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.
References7
- github.com/databufflabs/databuff
- github.com/databufflabs/databuff/blob/v0.1.10/ai-apm-web/src/ma…
- github.com/databufflabs/databuff/blob/v0.1.10/ai-apm-web/src/ma…
- github.com/databufflabs/databuff/blob/v0.1.10/ai-apm-web/src/ma…
- hackmd.io/@hieuPenguinnn/databuff-default-jwt-secret-auth-bypass
- www.vulncheck.com/advisories/databuff-ai-apm-web-through-0.1.10…
- hackmd.io/@hieuPenguinnn/databuff-default-jwt-secret-auth-bypass
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 4.0
-
9.3
CRITICAL
Score source: CNA
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 - EPSS — exploit probability
- 1% percentile: 49 · as of 10 November 2026
- CWE
- CWE-321
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.