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

Status: published. Published: 2026-10-26. Updated: 2026-11-04.

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.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/Openpanel-dev/openpanel/commit/071c736c4539c005ac32647f2cfc6dec89cfb596

## Affected products and versions

- Openpanel-dev / openpanel: ≥ 0; < 3.0.0 (affected, semver); 3.0.0 (unaffected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 8.4 (high); 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; source: CNA: VulnCheck

- CVSS 3.1: 8.5 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: 0.30% as of 2026-11-04; percentile 23.19%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-200

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/Openpanel-dev/openpanel/security/advisories/GHSA-wfrw-rm3f-52x8 (CNA: VulnCheck; vendor-advisory)

- https://github.com/Openpanel-dev/openpanel/commit/071c736c4539c005ac32647f2cfc6dec89cfb596 (CNA: VulnCheck; patch)

- https://www.vulncheck.com/advisories/openpanel-before-3.0.0-credential-disclosure-via-notification-rules-query (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-116819; retrieved 2026-11-04; source updated 2026-11-04

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-116819; retrieved 2026-11-04; source updated Not reported

Revision: d8e6bf840bdfbd142795b2c669dbe4368bc55d837d61125c6fc8e0ec6f4686b2

Canonical: https://y2.dev/cve/CVE-2026-116819

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.