Langflow vulnerable to Server-Side Request Forgery

published 2025-12-19 10 mo ago modified 2026-10-13 26 d ago also EUVD-2025-204584 , GHSA-5993-7p27-66g5 , PYSEC-2026-1522

cvss: 7.7; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 6.3%; EPSS 6.3% chance of exploitation in 30 days, percentile 93%
public exploits: 0; none known

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.7.0, Langflow provides an API Request component that can issue arbitrary HTTP requests within a flow. This component takes a user-supplied URL, performs only normalization and basic format checks, and then sends the request using a server-side httpx client. It does not block private IP ranges (127[.]0[.]0[.]1, the 10/172/192 ranges) or cloud metadata endpoints (169[.]254[.]169[.]254), and it returns the response body as the result. Because the flow execution endpoints (/api/v1/run, /api/v1/run/advanced) can be invoked with just an API key, if an attacker can control the API Request URL in a flow, non-blind SSRF is possible—accessing internal resources from the server’s network context. This enables requests to, and collection of responses from, internal administrative endpoints, metadata services, and internal databases/services, leading to information disclosure and providing a foothold for further attacks. Version 1.7.0 contains a patch for this issue.

Patch / fix

fixed in 3

pypi langflow 1.7.1
langflow langflow 1.7.0
langflow-ai langflow 1.7.0

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 10 mo ago (2025-12-19)

Exploit prediction

6.30% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/langflow-ai/langflow/security/advisories/GHSA-5993-7p27-66g5 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.7	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
GitHub	3.1	7.7	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
NVD	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
OSV	3.1	7.7	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
pypi	langflow	<1.7.1	1.7.1

Affected products

langflow-ai langflow

Classification

Weakness

CWE-918 Server-Side Request Forgery

References

github.com /langflow-ai/langflow/security/advisories/GHSA-5993-7p27-66g5
exploit, web, vendor-advisory
nvd.nist.gov /vuln/detail/CVE-2025-68477
advisory
github.com /langflow-ai/langflow
package
pypi.org /project/langflow
package
github.com /advisories/GHSA-5993-7p27-66g5
advisory

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary