OpenPanel before 3.0.0 contains a sandbox escape vulnerability in the js-runtime validator that allows a project
Affects openpanelSource GCVE Database
Not known to be exploited · CVSS 8.7 High : upgrade to 3.0.0 soon.
Data as of 27 Oct 2026, 01:58 UTC
- Patch
- Available – fixed in 3.0.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 26 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade openpanel-dev/openpanel to 3.0.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubopenpanel-dev/openpanelpkg:github/openpanel-dev/openpanelOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix is available in OpenPanel version 3.0.0 and later. Users should upgrade to version 3.0.0 or higher to remediate this vulnerability. No other mitigation guidance is provided.
Description
OpenPanel versions prior to 3.0.0 have a sandbox escape vulnerability in the JavaScript runtime validator. This flaw allows a project member with write access to bypass the AST allowlist by aliasing the Function constructor, enabling arbitrary code execution within the worker process. The vulnerability has a high severity score of 8.8 CVSS v3.1.
References
- github.com/Openpanel-dev/openpanel/security/advisories/GHSA-mc99-9jf5-22cq (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-116811 (opens in a new tab)
- github.com/Openpanel-dev/openpanel/commit/42fc8623b5c5c30f0b89686451c0c5ab13046b81 (opens in a new tab)
- vulncheck.com/advisories/openpanel-before-3.0.0-sandbox-escape-rce-via-webhook-javascript-template (opens in a new tab)