CVE-2026-46442
Exploitation reported by one source. First attested on 2026-07-17 by GCVE · kevintel.
- Published2026-06-08
- Fixed in3.1.2
- WeaknessCWE-94
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, POST /api/v1/node-custom-function lacks route-level authorization, allowing any authenticated user or API key to submit arbitrary JavaScript to the Custom JS Function node. When E2B_APIKEY is not configured — the common deployment case — Flowise executes this code inside a NodeVM sandbox. This sandbox can be escaped, allowing an attacker to reach the host process object and execute system commands via child_process. The result is authenticated remote code execution on the Flowise server host. This issue has been patched in version 3.1.2.
Timeline
dates in UTC- 2026-06-0816:16CVE publishedNVD
- 2026-07-1707:51Listed as exploited by GCVEGCVE
- 2026-07-1707:51Exploitation first reportedGCVE
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-46442?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-46442?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 3.1 | < 3.1.2 | 3.1.2 | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- Update Flowiseai flowise to 3.1.2
Advisories and patches
- github.comRelease Notes
- github.comMitigation · Vendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
Sources
- GCVEexploitation2026-07-17
- CISA-ADPSSVC decisionpoc2026-06-09
- OpenCVESSVC decisionpoc—
- CNACVSS 4.09.4read 2026-10-23
- NVDCVSS 3.19.9read 2026-10-23
- CNAweakness (CWE)CWE-94read 2026-10-23
- FIRST EPSSEPSS score3.4 %2026-10-22
- PoC-in-GitHubproof of concept1—
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- CVSS 4.0 vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Published
- 2026-06-08
- Last Modified
- 2026-07-23
- NVD status
- Analyzed
Frequently asked questions
What is CVE-2026-46442?
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.