websafe-kb/07-framework-security/platforms/mattermost/cases/mattermost-cve-2026-22545.md

title, system_id, category, advisory_mode, published_date, updated_date, severity, exploit_status, source_confidence, verification_status, verification_mode, artifact_mode, last_run_id, target_types, allow_public_validation, authorization_prerequisite, minimal_validation, aliases, affected_versions, fixed_versions, secure_code_topics, primary_source

title	system_id	category	advisory_mode	published_date	updated_date	severity	exploit_status	source_confidence	verification_status	verification_mode	artifact_mode	last_run_id	target_types	allow_public_validation	authorization_prerequisite	minimal_validation	aliases	affected_versions	fixed_versions	secure_code_topics	primary_source
Mattermost fails to validate user's authentication method when processing account auth type switch	mattermost	platforms	core	2026-03-16T15:30:47Z	2026-03-19T19:31:20.982512Z	low	unknown	ecosystem-authority	triage-manual	synthetic	synthetic		lab-local lab-public authorized-third-party	yes, with ownership or explicit authorization	asset ownership proof or explicit written authorization	read-only probe, controlled payload, reversible test	CVE-2026-22545 GHSA-rv67-7w2g-7976	introduced=0, fixed<8.0.0-20260127144908-ced9a56e3988 introduced=0, fixed<5.3.2-0.20260127144908-ced9a56e3988 introduced=10.11.0-rc1, fixed<10.11.11 introduced=11.2.0-rc1, fixed<11.2.3 introduced=11.3.0-rc1, fixed<11.3.1	8.0.0-20260127144908-ced9a56e3988 5.3.2-0.20260127144908-ced9a56e3988 10.11.11 11.2.3 11.3.1	authz-server-side-recheck xss-output-encoding token-cookie-storage dependency-upgrade-policy	https://nvd.nist.gov/vuln/detail/CVE-2026-22545

Mattermost fails to validate user's authentication method when processing account auth type switch

本地实证状态

• 实证状态: triage-manual
• 实证方式: synthetic
• Artifact 模式: synthetic
• 最近运行: -
• 浏览器证据: missing
• Run Bundle: -

事件层

• Canonical ID: mattermost--CVE-2026-22545
• 系统: mattermost
• 严重度: low
• 来源置信度: ecosystem-authority
• 官方主源: https://nvd.nist.gov/vuln/detail/CVE-2026-22545
• 影响版本: introduced=0, fixed<8.0.0-20260127144908-ced9a56e3988, introduced=0, fixed<5.3.2-0.20260127144908-ced9a56e3988, introduced=10.11.0-rc1, fixed<10.11.11, introduced=11.2.0-rc1, fixed<11.2.3, introduced=11.3.0-rc1, fixed<11.3.1
• 修复版本: 8.0.0-20260127144908-ced9a56e3988, 5.3.2-0.20260127144908-ced9a56e3988, 10.11.11, 11.2.3, 11.3.1

其他来源

• ced9a56e39
• https://github.com/mattermost/mattermost
• https://mattermost.com/security-updates

实验层

• 仅用于自有资产、测试环境或已明确授权目标。
• 允许公网可达目标，但必须满足资产归属或明确授权前提。
• 最小化验证方式: 最小化验证、只读探测、可审计回显、受控注入。
• 若该案例涉及插件、模块或扩展，应同时检查供应链与升级策略。
• 禁止场景: 无归属证明或无明确授权的公网目标；知名公共网站或与测试无关的第三方资产；会造成持久破坏、数据越权下载或不可回滚影响的动作

修复示例

• javascript-typescript:authz-server-side-recheck
• nodejs:authz-server-side-recheck
• java:authz-server-side-recheck
• php:authz-server-side-recheck
• python:authz-server-side-recheck
• ruby:authz-server-side-recheck
• csharp:authz-server-side-recheck
• go:authz-server-side-recheck
• javascript-typescript:xss-output-encoding
• nodejs:xss-output-encoding
• java:xss-output-encoding
• php:xss-output-encoding
• python:xss-output-encoding
• ruby:xss-output-encoding
• csharp:xss-output-encoding
• go:xss-output-encoding
• javascript-typescript:token-cookie-storage
• nodejs:token-cookie-storage
• java:token-cookie-storage
• php:token-cookie-storage
• python:token-cookie-storage
• ruby:token-cookie-storage
• csharp:token-cookie-storage
• go:token-cookie-storage
• javascript-typescript:dependency-upgrade-policy
• nodejs:dependency-upgrade-policy
• java:dependency-upgrade-policy
• php:dependency-upgrade-policy
• python:dependency-upgrade-policy
• ruby:dependency-upgrade-policy
• csharp:dependency-upgrade-policy
• go:dependency-upgrade-policy