CVE-2026-69201 (GCVE-0-2026-69201)
Vulnerability from cvelistv5
Published
2026-09-15 19:02
Modified
2026-09-15 19:21
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Summary
Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, ResourceService and WebjarService decode each URL path segment but reject only segments exactly equal to an empty string, a dot, or two dots. A request containing percent-encoded slash or backslash separators can turn an accepted segment into a parent-directory traversal after decoding, allowing access to classpath or WebJar resources outside the configured base when a directory-backed classpath is served and the backend preserves the encoded separator. The patch rejects decoded segments containing slash or backslash in ResourceService and WebjarService, and applies the same guard to the non-exploitable FileService for consistency. This issue is fixed in versions 0.23.35 and 1.0.0-M47.
Impacted products
Vendor Product Version
http4s http4s Version: < 0.23.35
Version: >= 1.0.0-M1, < 1.0.0-M47
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Show details on NVD website


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