CVE-2026-108899: Access Control Flaw (CVSS 7.3)

Description

A flaw has been found in tobychui zoraxy up to 3.3.4. This impacts the function handleBasicAuth of the file mod/dynamicproxy/authProviders.go of the component Path Exception Matcher. This manipulation of the argument PathPrefix causes improper authorization. It is possible to initiate the attack remotely. The exploit has been published and may be used. Upgrading to version 3.3.5-rc1 will fix this issue. Patch name: 37cd0f27b17cd15cfa4af409bfec943146f5fdfe. Upgrading the affected component is advised.

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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

0.0058

Probability of exploitation

0.47%

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-266 CWE-266

CWE-285 CWE-285

References

Other References

https://github.com/carfeii/oss/blob/main/zoraxy.md#finding-1-path-exception-rules-for-basic-auth-zorxauth-and-captcha-match-on-raw-string-prefix-not-a-path-boundary https://github.com/tobychui/zoraxy/ https://github.com/tobychui/zoraxy/commit/37cd0f27b17cd15cfa4af409bfec943146f5fdfe https://github.com/tobychui/zoraxy/pull/1291 https://github.com/tobychui/zoraxy/releases/tag/v3.3.5-rc1 https://vuldb.com/cve/CVE-2026-108899 https://vuldb.com/submit/976047 https://vuldb.com/vuln/416690 https://vuldb.com/vuln/416690/cti

Frequently Asked Questions

What is CVE-2026-108899? +

A flaw has been found in tobychui zoraxy up to 3.3.4. This impacts the function handleBasicAuth of the file mod/dynamicproxy/authProviders.go of the component Path Exception Matcher. This manipulation of the argument PathPrefix causes improper authorization. It is possible to initiate the attack remotely. The exploit has been published and may be used. Upgrading to version 3.3.5-rc1 will fix this issue. Patch name: 37cd0f27b17cd15cfa4af409bfec943146f5fdfe. Upgrading the affected component is advised. It has a CVSS v3.1 base score of 7.3 (HIGH).

How severe is CVE-2026-108899? +

CVE-2026-108899 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 0.0058, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-108899? +

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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