CVE-2026-18545

MEDIUM
Published August 28, 2026

IBM Langflow OSS 1.0.0 through 1.11.1 is vulnerable to server-side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other...

Full CISO analysis pending enrichment.

How severe is it?

CVSS 3.1
4.3 / 10
EPSS
N/A
Exploitation Status
No known exploitation
Sophistication
N/A

What is the attack surface?

AV AC PR UI S C I A
AV Network
AC Low
PR Low
UI None
S Unchanged
C Low
I None
A None

What should I do?

No patch available

Monitor for updates. Consider compensating controls or temporary mitigations.

Which compliance frameworks are affected?

Compliance analysis pending. Sign in for full compliance mapping when available.

Frequently Asked Questions

What is CVE-2026-18545?

IBM Langflow OSS 1.0.0 through 1.11.1 is vulnerable to server-side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.

Is CVE-2026-18545 actively exploited?

No confirmed active exploitation of CVE-2026-18545 has been reported, but organizations should still patch proactively.

How to fix CVE-2026-18545?

No patch is currently available. Monitor vendor advisories for updates.

What is the CVSS score for CVE-2026-18545?

CVE-2026-18545 has a CVSS v3.1 base score of 4.3 (MEDIUM).

What are the technical details?

Original Advisory

IBM Langflow OSS 1.0.0 through 1.11.1 is vulnerable to server-side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.

Weaknesses (CWE)

CWE-918 — Server-Side Request Forgery (SSRF): The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

Source: MITRE CWE corpus.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Timeline

Published
August 28, 2026
Last Modified
August 28, 2026
First Seen
August 28, 2026