CVE-2026-90504: Auth Bypass (CVSS 7.3)

Description

A vulnerability has been found in vvbbnn00 WARP-Clash-API up to c7bf2360073959861219b422e51ae86411051b46. The impacted element is the function authorized. The manipulation of the argument SECRET_KEY leads to missing authentication. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.

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CVSS v3.1 Score

7.3

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

EPSS — Exploit Prediction

0.0063

Probability of exploitation

0.48%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-287 Improper Authentication

CWE-306 Missing Authentication

References

Other References

https://gist.github.com/Galaxync/b90734d80bf32e8145e46fbc326d6729 https://vuldb.com/cve/CVE-2026-90504 https://vuldb.com/submit/895263 https://vuldb.com/vuln/403092 https://vuldb.com/vuln/403092/cti

Frequently Asked Questions

What is CVE-2026-90504? +

A vulnerability has been found in vvbbnn00 WARP-Clash-API up to c7bf2360073959861219b422e51ae86411051b46. The impacted element is the function authorized. The manipulation of the argument SECRET_KEY leads to missing authentication. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer. It has a CVSS v3.1 base score of 7.3 (HIGH).

How severe is CVE-2026-90504? +

CVE-2026-90504 has a CVSS v3.1 score of 7.3 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0063, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-90504? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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