MEDIUM SeverityCVSS 4.06.0CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVE-2026-40300

Last updated May 12, 2026 · Published May 12, 2026

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Prior to 12.0, With message_edit_history_visibility_policy set to "moves", /api/v1/messages/{id}/history still returns historical content values, allowing low-privilege users to recover text that was edited away from other users' messages.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.

Affected products

1 listed

zulip:zulip

Mappings

CWE

CWE-284

CAPEC

None listed.