TI-2026-80976 Aliases CVE-2026-116811 GHSA-r85r-mvjp-f5x7

Sandbox escape in OpenPanel webhook JavaScript templates allows code execution

HIGH 73CWE-94Published 2026-10-26 · Updated 2026-10-31

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-94.

Summary

OpenPanel versions from 0 before 3.0.0 contain a sandbox escape in the js-runtime validator. A project member with write access can bypass the AST allowlist by aliasing the Function constructor, which is a code injection flaw (CWE-94). An attacker with low privileges can run arbitrary code in the worker process over the network without user interaction.

Written with Claude Haiku 5.5 from the sources below · 2026-10-31

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00494 42nd percentileScored 2026-11-07

Fix Fixed openpanel (Openpanel-dev): 3.0.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Openpanel-dev	openpanel	before 3.0.0	3.0.0	Patch available	CNA

openpanel VendorOpenpanel-dev Affected before 3.0.0 Fixed in 3.0.0 Patch available CNA

Remediation

OpenPanel users should upgrade openpanel to version 3.0.0, which is the fixed version.

Written with Claude Haiku 5.5 from the sources below · 2026-10-31

Fix · CNA openpanel (Openpanel-dev) Fixed in 3.0.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-10-26
Openpanel-dev openpanel 3.0.0
14 records Highest priority Priority HIGH 4 HIGH, 4 MEDIUM, 6 LOW
Other records, highest priority first
- TI-2026-80973 SQL injection in OpenPanel ClickHouse query lets users read other tenants' dataPriority HIGH 72
- TI-2026-80981 Missing authentication in OpenPanel Bull Board worker dashboardPriority HIGH 70
- TI-2026-80975 Missing authorization in OpenPanel exposes project chart annotationsPriority HIGH 70
Show all 14 records →

Timeline

2026-10-26 Threatist record created from CVE-2026-116811
2026-10-27 Alias added: GHSA-r85r-mvjp-f5x7
2026-10-27 Priority changed: MEDIUM → LOW
2026-10-31 CISA SSVC decision points changed
2026-10-31 Priority changed: LOW → HIGH

References

Patch 1

https://github.com/Openpanel-dev/openpanel/commit/42fc8623b5c5c30f0b89686451c0c5ab13046b81

Advisory 1

GitHub Security Advisory (GHSA-mc99-9jf5-22cq)

TI-2026-63244 OpenPanel js-runtime through 2.3.0 JavaScript Template Sandbox Escape RCE CVSS 4.0CRITICAL 9.4
TI-2026-80973 SQL injection in OpenPanel ClickHouse query lets users read other tenants' data CVSS 4.0HIGH 8.6
TI-2026-80981 Missing authentication in OpenPanel Bull Board worker dashboard CVSS 4.0MEDIUM 6.9
TI-2026-80975 Missing authorization in OpenPanel exposes project chart annotations CVSS 4.0MEDIUM 6.9
TI-2026-63243 OpenPanel API through 2.3.0 Authentication Bypass via Unverified Client Secret CVSS 4.0MEDIUM 6.9
TI-2026-58738 OpenPanel before 2.3.0 Unauthenticated XSS via SVG Favicon Proxy CVSS 4.0HIGH 8.4

See all 31 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences