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Back to active CVEs
High · CVSS 8.7CVE-2026-116811

OpenPanel before 3.0.0 Sandbox Escape RCE via Webhook JavaScript TemplateCVE-2026-116811

Answer in brief

CVE-2026-116811 records a High severity (CVSS 8.7) vulnerability in OpenPanel before 3.0.0 Sandbox Escape RCE via Webhook JavaScript Template. The current sources do not mark it as known exploited. The current feed maps Openpanel-dev/openpanel (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 26, 2026Updated Oct 26, 2026Source checked Oct 27, 2026First seen by HOL Oct 26, 2026Material review Oct 26, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.7
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 8.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Openpanel-dev/openpanel (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Openpanel-dev/openpanelgeneric>=0 <3.0.03.0.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Openpanel-dev/openpanel.
  2. 2Review the reported fix. Update Openpanel-dev/openpanel to 3.0.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 26, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 26, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 26, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source description

OpenPanel before 3.0.0 contains a sandbox escape vulnerability in the js-runtime validator that allows a project member to bypass the AST allowlist by aliasing the Function constructor. Attackers with write access can read payload.constructor.constructor into a local and call it to run arbitrary code in the worker process.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • OpenPanel before 3.0.0 Information Disclosure of Ingestion Secret Hashes via client.listSame openpanel-dev/openpanel package
  • OpenPanel before 3.0.0 Privilege Escalation via onboarding.project tRPC MutationSame openpanel-dev/openpanel package
  • OpenPanel before 3.0.0 ClickHouse SQL Injection via event.events tRPC QuerySame openpanel-dev/openpanel package
  • OpenPanel before 3.0.0 ClickHouse SQL Injection via profile.valuesSame openpanel-dev/openpanel package
  • OpenPanel before 3.0.0 Missing Authorization in event.bots tRPC ProcedureSame openpanel-dev/openpanel package
  • OpenPanel before 3.0.0 Missing Authorization via reference.getChartReferencesSame openpanel-dev/openpanel package

Record context

Vulnerability class
RCE
EPSS
Not reported
CWE IDs
CWE-94
Source
CVE List V5
Source checked
Oct 27, 2026
References
3 linked sources
Open source record