CVE-2026-19304: CWE-918 Server-Side Request Forgery (SSRF) in IBM Langflow OSS
Description
IBM Langflow OSS versions 1.0.0 through 1.11.2 contain a Server-Side Request Forgery (SSRF) vulnerability due to a URL parser discrepancy. This flaw allows a remote authenticated attacker to access sensitive information from internal services. The vulnerability has a high severity rating with a CVSS score of 7.7. There is no indication of known exploits in the wild or available patches at this time.
CVSS v3.1
Score 7.7high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-19304 is a Server-Side Request Forgery (SSRF) vulnerability in IBM Langflow OSS versions 1.0.0 through 1.11.2. The issue arises from a discrepancy in the URL parser, which can be exploited by a remote attacker with authentication to retrieve sensitive information from internal services. The vulnerability has been assigned a CVSS 3.1 base score of 7.7, reflecting high severity with network attack vector, low attack complexity, required privileges, no user interaction, and impact on confidentiality but not integrity or availability.
Potential Impact
An authenticated remote attacker can exploit the SSRF vulnerability to obtain sensitive information from internal services that are otherwise inaccessible. This could lead to unauthorized disclosure of confidential data within the internal network. There is no reported impact on system integrity or availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch links are provided, users should monitor IBM advisories for updates. Until a patch is available, restrict access to internal services and limit authenticated user privileges where possible to reduce risk.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-vw5f-qmfc-5q4v
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-19304"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a9c2659acd9273b49fca67d
Added to database: 09/05/2026, 14:25:29 UTC
Last enriched: 09/29/2026, 05:32:54 UTC
Last updated: 10/19/2026, 18:48:18 UTC
Views: 71
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.