Brute-force Vulnerability in Harness Login Endpoint
CVE-2025-10761

6.3MEDIUM

Key Information:

Vendor

Harness

Status
Harness
Vendor
CVE Published:
21 September 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-10761?

A vulnerability exists in the Harness Login Endpoint within the 3.3.0 version that permits excessive authentication attempts without adequate restrictions. This allows malicious actors to exploit the endpoint and potentially carry out brute-force attacks, attempting to gain unauthorized access remotely. Despite the high complexity associated with executing such attacks, the public disclosure of this vulnerability raises significant security concerns. The vendor was notified about the issue, but no response has been received, leaving users at risk.

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Affected Version(s)

Harness 3.3.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-10761 - Proof of Concept

References

https://vuldb.com/?id.325116
vdb-entry
https://vuldb.com/?ctiid.325116
signaturepermissions-required
https://vuldb.com/?submit.646871
third-party-advisory

CVSS V4

Score:
6.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Yu_Bao (VulDB User)
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