Vulnerability · Published Apr 30, 2026 · Assigned by ibm
CVE-2026-4502Arbitrary File Write and Remote Code Execution Vulnerability in Langflow v2 API
Medium 6.5
In plain English
A medium-severity path traversal in Langflow Desktop 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 20% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.3%top 79.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
IBM Langflow Desktop 1.2.0 through 1.8.4 Langflow could allow an authenticated attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences (/../) to write arbitrary files on the system.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| IBM | Langflow Desktop | 1.2.0 – through 1.8.4 |
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
References
- https://www.ibm.com/support/pages/node/7271097 vendor-advisory, patch