CVE-2026-108899 json
tobychui zoraxy Path Exception Matcher authProviders.go handleBasicAuth improper authorization
published 28d ago modified 27d ago also EUVD-2026-97488
- cvss
- 7.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 39%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- tobychui zoraxy 3.3.5-rc1
- github.com/tobychui/zoraxy@37cd0f2 commit
- github.com/tobychui/zoraxy#1291 pull request
- github.com/tobychui/zoraxy/releases/tag/v3.3.5-rc1 release
Is CVE-2026-108899 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 27d ago
Exploit prediction
0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- github.com 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 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P |
| CNA | 3.1 | 7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C |
| CNA | 3.0 | 7.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C |
| CNA | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C |
| CNA | 4.0 | 5.5 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| CNA | 3.1 | 7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
| CNA | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- tobychui zoraxy
Classification
References
-
github.com
/tobychui/zoraxy/pull/1291
issue-tracking, patch
-
github.com
/tobychui/zoraxy/commit/37cd0f27b17cd15cfa4af409bfec943146f5fdfe
patch
-
github.com
/tobychui/zoraxy/releases/tag/v3.3.5-rc1
patch
-
github.com
/carfeii/oss/blob/main/zoraxy.md#finding-1-path-exception-rules-for-basic-auth-zorxauth-and-captcha-match-on-r
exploit
-
vuldb.com
/vuln/416690
vdb-entry, technical-description
-
vuldb.com
/vuln/416690/cti
signature, permissions-required
-
vuldb.com
/cve/CVE-2026-108899
third-party-advisory
-
vuldb.com
/submit/976047
third-party-advisory
-
github.com
/tobychui/zoraxy/
product
Sources
- CVE List CVE-2026-108899
- NVD CVE-2026-108899
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.