TI-2026-62133 Aliases CVE-2026-92003 GHSA-rr6q-fmv4-p23m

MISP Unthrottled Authentication Failure Log Writes Enable Resource Exhaustion

LOW 37CWE-400Published 2026-09-15 · Updated 2026-09-15

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · Low
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-400.

Summary

Affected versions of MISP do not consistently apply the existing authentication-failure logging throttle. Two API authentication failure branches wrote directly to the Log model: - API requests with no authentication key; - requests supplying an API key with an incorrect length Unlike other authentication failures, these paths bypassed _shouldLog(), so every request could create another durable auth_fail entry. Version affected: ≤2.5.45

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00571 47th percentileScored 2026-11-07

Fix Fixed MISP (MISP): 2.5.46

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
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

Vendor	Product	Affected versions	Fixed in	Status	Source
MISP	MISP	before 2.5.46	2.5.46	Patch available	CNA

MISP VendorMISP Affected before 2.5.46 Fixed in 2.5.46 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:misp-project:misp::::::::	—	—	Misp-project

cpe:2.3:a:misp-project:misp:*:*:*:*:*:*:*:* Versions — — ·Misp-project

Remediation

Fix · CNA MISP (MISP) Fixed in 2.5.46

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-09-15
MISP 2.5.46
8 records Highest priority Priority LOW 8 LOW
Other records, highest priority first
- TI-2026-62040 MISP Collection Element Add Missing Authorization on Referenced Object UUIDPriority LOW 31
- TI-2026-62027 MISP: Missing Authorization Check for Event Sharing Group When Distribution Field Is Omitted During EditPriority LOW 31
- TI-2026-62026 MISP: HTTP Method Override Bypasses CSRF and Form Validation in BetterSecurityComponentPriority LOW 30
Show all 8 records →

Timeline

2026-10-02 Threatist record created from CVE-2026-92003
2026-10-03 Alias added: GHSA-rr6q-fmv4-p23m

References

Patch 1

Security patch

TI-2025-41517 In MISP before 2.5.28, app/View/Elements/Workflows/executionPath.ctp allows XSS in the workflow execution path. CVSS 3.1CRITICAL 9.0
TI-2026-65744 MISP TOTP Code Replay Allows Duplicate Authentication Within Validity Period CVSS 4.0CRITICAL 9.3
TI-2026-54145 Path Traversal in MISP Object Template Resolution During STIX Import and Export in misp-stix library CVSS 4.0HIGH 8.8
TI-2020-10250 MISP MISP-maltego 1.4.4 incorrectly shares a MISP connection across users in a remote-transform use case. CVSS 3.1CRITICAL 9.8
TI-2026-59159 MISP Unauthenticated Mail Endpoints Allow Unbounded Storage Consumption and Request Flooding CVSS 4.0HIGH 8.7
TI-2026-58541 MISP LDAP and LinOTP Authentication Bypass via Empty or Invalid Credentials CVSS 4.0CRITICAL 9.5

See all 182 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences