# CVE-2026-53669: React Router: Open redirect via backslash in <Link> and useNavigate (CVE-2025-68470 bypass)


- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N`)
- **Exploited in the wild:** Not known
- **Fix available:** Yes
- **Published:** 27 Jul 2026
- **Updated:** 28 Jul 2026
- **Also known as:** CLSA-2026-1788955035, CLSA-2026-1790161471, CLSA-2026-1792253401, CLSA-2026-1792253406, CLSA-2026-1792269433, CLSA-2026-1792269435, GHSA-wrjc-x8rr-h8h6, MINI-f8rm-w76f-2qrp, RHSA-2026:48780, RHSA-2026:48799, ROOT-APP-NPM-CVE-2026-53669

## What is CVE-2026-53669?

CVE-2026-53669 is a medium-severity vulnerability in remix-run react-router, published on 27 Jul 2026. 

### Official description

React Router is a router for React. Versions 6.0.0 through 7.17.0 are vulnerable to Open Redirtect through use of backslashes in <Link> and useNavigate. This issue is a follow up to CVE-2025-68470 and has been fixed in version 7.18.0.

Weakness: CWE-601 (URL Redirection to Untrusted Site)

## Which versions are affected by CVE-2026-53669?

2 open source packages ship an affected version, including react-router. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `react-router` | npm | From 6.0.0 | 7.18.0 |
| `react-router` | npm | From 6.0.0 | 7.18.0 |
| `prometheus3.13` | Red Hat:hummingbird:1 | All versions | 0:3.13.1-0.5.hum1 |
| `prometheus3.5` | Red Hat:hummingbird:1 | All versions | 0:3.5.5-0.6.hum1 |

Products: Shopify React-Router.

## How do I fix CVE-2026-53669?

Upgrade react-router to 7.18.0 or later.

## Is CVE-2026-53669 being exploited?

There is no known exploitation of CVE-2026-53669 in the wild and no public exploit code.

## Other vulnerabilities in remix-run react-router

- [CVE-2026-55685](https://insights.sbomify.com/CVE-2026-55685/): React Router: Unauthenticated Denial of Service via Inefficient Route Matching (high 8.7)
- [CVE-2026-21884](https://insights.sbomify.com/CVE-2026-21884/): React Router SSR XSS in ScrollRestoration (high 8.2)
- [CVE-2026-42211](https://insights.sbomify.com/CVE-2026-42211/): React Router's vendored turbo-stream v2 allows arbitrary constructor invocation via TYPE_ERROR deserialization leading to Unauth RCE (high 8.1)
- [CVE-2026-33245](https://insights.sbomify.com/CVE-2026-33245/): React Router vulnerable to XSS in unstable RSC redirect handling via javascript: redirect targets (high 8.0)
- [CVE-2026-22029](https://insights.sbomify.com/CVE-2026-22029/): React Router vulnerable to XSS via Open Redirects (high 8.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-53669 and fix it if it is affected.

What it is: CVE-2026-53669 is a medium-severity vulnerability in remix-run react-router, published on 27 Jul 2026. 
Exploitation: There is no known exploitation of CVE-2026-53669 in the wild and no public exploit code.

Affected packages and fixed versions:
- react-router (npm): affected from 6.0.0; fixed in 7.18.0
- react-router (npm): affected from 6.0.0; fixed in 7.18.0

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-53669/ (Markdown: https://insights.sbomify.com/CVE-2026-53669/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-53669
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-53669
- OSV: https://osv.dev/vulnerability/CVE-2026-53669

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-53669/
Summaries are generated and may contain mistakes; the official description above is the record.