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.
Published: 2026-10-16
Score: 9.3 Critical
EPSS: < 1% Very Low
KEV: No
Impact: Unauthorized Administrative Access
Action: Immediate Patch
AI Analysis

Impact

DataBuff ai‑apm‑web version 0.1.10 contains an authentication bypass flaw that lets attackers forge JWT tokens using a hardcoded HMAC secret found in JwtTokenService. By signing an admin payload with the default dev-secret, an unauthenticated user can obtain a valid admin session token. This breaks authentication, giving full administrative access to protected /webapi routes, including the Doris SQL query API, and undermines confidentiality, integrity, and availability. The weakness is a hard‑coded cryptographic key and is identified as a CWE‑321 issue.

Affected Systems

The vulnerability affects databuff labs’ DataBuff ai‑apm‑web product, specifically the 0.1.10 release. No other versions are listed as affected in the available data.

Risk and Exploitability

The CVSS score of 9.3 indicates critical severity. Because the secret is embedded in the source code and no additional authentication is required, the EPSS is not available but the exploitability is high: an attacker can craft a JWT offline and send it to any exposed /webapi endpoint. The vulnerability is not yet listed in the CISA KEV catalog, but the ease of token forgery makes it a high‑risk issue that could be exploited remotely without prior access.

Generated by OpenCVE AI on October 16, 2026 at 19:06 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade to the latest version of DataBuff ai‑apm‑web that removes the hardcoded HMAC secret or implements a configurable key mechanism.
  • If an immediate upgrade is not possible, update the JwtProperties or application.yml file to use a strong, unique HMAC secret, then restart the service; this serves as a temporary mitigation.
  • Additionally, restrict network access to the /webapi routes using firewall rules or reverse‑proxy authentication to limit exposure to trusted hosts.

Generated by OpenCVE AI on October 16, 2026 at 19:06 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Mon, 19 Oct 2026 13:15:00 +0000

Type Values Removed Values Added
First Time appeared Databufflabs
Databufflabs databuff
Vendors & Products Databufflabs
Databufflabs databuff

Fri, 16 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Fri, 16 Oct 2026 17:45:00 +0000

Type Values Removed Values Added
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.
Title DataBuff ai-apm-web through 0.1.10 Authentication Bypass via Hardcoded HMAC Secret
Weaknesses CWE-321
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': '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'}

Subscriptions

Databufflabs Databuff
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-16T19:06:45.355Z

Reserved: 2026-10-16T14:31:20.594Z

Link: CVE-2026-111692

cve-icon Vulnrichment

Updated: 2026-10-16T19:06:39.269Z

cve-icon NVD

Status : Deferred

Published: 2026-10-16T18:17:52.633

Modified: 2026-10-16T20:17:22.490

Link: CVE-2026-111692

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-19T12:53:55Z

Weaknesses
  • CWE-321

    Use of Hard-coded Cryptographic Key