# CVE-2026-116817: OpenPanel before 3.0.0 Missing Authentication on Worker Bull Board

Status: published. Published: 2026-10-26. Updated: 2026-11-02.

OpenPanel before 3.0.0 contains a missing authentication vulnerability that allows unauthenticated attackers to access the Bull Board dashboard served on the worker HTTP port. Attackers can query /api/queues and call mutating Bull Board APIs to add, retry, or clean jobs and read queue data, metrics, and datastore health.

## 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/fb0b56977c82aa1ade61449df86726b0c1490f54
- 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/193e1e3ae01aa5208b3bee754ddee2c7ce33b38d

## 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: 6.9 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 6.5 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: 0.27% as of 2026-11-02; percentile 19.14%

- SSVC: exploitation poc; automatable yes; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-306

## Exploit evidence

- exploit: https://github.com/Openpanel-dev/openpanel/security/advisories/GHSA-r627-6vrh-65p9 (ADP: CISA-ADP)

## References

- https://github.com/Openpanel-dev/openpanel/security/advisories/GHSA-r627-6vrh-65p9 (CNA: VulnCheck; vendor-advisory)

- https://github.com/Openpanel-dev/openpanel/commit/fb0b56977c82aa1ade61449df86726b0c1490f54 (CNA: VulnCheck; patch)

- https://github.com/Openpanel-dev/openpanel/commit/193e1e3ae01aa5208b3bee754ddee2c7ce33b38d (CNA: VulnCheck; patch)

- https://www.vulncheck.com/advisories/openpanel-before-3.0.0-missing-authentication-on-worker-bull-board (CNA: VulnCheck; third-party-advisory)

- https://github.com/Openpanel-dev/openpanel/security/advisories/GHSA-r627-6vrh-65p9 (ADP: CISA-ADP; exploit)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-116817; retrieved 2026-11-02; source updated 2026-11-02

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-116817; retrieved 2026-11-02; source updated Not reported

Revision: 534f01290cc2c3823c41c18ec20716eaedc58f3b9e3e6a509ad37806afee5c17

Canonical: https://y2.dev/cve/CVE-2026-116817

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