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ExploitedNot in CISA KEV yet

CVE-2025-55346

Exploitation confirmed. First attested on 2025-11-19 by GCVE · kevintel, GCVE · shadowserver.

  • Published2025-08-14
  • WeaknessCWE-94

Am I 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

User-controlled input flows to an unsafe implementation of a dynamic Function constructor, allowing network attackers to run arbitrary unsandboxed JS code in the context of the host, by sending a simple POST request.

Timeline

dates in UTC
  1. 2025-08-1410:15CVE publishedNVD
  2. 2025-11-1922:59Listed as exploited by GCVEGCVE
  3. 2025-11-1922:59Exploitation first reportedGCVE

Versions per branch

OSV
flowise
BranchAffectedFixed in
2.2≤ 2.2.7-patch.1no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As JFROG, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-08-14

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVE recordread 2026-10-23
  • GCVEexploitation2025-11-19
  • CISA-ADPSSVC decisionpoc2025-08-14
  • CNACVSS 3.19.8known since 2026-10-23
  • CNAweakness (CWE)CWE-94known since 2026-10-23
  • FIRST EPSSEPSS score23.8 %read 2026-11-09
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryCRITICAL2025-10-06

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2025-08-14
Last Modified
2026-06-17
NVD status
Deferred
GitHub Advisory
GHSA-hmgh-466j-fx4c GHSA-q4xx-mc3q-23x8

Frequently asked questions

What is CVE-2025-55346?

User-controlled input flows to an unsafe implementation of a dynamic Function constructor, allowing network attackers to run arbitrary unsandboxed JS code in the context of the host, by sending a simple POST request.

Is CVE-2025-55346 actively exploited?

A proof-of-concept exploit exists for CVE-2025-55346, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2025-55346?

CVE-2025-55346 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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