CVE-2026-48099: WsgiDAV encoded dot segments can escape filesystem share roots

June 11, 2026

WsgiDAV 4.3.3 can allow a WebDAV request path containing an encoded parent-directory segment to escape the configured filesystem share root in a specific path layout.

References

github.com/advisories/GHSA-wxq4-cc2q-338q
github.com/mar10/wsgidav/commit/f894ed8656d7bdd7438ab8148c5a02546cb15183
github.com/mar10/wsgidav/security/advisories/GHSA-wxq4-cc2q-338q
nvd.nist.gov/vuln/detail/CVE-2026-48099

Code Behaviors & Features

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