# CVE-2026-6321: node-ajv: fast-uri decoded percent-encoded path separators and dot segments before applying dot-segment removal in its normaliz...

CVE-2026-6321 is fixed in 5 products on 1 platform, first by RHSA-2026:37385, released May 13, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-6321
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0063
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 4, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | node-ajv Debian 14 | 8.20.0~ds+~cs6.1.3-1 | [DEBIAN-CVE-2026-6321](https://patchblox.com/security/data/fix/linux/debian-cve-2026-6321.md) | May 15, 2026 |
| Linux | openQA opensuse-leap 16.0 | 5.1783076943.6691832d-bp160.1.1 | [OPENSUSE-SU-2026:21266-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21266-1.md) | Jul 6, 2026 |
| Linux | os-autoinst opensuse-leap 16.0 | 5.1783082953.c3cb41d-bp160.1.1 | [OPENSUSE-SU-2026:21266-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21266-1.md) | Jul 6, 2026 |
| Linux | python-pydata-sphinx-theme opensuse-leap 16.0 | 0.16.1-bp160.2.1 | [OPENSUSE-SU-2026:21173-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21173-1.md) | Jun 29, 2026 |
| Linux | rh-podman-desktop RHEL 10 | 1.1.1-1.el10_2 | [RHSA-2026:37385](https://patchblox.com/security/data/fix/linux/rhsa-2026-37385.md) | May 13, 2026 |

---

Data as of 2026-11-08T19:12:23Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.