GeneralSandman TinyWeb up to 0.0.8 URL parser buildResponse path traversal

Summaryinfo

A vulnerability was found in GeneralSandman TinyWeb up to 0.0.8. It has been classified as problematic. This affects the function HttpBuilder::buildResponse of the component URL parser. This manipulation causes path traversal. This vulnerability is handled as CVE-2026-67185. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as problematic was found in GeneralSandman TinyWeb up to 0.0.8. Affected by this vulnerability is the function HttpBuilder::buildResponse of the component URL parser. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality. The summary by CVE is:

TinyWeb through 0.0.8 contains a path traversal vulnerability that allows unauthenticated attackers to read arbitrary files by submitting ../ sequences in the URL path, which are concatenated directly to the configured web root in HttpBuilder::buildResponse() without normalization, dot-segment removal, or boundary checks. Attackers can craft a single request with ../ sequences that pass through the URL parser unchanged and reach the filesystem call via HttpFile::setFile(), exposing sensitive files such as credential stores and private keys when the server process runs as root.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-67185 since 07/28/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

Applying the patch a381da252fe8e873c8aff22703040426cc9b2ae0 is able to eliminate this problem.

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Productinfo

Vendor

• GeneralSandman

Name

• TinyWeb

Version

• 0.0.1
• 0.0.2
• 0.0.3
• 0.0.4
• 0.0.5
• 0.0.6
• 0.0.7
• 0.0.8

CPE 2.3info

• 🔒
• 🔒
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CPE 2.2info

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• 🔒
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