Vulnerability · Published Apr 30, 2026 · Assigned by ibm
CVE-2026-3345Path Traversal and Arbitrary File Write Vulnerability in IBM Langflow Desktop API v2 File Upload Endpoint
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 0.4% (higher than 32% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.4%top 68.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
IBM Langflow Desktop <=1.8.4 Langflow could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| IBM | Langflow Desktop | 0 – through 1.8.4 |
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
References
- https://www.ibm.com/support/pages/node/7271094 vendor-advisory, patch