Vulnerability details
CVE-2026-111692
databufflabs databuff
DataBuff ai-apm-web through 0.1.10 Authentication Bypass via Hardcoded HMAC Secret
CVSS 4.0
9.3Critical
Official description
DataBuff ai-apm-web through 0.1.10 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge admin session tokens by using the hardcoded HMAC secret in JwtTokenService. Attackers can sign a payload of admin and a future expiry with the default dev-secret to gain full administrative access to protected /webapi routes, including the Doris SQL query API.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.3Critical | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | 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 |
| 9.8Critical | 3.1 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| databufflabs | databuff | v ≤ 0.1.10 | CVEProject cvelistV5 (CNA) |
References and advisories
6- https://github.com/databufflabs/databuff/blob/v0.1.10/ai-apm-web/src/main/resources/application.yml#L54-L59 technical-description
- https://github.com/databufflabs/databuff/blob/v0.1.10/ai-apm-web/src/main/java/com/databuff/apm/web/config/JwtProperties.java#L8-L15 technical-description
- https://github.com/databufflabs/databuff/blob/v0.1.10/ai-apm-web/src/main/java/com/databuff/apm/web/auth/JwtTokenService.java#L36-L60 technical-description
- https://github.com/databufflabs/databuff product
- https://www.vulncheck.com/advisories/databuff-ai-apm-web-through-0.1.10-authentication-bypass-via-hardcoded-hmac-secret third-party-advisory
- https://hackmd.io/@hieuPenguinnn/databuff-default-jwt-secret-auth-bypass third-party-advisory
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Details
- Published
- 2026-10-16
- Last updated
- 2026-10-16
- State
- Published
- Assigner (CNA)
- VulnCheck
- Kolun priority
- 26 · Low
Exploit prediction (EPSS)
0.6%
Probability of exploitation in 30 days
49.3%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-321Use of Hard-coded Cryptographic Key