IBM Langflow OSS up to 1.10.3 URL path traversal

Summaryinfo

A vulnerability classified as problematic has been found in IBM Langflow OSS up to 1.10.3. This issue affects some unknown processing of the component URL Handler. The manipulation leads to path traversal. This vulnerability is uniquely identified as CVE-2026-8183. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in IBM Langflow OSS up to 1.10.3 and classified as problematic. This issue affects some unknown processing of the component URL Handler. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality. The summary by CVE is:

IBM Langflow OSS 1.0.0 through 1.10.3, 1.0.0 through 1.10.3, 1.0.0 through 1.10.3, 1.0.0 through 1.10.3, 1.0.0 through 1.10.3, and 1.0.0 through 1.10.3 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 v i ew arbitrary files on the system.

The advisory is shared at ibm.com. The identification of this vulnerability is CVE-2026-8183 since 05/08/2026. The exploitation is known to be easy. The attack may be initiated remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 08/05/2026). MITRE ATT&CK project uses the attack technique T1006 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• IBM

Name

• Langflow OSS

Version

• 1.10.0
• 1.10.1
• 1.10.2
• 1.10.3

License

• commercial

Website

• Vendor: https://www.ibm.com/

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