Detections
Analytics
CVE-2026-6322
high
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.
References
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6322.json
https://github.com/fastify/fast-uri/security/advisories/GHSA-v39h-62p7-jpjc
https://cna.openjsf.org/security-advisories.html
https://bugzilla.redhat.com/show_bug.cgi?id=2466684
https://access.redhat.com/security/cve/CVE-2026-6322
https://access.redhat.com/errata/RHSA-2026:37385
https://access.redhat.com/errata/RHSA-2026:37186
https://access.redhat.com/errata/RHSA-2026:36754
https://access.redhat.com/errata/RHSA-2026:36651
https://access.redhat.com/errata/RHSA-2026:34770
https://access.redhat.com/errata/RHSA-2026:34766
https://access.redhat.com/errata/RHSA-2026:34374
https://access.redhat.com/errata/RHSA-2026:34342
https://access.redhat.com/errata/RHSA-2026:34160
https://access.redhat.com/errata/RHSA-2026:33683
https://access.redhat.com/errata/RHSA-2026:30076
https://access.redhat.com/errata/RHSA-2026:29834
https://access.redhat.com/errata/RHSA-2026:29800
https://access.redhat.com/errata/RHSA-2026:29796
https://access.redhat.com/errata/RHSA-2026:29795
https://access.redhat.com/errata/RHSA-2026:29197
https://access.redhat.com/errata/RHSA-2026:28571
https://access.redhat.com/errata/RHSA-2026:26234
https://access.redhat.com/errata/RHSA-2026:26225