Public proof of conceptFix available

CVE-2026-31829

Q: Is CVE-2026-31829 actively exploited?

A proof-of-concept exploit exists for CVE-2026-31829, but active exploitation has not been confirmed at this time.

Q: What is the CVSS score for CVE-2026-31829?

CVE-2026-31829 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

A public proof of concept exists; no exploitation attested.

Published2026-03-10
Fixed in3.0.13
WeaknessCWE-918

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

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.0.13, Flowise exposes an HTTP Node in AgentFlow and Chatflow that performs server-side HTTP requests using user-controlled URLs. By default, there are no restrictions on target hosts, including private/internal IP ranges (RFC 1918), localhost, or cloud metadata endpoints. This enables Server-Side Request Forgery (SSRF), allowing any user interacting with a publicly exposed chatflow to force the Flowise server to make requests to internal network resources that are inaccessible from the public internet. This vulnerability is fixed in 3.0.13.

Timeline

dates in UTC

2026-03-1022:16CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-25 15:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-31829?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-31829?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV

Flowiseai flowise

Branch	Affected	Fixed in	Source
3.0	< 3.0.13	3.0.13	NVD · OSV

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

Fix

Update Flowiseai flowise to 3.0.13

Advisories and patches

github.comMitigation · Vendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionpoc2026-03-11
OpenCVESSVC decisionpoc—
CNACVSS 3.17.1read 2026-10-23
NVDCVSS 3.18.8read 2026-10-23
CNAweakness (CWE)CWE-918read 2026-10-23
FIRST EPSSEPSS score2.4 %2026-10-25
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: 2026-03-10
Last Modified: 2026-06-17
NVD status: Analyzed

Frequently asked questions

What is CVE-2026-31829?

Is CVE-2026-31829 actively exploited?

A proof-of-concept exploit exists for CVE-2026-31829, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-31829?

CVE-2026-31829 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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