Weak authentication in Microsoft Office SharePoint allows an unauthorized attacker to bypass a security feature over a network.
严重 CVSS 9.1 CISA KEV 在册
摘要
Weak authentication in Microsoft Office SharePoint allows an unauthorized attacker to bypass a security feature over a network.
中文摘要建设中，暂以英文摘要呈现（DR-003 v2）。
深度研判
该漏洞尚未生成深度研判报告（DR-003 v2 AI pipeline 建设中）。
受影响产品
- :
- Microsoft:SharePoint
数据来源
- NVD DATABASE
- CISA KEV DATABASE
原始链接
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55040 Patch
- https://github.com/sfewer-r7/CVE-2026-55040
- https://www.rapid7.com/blog/post/ra-microsoft-sharepoint-jwt-token-authentication-bypass-cve-2026-55040/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-55040
- https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk reference
- https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk reference
- https://nvd.nist.gov/vuln/detail/CVE-2026-55040 reference
时间线
- nvd_ingest NVD
- kev_ingest CISA KEV