Home/CVE/Zulip is an open source group chat application. Starting with version 4.0 and prior to version 4.11, Zulip is vulnerable
CVE

CVE-2022-24751

Zulip is an open source group chat application. Starting with version 4.0 and prior to version 4.11, Zulip is vulnerable

Zulip is an open source group chat application. Starting with version 4.0 and prior to version 4.11, Zulip is vulnerable to a race condition during account deactivation, where a simultaneous access by the user being deactivated may, in rare cases, allow continued access by the deactivated user. A patch is available in version 4.11 on the 4.x branch and version 5.0-rc1 on the 5.x branch.

Upgrading to a fixed version will, as a side effect, deactivate any cached sessions that may have been leaked through this bug. There are currently no known workarounds.

MEDIUM · CVSS 5.4 EPSS 0.00204
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
▤

Affected Products & Versions

1
zulip>= 4.0 and < 4.11
▣

Scoring & Timeline

5.4
MEDIUM · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD16 Mar 2022 · 02:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/zulip/zulip/commit/62ba8e455d8f460001d9fb486a6dabfd1ed67717PatchThird Party Advisory
https://github.com/zulip/zulip/commit/e6eace307ef435eec3395c99247155efed9219e4PatchThird Party Advisory
https://github.com/zulip/zulip/security/advisories/GHSA-6v98-m5x5-phqjThird Party Advisory
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