Authentication Bypass in DataBuff ai-apm-web Product by DataBuff Labs
CVE-2026-111692

9.3CRITICAL

Key Information:

Vendor

Databufflabs

Status
Databuff
Vendor
CVE Published:
16 October 2026

What is CVE-2026-111692?

DataBuff ai-apm-web up to version 0.1.10 is susceptible to an authentication bypass vulnerability. This flaw allows unauthenticated attackers to forge admin session tokens using a hardcoded HMAC secret found in the JwtTokenService. By signing a payload with the default development secret, attackers can gain unauthorized access to administrative privileges, including access to sensitive web API routes and the Doris SQL query API. Immediate action is advised to secure affected installations and prevent potential exploitation.

Affected Version(s)

databuff 0 <= 0.1.10

References

https://hackmd.io/@hieuPenguinnn/databuff-default-jwt-sec...
third-party-advisory
https://github.com/databufflabs/databuff/blob/v0.1.10/ai-...
technical-description
https://github.com/databufflabs/databuff/blob/v0.1.10/ai-...
technical-description

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

hieuPenguinnn
.