CVE-2026-40300
Analyzed Analyzed - Analysis Complete
BaseFortify

Publication date: 2026-05-12

Last updated on: 2026-05-13

Assigner: GitHub, Inc.

Description
Zulip is an open-source team collaboration tool. Prior to 12.0, With message_edit_history_visibility_policy set to "moves", /api/v1/messages/{id}/history still returns historical content values, allowing low-privilege users to recover text that was edited away from other users' messages. This vulnerability is fixed in 12.0.
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Meta Information
Published
2026-05-12
Last Modified
2026-05-13
Generated
2026-06-10
EPSS Evaluated
2026-06-08
NVD
CVE-2026-40300
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
zulip zulip_server 10.0
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-284 The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
CWE-NVD-CWE-noinfo
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