5.3

CVE-2026-25742

Exploit

Zulip: Anonymous File Access After Disabling Spectator Access

Zulip is an open-source team collaboration tool. Prior to version 11.6, Zulip is an open-source team collaboration tool. From version 1.4.0 to before version 11.6, even after spectator access (enable_spectator_access / WEB_PUBLIC_STREAMS_ENABLED) is disabled, attachments originating from web-public streams can still be retrieved anonymously. As a result, file contents remain accessible even after public access is intended to be disabled. Similarly, even after spectator access is disabled, the /users/me/<stream_id>/topics endpoint remains reachable anonymously, allowing retrieval of topic history for web-public streams. This issue has been patched in version 11.6. This issue has been patched in version 11.6.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Zulip ≫ Zulip Version >= 1.4.0 < 11.6
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.31% 0.227
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE-862 Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

https://github.com/zulip/zulip/commit/3c045414299680b9f5dca7d76cf6cef6121c0236
Patch
https://github.com/zulip/zulip/commit/41e23347b5218b3b0397a55176c7d97396735bae
Patch
https://github.com/zulip/zulip/releases/tag/11.6
Release Notes
https://github.com/zulip/zulip/security/advisories/GHSA-f47p-xjqq-g28w
Vendor Advisory
Exploit