What is CVE-2026-104312?

CVE-2026-104312 is a low-severity vulnerability in IBM Langflow Oss, classified under Path Traversal. CVSS score: 3.5/10. Published 2026-10-29.

How severe is CVE-2026-104312?

Low severity. CVSS v3 base score is 3.5 out of 10.

Path Traversal in IBM Langflow Oss

CVE-2026-104312

IBM Langflow OSS 1.0.0 through 1.12.3 could allow an authenticated attacker to produce a server-generated ZIP archive containing entry paths that traverse outside the intended extraction directory. Extraction of the archive by a victim using a non-sanitizing tool could result in arbitrary file write on the victim's host.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2026-10-29 · last modified 2026-10-29.

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

IBM Langflow Oss

Weakness classification (CWE)

CWE-22 — Path Traversal

References

www.ibm.com/support/pages/node/7293015 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-104312?: CVE-2026-104312 is a low-severity vulnerability in IBM Langflow Oss, classified under Path Traversal. CVSS score: 3.5/10. Published 2026-10-29.
How severe is CVE-2026-104312?: Low severity. CVSS v3 base score is 3.5 out of 10.