CVE-2026-21884
HighAdvisory
Published 8 Jan 2026In the index since 6 Sept 2026
- Severity
- High
- worst across findings
- CVSS
- 8.2
- base score, highest
- EPSS
- 0.005
- 44th percentile
- CISA KEV
- Not listed
- no confirmed exploitation
- Charts affected
- 4
- of 17,781 indexed, latest versions
- Container images
- 6
- deployed by those charts
- Fix available
- 2 of 2
- affected packages
React Router SSR XSS in ScrollRestoration
Carried by container images the latest versions of 4 of 17,781 indexed charts deploy, on 6 images.
| Affected package | Affected versions | Fixed in | Images |
|---|---|---|---|
| react-routernpm | 7.1.1, 7.6.0, 7.6.2 | 7.12.0 | 4 |
| @remix-run/ | 2.15.0, 2.16.5, 2.16.8 | 2.17.3 | 4 |
- OSV records
- GHSA-8v8x-cx79-35w7
Charts affected
4 by stars
| Chart | Latest | Affected images | Radar Score |
|---|---|---|---|
| headplanenbcloudVerified publisher | 0.1.2 | 1 of 4See more | 7,949 |
| foremancontane-githubOfficialVerified publisher | 0.6.0 | 1 of 1See more | 1,152 |
| openvaultopenvaultVerified publisher | 0.8.1 | 1 of 2See more | 6,873 |
| cloudpremcloudprem | 0.0.0-build.00306ba7288bb8d46dd8c6190af79ef5b6fbdbad | 3 of 6See more | 18,293 |
Container images carrying it
6 by charts deploying them
A fixed version is listed for 2 of the 2 affected packages.
| Container image | Digest | Package | Fixed in | Used by |
|---|---|---|---|---|
| contane/ | efb98bdcc4e9 | react-router | 7.12.0 | 1 |
| ghcr.io/ | a4d32c2f68b3 | @remix-run/ | 2.17.3 | 1 |
| ghcr.io/ | c99e8ef2c545 | @remix-run/ react-router | 2.17.3 7.12.0 | 1 |
| ghcr.io/ | 6efef5d19d56 | @remix-run/ react-router | 2.17.3 7.12.0 | 1 |
| ghcr.io/ | 0dbc52cffc19 | react-router | 7.12.0 | 1 |
| ghcr.io/ | bfc3118f6565 | @remix-run/ | 2.17.3 | 1 |