High severity · published Oct 30, 2025
CVE-2025-62795
JumpServer Unauthorized LDAP Configuration Access via WebSocket
7.1
CVSS
0.3%
EPSS
No
On KEV
Description
JumpServer is an open source bastion host and an operation and maintenance security audit system. Prior to v3.10.21-lts and v4.10.12-lts, a low-privileged authenticated user can invoke LDAP configuration tests and start LDAP synchronization by sending crafted messages to the /ws/ldap/ WebSocket endpoint, bypassing authorization checks and potentially exposing LDAP credentials or causing unintended sync operations. This vulnerability is fixed in v3.10.21-lts and v4.10.12-lts.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 21% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JU
jumpserver · jumpserver
< 3.10.21-lts; >= 4.0.0, < 4.10.12-lts · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-62795
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-62795
Exploit
https://github.com/jumpserver/jumpserver/security/advisories/GHSA-7893-256g-m822
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