What’s Vulnerable › Vulnerabilities

CVE-2026-67185: TinyWeb 0.0.8 Path Traversal via URL Path Component

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-28 · updated 2026-10-23
• Weakness: CWE-22

Description

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.

Affected products

• GeneralSandman TinyWeb: 0.0.8

References

• https://github.com/theopaid/Unauthenticated-Path-Traversal-Allows-Arbitrary-File-Read-TinyWeb-
• https://www.vulncheck.com/advisories/tinyweb-path-traversal-via-url-path-component

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