CVE-2026-6321 | BDVDB-2026-330239 Detail

Description#

fast-uri decoded percent-encoded path separators and dot segments before applying dot-segment removal in its normalize() and equal() functions. Encoded path data was treated like real slashes and parent-directory references, so distinct URIs could collapse onto the same normalized path. Applications that normalize or compare attacker-controlled URLs to enforce path-based policy can be bypassed, with a path that appears confined under an allowed prefix normalizing to a different location. Versions <= 3.1.0 are affected. Update to 3.1.1 or later.

Impact#

Weaknesses#

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Exploit#

History#

1. Version 12026-05-04Record published in the CVE List.
2. Version 22026-09-10Most recent update recorded in the CVE List.