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PatchSiren cyber security CVE debrief

CVE-2026-90504 vvbbnn00 CVE debrief

A vulnerability was found in the WARP-Clash-API project, affecting the function's authorized argument SECRET_KEY, which leads to missing authentication. The attack can be initiated remotely, and the exploit has been disclosed to the public. The product uses continuous delivery with rolling releases, so no version details of affected or updated releases are available. The vendor did not respond to early disclosure.

Vendor
vvbbnn00
Product
WARP-Clash-API
CVSS
MEDIUM 5.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-13
Original CVE updated
2026-09-21
Advisory published
2026-09-13
Advisory updated
2026-09-21

Who should care

Defenders and security teams using the WARP-Clash-API function should assess exposure and prioritize verification in their inventory. They should also review and update incident response plans if necessary and monitor for potential exploitation attempts. Defenders should prioritize verifying exposure in their inventory, especially for systems using the impacted WARP-Clash-API function.

Why it matters

Defenders should prioritize verifying exposure in their inventory, especially for systems using the impacted WARP-Clash-API function, and assess the need for compensating controls or monitoring.

  • Verify exposure in inventory and assess compensating controls
  • Review and update incident response plans if necessary
  • Monitor for potential exploitation attempts

Technical summary

The WARP-Clash-API project is vulnerable to missing authentication due to improper handling of the SECRET_KEY argument in the authorized function. This allows for remote attacks. The vulnerability affects the WARP-Clash-API project, specifically the authorized function's SECRET_KEY argument, leading to missing authentication. Defenders should prioritize verifying exposure in their inventory, especially for systems using the impacted WARP-Clash-API function, and assess the need for compensating controls or monitoring.

Defensive priority

Defenders should prioritize verifying exposure in their inventory, especially for systems using the impacted WARP-Clash-API function.

Recommended defensive actions

  • Verify exposure in inventory, especially for systems using the impacted WARP-Clash-API function
  • Assess the need for compensating controls or monitoring
  • Review and update incident response plans if necessary
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
  • Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
  • Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record and NVD vulnerability detail page provide information on the vulnerability. However, the vendor did not respond to early disclosure, and no version details of affected or updated releases are available. The vulnerability affects the WARP-Clash-API project, specifically the authorized function's SECRET_KEY argument, leading to missing authentication. Defenders should verify exposure in their inventory, especially for systems using the impacted WARP-Clash-API function.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-90504 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-90504

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-90504 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-90504

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.