Client-side script execution via unsafe SPA redirects
Published Jan 10, 2026 · Updated Aug 26, 2026
Cross-site scripting in React Router 7.0.0 through 7.11.0 allows remote attackers to execute JavaScript through unsafe SPA redirects. Loader or action redirects accept an untrusted or open-redirect-derived URL and pass its unsafe scheme into client navigation without blocking JavaScript execution. Exploitation requires a victim to follow the redirect in Framework, Data, or unstable RSC mode; Declarative Mode is unaffected.
Summary
What happened
Cross-site scripting in React Router 7.0.0 through 7.11.0 allows remote attackers to execute JavaScript through unsafe SPA redirects. Loader or action redirects accept an untrusted or open-redirect-derived URL and pass its unsafe scheme into client navigation without blocking JavaScript execution. Exploitation requires a victim to follow the redirect in Framework, Data, or unstable RSC mode; Declarative Mode is unaffected.
The record
- CVE
- CVE-2026-22029
- Published
- Jan 10, 2026
- Updated
- Aug 26, 2026
- Vendor
- 389 Directory Server
- Product
- Red Hat Quay
- Classifications
- CWE-79, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 10, 2026CVE publishedPublication date reported by the CVE source.
- Aug 26, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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