CVE-2026-120442 json
ape-volo-admin before 3.6.1 Hardcoded JWT Signing Key Authentication Bypass
published 7d ago modified 4d ago also EUVD-2026-115202
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.7%
- EPSS 1.7% chance of exploitation in 30 days, percentile 77%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
ape-volo-admin before 3.6.1 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge administrator tokens using a hardcoded JWT signing key in appsettings.json. Attackers can sign tokens offline with the jti claim set to the seeded administrator id to gain full API control over users, roles, permissions and data.
Patch / fix
- xianhc ape-volo-admin 3.6.1
Is CVE-2026-120442 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
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 4d ago
Exploit prediction
1.71% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- Nuclei template ape-volo-admin <= 3.5.2 - Authentication Bypass via Hardcoded JWT Signing Key nuclei detection template
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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 |
Affected products
- xianhc ape-volo-admin
Classification
- Weakness
-
- CWE-1394 Use of Default Cryptographic Key
References
-
github.com
/xianhc/ape-volo-admin/commit/938f7ec58047f0c63123dc155d6a033910f00933
patch
-
github.com
/xianhc/ape-volo-admin/issues/36
issue-tracking
-
github.com
/xianhc/ape-volo-admin/releases/tag/V3.6.1
release-notes
-
github.com
/xianhc/ape-volo-admin/blob/V3.5.2/Ape.Volo.Api/appsettings.json#L4-L10
technical-description
-
github.com
/xianhc/ape-volo-admin/blob/V3.5.2/Ape.Volo.Infrastructure/Extensions/AuthorizationExtensions.cs#L50-L60
technical-description
-
github.com
/xianhc/ape-volo-admin/blob/V3.5.2/Ape.Volo.Infrastructure/Authentication/PermissionHandler.cs#L130-L172
technical-description
-
hackmd.io
/@hieuPenguinnn/ape-volo-admin-hardcoded-jwt-secret-admin-token-forgery
technical-description
-
vulncheck.com
/advisories/ape-volo-admin-before-3.6.1-hardcoded-jwt-signing-key-authentication-bypass
third-party-advisory
Sources
- CVE List CVE-2026-120442
- NVD CVE-2026-120442
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.