Race Condition Vulnerability in WARP-Clash-API by vvbbnn00
CVE-2026-90505

2.3LOW

Key Information:

Vendor

Vvbbnn00

Status
Warp-clash-api
Vendor
CVE Published:
13 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90505?

A race condition vulnerability exists in WARP-Clash-API, specifically affecting the doUpdateLicenseKey function. This flaw enables attackers to manipulate the software remotely, but requires a high level of complexity to exploit. The absence of versioning makes it difficult to categorize specific affected releases. Notably, the vendor has not responded to the disclosure, and the vulnerability only affects products that are no longer supported. Consequently, this situation requires urgent attention from users still operating the affected software.

Affected Version(s)

WARP-Clash-API c7bf2360073959861219b422e51ae86411051b46

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-2026-90505 - Proof of Concept

References

https://vuldb.com/vuln/403093
vdb-entrytechnical-description
https://vuldb.com/vuln/403093/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90505
third-party-advisory

CVSS V4

Score:
2.3
Severity:
LOW
Confidentiality:
Low
Integrity:
Low
Availability:
Low
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

Galaxyn (VulDB User)
VulDB CNA Team
.