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CVE-2026-116819 — Openpanel-dev

HIGHFix: Openpanel-dev/openpanel@071c736

CVE-2026-116819 is a high-severity (CVSS 8.5) Information Exposure vulnerability. No vendor fix is recorded yet; mitigation options are listed below.

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…

Published
Updated
Affected
—
Patched
See advisory
Exploits
None indexed
Exploitation data as of Oct 27, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs23th percentile — riskier than 23% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2026-116819 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 396,257 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

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.

Detection & mitigation playbook

Vulnerability

  1. Detect

    Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

  2. Remediation status

    No fixed release is recorded for CVE-2026-116819 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    Assume what was exposed is already known: rotate any credential, token or key that the affected component could return, restrict the endpoint to callers that genuinely need it, and strip sensitive fields from responses and error output at the boundary rather than relying on the client not to read them.

Frequently Asked Questions

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.
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CVE-2026-116819: Openpanel-dev (High 8.5)