Path Traversal in Generalsandman Tinyweb
CVE-2026-67185
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.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.005 (38.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Generalsandman Tinyweb — versions 0b3b5fdb5a058f50248cd8547824936b8dd10351, 0.0.8
Weakness classification (CWE)
Public proof-of-concept exploits
References
- disclosure@vulncheck.com (technical-description, exploit)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-67185?
- CVE-2026-67185 is a high-severity vulnerability in Generalsandman Tinyweb, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-07-28.
- How severe is CVE-2026-67185?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2026-67185 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.