// For flags

CVE-2022-24751

Race condition in Zulip

Severity Score

7.4
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Zulip es una aplicación de chat de grupo de código abierto. A partir de la versión 4.0 y versiones anteriores a 4.11, Zulip es vulnerable a una condición de carrera durante la deshabilitación de la cuenta, donde un acceso simultáneo por parte del usuario que está siendo deshabilitado puede, en raros casos, permitir el acceso continuo por parte del usuario deshabilitado. Se presenta un parche disponible en versión 4.11 en la rama 4.x y en versión 5.0-rc1 en la rama 5.x. Una actualización a una versión corregida deshabilitará, como efecto secundario, cualquier sesión en caché que pueda haberse filtrado mediante este bug. Actualmente no se presentan medidas de mitigación conocidas

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-02-10 CVE Reserved
  • 2022-03-16 CVE Published
  • 2024-08-03 CVE Updated
  • 2025-04-13 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Zulip
Search vendor "Zulip"
 Zulip
Search vendor "Zulip" for product "Zulip"
 >= 4.0 < 4.11
Search vendor "Zulip" for product "Zulip" and version " >= 4.0 < 4.11"
-
Affected