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Rapid7 Analysis: Microsoft SharePoint JWT Token Authentication Bypass (CVE-2026-55040)

Rapid7 Blog · published 11 August 2026

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3blogs citing

First cited: 24 Aug 2026
Most recent: 13 Sept 2026
Rank this month: not ranked
Links from this post: 2
Words captured: 2,842

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In the post

Date

About Authentication Bypass - Microsoft SharePoint (CVE-2026-55040) vulnerability Read at the source ↗

13 Sept 2026

Risky Bulletin: Russia starts blocking DoH and DoT Read at the source ↗

26 Aug 2026

Exploiting SharePoint: CVE-2026-55040 and CVE-2026-63520 RCE Chain Read at the source ↗

24 Aug 2026

Links from this post

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https://github.com/sfewer-r7/CVE-2026-55040

github.com

https://www.brighttalk.com/webcast/10457/673829?utm_source=Rapid7&utm_medium=brighttalk&utm_medium=organic-social&utm_campaign=673829%3Futm_source%3Dlinkedin&utm_campaign=global-mdr-q3-2026-global-webinar-prospect-eng-etos-25&utm_content=microsoft-sharepoint-webinar&utm_term=touch1

brighttalk.com