CVE-2026-12944CWE-918ssrf

CVE-2026-12944

Critical · published September 15, 2026

CVSS v3.1
9.6
EPSS
0%
Percentile
36.1
In the wild
Unconfirmed
What it is

IBM Langflow OSS 1.0.0 through 1.10.0 can allow attackers to execute arbitrary Python code with root privileges (UID=0) on the Langflow server by submitting components containing socket or urllib imports. This enables: (1) AWS credential theft via IMDSv1 SSRF with full IAM role permissions, (2) arbitrary file exfiltration from the container filesystem, and (3) lateral movement to internal services (PostgreSQL, Redis) within the Docker network. The scanner incorrectly returns "validated": true, providing a false security signal.

The record
Technical detail
CVSS v3.1
9.6 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00429 · 36.1th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-09-15T02:16Z
References (1)
EPSS history
Timeline
  • 16 SEP 04:25Z
    EPSS moved — → 0%
    epss
  • 14 SEP 21:30Z
    Incomplete Security Scanner Blocklist Enables Network-Based Code Execution
    cvelistv5