CVEvulnerability

CVE-2025-27149

4.6 MEDIUM Published 2025-03-31 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2025-03-31
Last modified
2026-06-17
Assigner
[email protected]
CVSS 4.0 ([email protected])
4.6 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1 ([email protected])
2.7 LOW — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Weaknesses
CWE-497

Description

Zulip server provides an open-source team chat that helps teams stay productive and focused. Prior to 10.0, the data export to organization administrators feature in Zulip leaks private data. The collection of user-agent types identifying specific integrations or HTTP libraries (E.g., ZulipGitlabWebhook, okhttp, or PycURL) that have been used to access any organization on the server was incorrectly included in all three export types, regardless of if they were used to access the exported organization or not. The "public data" and "with consent" exports metadata including the titles of some topics in private channels which the administrator otherwise did not have access to, and none of the users consented to exporting and metadata for which users were in a group DM together. This vulnerability is fixed in 10.0.

Affected configurations

• zulip zulip server (>= 2.1.0 < 10.0)

Related

Weakness · CWE (1)

  • CWE-497 Exposure of Sensitive System Information to an Unauthorized Control Sphere weakness

References