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CVE-2026-92002— MISP: Authentication failure logging suppressed during Redis unavailability

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.

MISP是MISP组织开源的一个威胁情报共享与分析平台。 MISP 2.5.45及之前版本存在日志信息泄露漏洞，该漏洞源于Redis无法连接时User->setupRedis()返回false，且_shouldLog()逻辑仅在Redis实例存在且没有节流键时返回true，导致Redis不可用期间身份验证失败日志无法写入，可能造成身份验证失败活动未被记录。

CVSS 5.1 · Medium EPSS 0.53% · P45

Possible ATT&CK Techniques 2 AI

T1070 · Indicator Removal T1562

Affected Version Matrix 1

VendorProduct Version RangeStatus
MISP MISP < 2.5.46 affected
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I. Basic Information for CVE-2026-92002

Vulnerability Information
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Vulnerability Title
MISP: Authentication failure logging suppressed during Redis unavailability
Source: CVE Program / CVE List V5
Vulnerability Description
Affected versions of MISP use Redis to throttle repeated authentication-failure log entries. The intent is to avoid excessive duplicate logs while still recording failed authentication activity. However, User->setupRedis() returns false when Redis cannot be reached. The vulnerable _shouldLog() logic only returned true when a Redis instance existed and no throttle key was present. Therefore, when Redis was unavailable, the function did not allow the log write at all, effectively silencing authentication-failure logging for the duration of the outage. Version affected: ≤2.5.45
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的日志记录
Source: CVE Program / CVE List V5
Vulnerability Title
MISP 日志信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MISP是MISP组织开源的一个威胁情报共享与分析平台。 MISP 2.5.45及之前版本存在日志信息泄露漏洞，该漏洞源于Redis无法连接时User->setupRedis()返回false，且_shouldLog()逻辑仅在Redis实例存在且没有节流键时返回true，导致Redis不可用期间身份验证失败日志无法写入，可能造成身份验证失败活动未被记录。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

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

II. Public POCs for CVE-2026-92002

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III. Intelligence Information for CVE-2026-92002

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Patches & Fixes for CVE-2026-92002 (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-2026-92003 6.9 MEDIUM MISP Unthrottled Authentication Failure Log Writes Enable Resource Exhaustion
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

IV. Related Vulnerabilities

Same product: MISP
Same vendor: MISP
Same weakness: CWE-778