Vulnerability · Published Oct 29, 2026 · Assigned by ibm

CVE-2026-104308Langflow OSS is affected by multiple vulnerabilities

Medium 4.3

In plain English

A medium-severity OS command injection in Langflow OSS from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.3%top 72.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

IBM Langflow OSS 1.0.0 through 1.12.3 could allow a remote authenticated attacker to cause a denial of service due to improper neutralization of special elements used in an OS command.

Affected products (as reported)

VendorProductVersions
IBM Langflow OSS 1.0.0 – through 1.12.3

Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

References