respectively.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.58692 99th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-30591
- 2026-10-03 Alias added: GHSA-mp98-q49w-jjhw
References
Patch 3
More Nodebb vulnerabilities
- TI-2023-23124 A remote code execution (RCE) vulnerability in the xmlrpc.php endpoint of NodeBB Inc… CVSS 3.1CRITICAL 9.8
- TI-2022-22808 Account takeover via prototype vulnerability CVSS 3.1CRITICAL 9.8
- TI-2026-42173 NodeBB - ActivityPub Author Spoofing via Unvalidated attributedTo Mapped to Local User CVSS 4.0HIGH 8.7
- TI-2025-32286 NodeBB v4.3.0 is vulnerable to SQL injection in its search-categories API endpoint… CVSS 3.1HIGH 8.6
- TI-2022-16499 Account takeover via SSO plugins in NodeBB CVSS 3.1HIGH 8.8
- TI-2025-21119 Cross-Site Scripting (XSS) vulnerability in NodeBB v4.0.4 and before allows remote… CVSS 3.1MEDIUM 6.1
Sources
- CVE-2023-30591 · CVE Program
- CVE-2023-30591 · NVD
- FIRST EPSS
- GHSA-mp98-q49w-jjhw · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences