CVE-2024-56136CWE-200

/api/v1/jwt/fetch_api_key endpoint can leak if an email address has an account in Zulip server

Medium · published January 16, 2025

CVSS v4.0
6.9
EPSS
1%
Percentile
46.5
In the wild
Unconfirmed
What it is

Zulip server provides an open-source team chat that helps teams stay productive and focused. Zulip Server 7.0 and above are vulnerable to an information disclose attack, where, if a Zulip server is hosting multiple organizations, an unauthenticated user can make a request and determine if an email address is in use by a user. Zulip Server 9.4 resolves the issue, as does the `main` branch of Zulip Server. Users are advised to upgrade. There are no known workarounds for this issue.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00571 · 46.5th percentile
Weakness
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
Published
2025-01-16T19:25Z
EPSS history
Timeline
  • 16 JAN 19:25Z
    /api/v1/jwt/fetch_api_key endpoint can leak if an email address has an account in Zulip server
    cvelistv5