Description
fast-uri normalize() decoded percent-encoded authority delimiters inside the host component and then re-emitted them as raw delimiters during serialization. A host that combined an allowed domain, an encoded at-sign, and a different domain was re-emitted with the at-sign as a raw userinfo separator, changing the URI's authority to the second domain. Applications that normalize untrusted URLs before host allowlist checks, redirect validation, or outbound request routing can be steered to a different authority than the input appeared to specify. Versions <= 3.1.1 are affected. Update to 3.1.2 or later.
Problem types
CWE-436: Interpretation Conflict
Product status
Any version before 3.1.2
3.1.2 (semver)
Credits
Jvr
Matteo Collina
Ulises Gascón
KaKa
References
github.com/...st-uri/security/advisories/GHSA-v39h-62p7-jpjc
cna.openjsf.org/security-advisories.html