CVE-2026-100681

Budibase before 3.45.0 contains an unauthenticated server-side request forgery and credential exfiltration vulnerability in the Microsoft Teams webhook endpoint that accepts forged Bot Framework activities with arbitrary serviceUrl values. Attackers can submit a crafted POST request to inject an attacker-controlled serviceUrl that is persisted and used for all subsequent bot replies, causing the server to send live Microsoft OAuth access tokens in Authorization headers to the attacker's host and enabling blind internal network access.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/Budibase/budibase/security/advisories/GHSA-942w-fccr-8r3c
https://www.vulncheck.com/advisories/budibase-before-3.45.0-ssrf-and-oauth-token-exfiltration-via-teams-webhook
https://github.com/Budibase/budibase/security/advisories/GHSA-942w-fccr-8r3c

Configurations

No configuration.

History

30 Sep 2026, 18:18

Type	Values Removed	Values Added
References	~~() https://github.com/Budibase/budibase/security/advisories/GHSA-942w-fccr-8r3c -~~	() https://github.com/Budibase/budibase/security/advisories/GHSA-942w-fccr-8r3c -

26 Sep 2026, 14:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-26 14:16

Updated : 2026-10-08 16:16

NVD link : CVE-2026-100681

Mitre link : CVE-2026-100681

CVE.ORG link : CVE-2026-100681

JSON object : View

Products Affected

No product.

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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