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CVE-2026-90895— MISP Interactive CLI Shell: Authorization Bypass, Credential Exposure, and Terminal Injection

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 受影响版本中的交互式 CLI 外壳（shell）实现了独立于常规 Web 应用程序的访问控制机制，从而导致了若干授权不一致的问题。 该补丁显示，CLI 的访问权限在多个对安全敏感的区域中可能与 Web 应用程序存在差异： 源（feed）列表未对非主机组织（host-organisation）用户强制执行与 Web 端一致的 限制； 源详情访问未强制执行与 相同的主机组织/站点管理员授权逻辑； 可能包含 HTTP 授权凭据的 字段未在 CLI 输出中隐藏或掩码，存在泄露风险； 服务器同步用的 值未在 CLI

CVSS 8.4 · High
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I. Basic Information for CVE-2026-90895

Vulnerability Information
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Vulnerability Title
MISP Interactive CLI Shell: Authorization Bypass, Credential Exposure, and Terminal Injection
Source: CVE Program / CVE List V5
Vulnerability Description
Affected versions of MISP’s interactive CLI shell implement access control independently from the normal web application, causing several authorization inconsistencies. The patch shows that CLI access could differ from the web application in multiple security-sensitive areas:  - feed listings did not enforce the same lookup_visible restrictions for non-host-organisation users;  - feed detail access did not enforce the same host-organisation/site-admin authorization as FeedsController::view();  - Feed.headers, which can contain HTTP authorization credentials, could be exposed instead of being hidden or masked;  - server synchronization authkey values were not explicitly hidden from CLI detail output;  - sharing-group detail access did not consistently use SharingGroup::checkIfAuthorised();  - the use command could establish context for a record without first proving that the user was authorized to view that record The commit additionally hardens pagination and terminal rendering, including neutralization of terminal control sequences found in database-backed values. Those are important hardening changes, but the main vulnerability is the CLI authorization/data-disclosure mismatch. Version affected: ≤2.5.45
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
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-2026-90895

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III. Intelligence Information for CVE-2026-90895

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IV. Related Vulnerabilities

Same product: MISP
Same vendor: MISP
Same weakness: CWE-862

V. Comments for CVE-2026-90895

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