CVE-2025-62795Public exploitNetwork attack vector

LDAP credential exposure via unchecked WebSocket messages

Published Oct 30, 2025 · Updated Oct 30, 2025

Incorrect authorization in JumpServer 3.x before 3.10.21-lts and 4.x before 4.10.12-lts allows remote authenticated users to expose LDAP credentials. The /ws/ldap/ WebSocket handler accepts crafted JSON from low-privileged accounts and invokes privileged LDAP testing or synchronization without an administrative permission check. An LDAP configuration must exist; a crafted test can send stored bind credentials to an attacker-controlled LDAP host, while synchronization messages can trigger unintended user imports.

CVSS severity7.1
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Incorrect authorization in JumpServer 3.x before 3.10.21-lts and 4.x before 4.10.12-lts allows remote authenticated users to expose LDAP credentials. The /ws/ldap/ WebSocket handler accepts crafted JSON from low-privileged accounts and invokes privileged LDAP testing or synchronization without an administrative permission check. An LDAP configuration must exist; a crafted test can send stored bind credentials to an attacker-controlled LDAP host, while synchronization messages can trigger unintended user imports.

The record

CVE
CVE-2025-62795
Published
Oct 30, 2025
Updated
Oct 30, 2025
Vendor
JumpServer
Product
JumpServer
Classifications
CWE-863
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 30, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 3.10.21-lts
  2. Affected versionversion=>= 4.0.0, < 4.10.12-lts

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

JumpServer · JumpServerversion=< 3.10.21-lts; version=>= 4.0.0, < 4.10.12-lts

Published CVSS scores

7.1GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-863Incorrect Authorization

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo