Critical 9.8Published Oct 16, 2026

CVE-2026-111692DataBuff ai-apm-web through 0.1.10 Authentication Bypass via Hardcoded HMAC Secret

Updated under an hour ago (Oct 28, 2026, 7:00 AM ET)

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It affects databufflabs databuff. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.61%, higher than 49% of scored CVEs.

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Exploited in the last 30 days

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: 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-321
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.61% (percentile 49)
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Oct 16, 2026
First seen by InfoSec Signals: Oct 16, 2026

Affected products

Affected products

databufflabs databuff databufflabs:databuff (from the name)	through 0.1.10	CNA record

References

References

https://hackmd.io/@hieuPenguinnn/databuff-default-jwt-secret-auth-bypass	third-party-advisory
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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.