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CVE-2026-92003— MISP Unthrottled Authentication Failure Log Writes Enable Resource Exhaustion

Quick assessment

Affected
MISP MISP
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

受影响版本的 MISP 未能一致地应用现有的认证失败日志记录限流机制。 两个 API 认证失败的分支直接写入了 Log 模型： 未提供认证密钥的 API 请求； 提供了长度不正确的 API 密钥的请求。 与其他认证失败情形不同，这些代码路径绕过了 函数，因此每个请求都可能创建一条新的持久化 日志条目。 受影响版本：≤ 2.5.45

CVSS 6.9 · Medium

Possible ATT&CK Techniques 1 AI

T1552.001 · Credentials In Files
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I. Basic Information for CVE-2026-92003

Vulnerability Information
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Vulnerability Title
MISP Unthrottled Authentication Failure Log Writes Enable Resource Exhaustion
Source: CVE Program / CVE List V5
Vulnerability Description
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
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
MISP MISP 0 ~ 2.5.46 -

II. Public POCs for CVE-2026-92003

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III. Intelligence Information for CVE-2026-92003

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Patches & Fixes for CVE-2026-92003 (1)

Same Patch Batch · MISP · 2026-09-15 · 8 CVEs total

CVE-2026-91825 7.1 HIGH MISP: Missing Authorization Check for Event Sharing Group When Distribution Field Is Omitt
CVE-2026-91846 7.1 HIGH MISP Collection Element Add Missing Authorization on Referenced Object UUID
CVE-2026-91819 6.9 MEDIUM MISP: HTTP Method Override Bypasses CSRF and Form Validation in BetterSecurityComponent
CVE-2026-91851 5.3 MEDIUM MISP Dashboard Template ACL Bypass Due to VARCHAR-to-Integer Type Coercion in Permission F
CVE-2026-91857 5.3 MEDIUM MISP: State-changing actions accessible via GET request enabling CSRF
CVE-2026-91859 5.3 MEDIUM MISP Access Log Entry Overwritten by Error Controller's Second beforeFilter Pass
CVE-2026-92002 5.1 MEDIUM MISP: Authentication failure logging suppressed during Redis unavailability

IV. Related Vulnerabilities

Same product: MISP
Same vendor: MISP
Same weakness: CWE-770

V. Comments for CVE-2026-92003

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