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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| fast-uri | fast-uri | < 3.1.1 | 3.1.1 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | node-ajv | 8.20.0~ds+~cs6.1.3-1 | — |
| Debian 13 | node-ajv | No fix yet | — |
| Debian 12 | node-ajv | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | node-ajv | No fix yet | — |
| Ubuntu 26.04 LTS | node-ajv | No fix yet | — |
| Ubuntu 25.10 | node-ajv | No fix yet | — |
| Ubuntu 24.04 LTS | node-ajv | No fix yet | — |
| Ubuntu 22.04 LTS | node-ajv | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | node-ajv | No fix yet | — |
| Ubuntu 18.04 LTS | node-ajv | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | rh-podman-desktop | 1.1.1-1.el10_2 | RHSA-2026:37385 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Ansible Automation Platform Inside 2 | ansible-core | 1:2.16.19-1.el8ap | RHSA-2026:42079, RHSA-2026:42078 |
| Red Hat Ansible Automation Platform Inside 2 | receptor +1 | 1.6.6-1.el8ap | RHSA-2026:42079, RHSA-2026:42078 |
| Red Hat Ansible Automation Platform Developer 2 | ansible-core | 1:2.16.19-1.el8ap | RHSA-2026:42079, RHSA-2026:42078 |
| Red Hat Ansible Automation Platform Developer 2 | automation-controller +1 | 4.6.30-2.el8ap | RHSA-2026:42078 |
| Red Hat Ansible Automation Platform Developer 2 | python3.12-urllib3 | 2.7.0-1.el8ap | RHSA-2026:42078 |
| Red Hat Ansible Automation Platform Developer 2 | receptor +1 | 1.6.6-1.el8ap | RHSA-2026:42079, RHSA-2026:42078 |
| Red Hat Ansible Automation Platform 2 | ansible-core +1 | 1:2.16.19-1.el8ap | RHSA-2026:42079, RHSA-2026:42078 |
| Red Hat Ansible Automation Platform 2 | automation-controller +4 | 4.6.30-2.el8ap | RHSA-2026:42079, RHSA-2026:42078 |
| Red Hat Ansible Automation Platform 2 | automation-eda-controller +4 | 1.1.20-1.el8ap | RHSA-2026:42078 |
| Red Hat Ansible Automation Platform 2 | automation-gateway +2 | 2.5.20260715-1.el8ap | RHSA-2026:42078 |
| Red Hat Ansible Automation Platform 2 | automation-gateway-proxy +1 | 2.6.17-1.el9ap | RHSA-2026:42079 |
| Red Hat Ansible Automation Platform 2 | automation-hub +1 | 4.10.16-1.el8ap | RHSA-2026:42078 |
| Red Hat Ansible Automation Platform 2 | automation-platform-ui | 2.6.11-1.el9ap | RHSA-2026:42079 |
| Red Hat Ansible Automation Platform 2 | python3.12-gitpython | 3.1.50-1.el8ap | RHSA-2026:42079, RHSA-2026:42078 |
| Red Hat Ansible Automation Platform 2 | python3.12-pulp-ansible | 1:0.25.6-1.el8ap | RHSA-2026:42078 |
| Red Hat Ansible Automation Platform 2 | python3.12-pulp-container | 2.19.12-1.el8ap | RHSA-2026:42078 |
| Red Hat Ansible Automation Platform 2 | python3.12-pulpcore | 3.49.63-2.el8ap | RHSA-2026:42079, RHSA-2026:42078 |
| Red Hat Ansible Automation Platform 2 | python3.12-pyjwt +1 | 2.13.0-1.el8ap | RHSA-2026:42078 |
| Red Hat Ansible Automation Platform 2 | python3.12-pysequoia | 0.1.34-1.el8ap | RHSA-2026:42078 |
| Red Hat Ansible Automation Platform 2 | python3.12-urllib3 | 2.7.0-1.el8ap | RHSA-2026:42078 |
| Red Hat Ansible Automation Platform 2 | receptor +1 | 1.6.6-1.el8ap | RHSA-2026:42079, RHSA-2026:42078 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | openQA | 5.1782995932.ffeb09be-1.1 | openSUSE-SU-2026:11178-1 |
| openSUSE Tumbleweed | python-pydata-sphinx-theme | 0.17.1-1.1 | openSUSE-SU-2026:10750-1 |
| openSUSE Leap 16.0 | openQA | 5.1783076943.6691832d-bp160.1.1 | openSUSE-SU-2026:21266-1 |
| openSUSE Leap 16.0 | os-autoinst | 5.1783082953.c3cb41d-bp160.1.1 | openSUSE-SU-2026:21266-1 |
| openSUSE Leap 16.0 | python-pydata-sphinx-theme | 0.16.1-bp160.2.1 | openSUSE-SU-2026:21173-1 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | langfuse-3 +1 | 3.174.1-r0 | — |
| Wolfi rolling | opensearch-dashboards-3 +1 | 3.6.0-r4 | — |
| Wolfi rolling | prism | 5.15.10-r0 | — |
| Wolfi rolling | saf | 1.5.3-r1 | — |
| Wolfi rolling | serve | 14.2.6-r3 | — |
| Wolfi rolling | tileserver-gl | 5.6.0-r2 | — |
| Wolfi rolling | vitess-23 | 23.0.4-r0 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | fast-uri | >= 3.0.0, < 3.1.1 | 3.1.1 | GHSA-q3j6-qgpj-74h6 |
| npm | fast-uri | < 2.4.1 | 2.4.1 | GHSA-q3j6-qgpj-74h6 |
Advisories 11
- WID-SEC-2026-1604 Red Hat OpenShift Data Foundation: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen BSI CERT-Bund (WID) · Nov 10, 2026
- WID-SEC-2026-2923 Atlassian Produkte (Bamboo, Bitbucket, Confluence, Crucible, Fisheye, und Jira): Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 8, 2026
- RHSA-2026:42079 Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.6 Product Security and Bug Fix Update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:42078 Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.5 Product Security and Bug Fix Update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:37385 Red Hat Security Advisory: rh-podman-desktop security advisory update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- WID-SEC-2026-2460 Atlassian Bamboo, Bitbucket, Confluence, Fisheye, Crucible, Jira und Jira Service Management: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 1, 2026
- NCSC-2026-0325 Kwetsbaarheden verholpen in Atlassian producten NCSC-NL (Netherlands) · Aug 24, 2026
- openSUSE-SU-2026:21266-1 Security update for openQA, os-autoinst SUSE / openSUSE Security Updates · Jul 9, 2026
- openSUSE-SU-2026:11178-1 openQA-5.1782995932.ffeb09be-1.1 on GA media SUSE / openSUSE Security Updates · Jul 3, 2026
- openSUSE-SU-2026:21173-1 Security update for python-pydata-sphinx-theme SUSE / openSUSE Security Updates · Jun 30, 2026
- openSUSE-SU-2026:10750-1 python311-pydata-sphinx-theme-0.17.1-1.1 on GA media SUSE / openSUSE Security Updates · May 12, 2026