CVE-2026-33245

MEDIUMNVD 4.74.7—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.7 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 91% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Trending — Patch released this week
4.7
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.7Exploit: NoneExposed: 0

A fix is available — apply it.

React Router is a router for React. In versions 7.7.0 through 7.13.1, when using React Router's unstable React Server Components (RSC) APIs, there is a potential client-side Cross-Site Scripting (XSS) vulnerability in the RSC redirect handling if redirects come from untrusted sources. This does not impact applications that are not using the unstable RSC APIs in React Router. This is patched in version 7.13.2.

CVSS v3
4.7
EG Score
4.7(medium)
EPSS
8.6%
KEV
Not listed

Published

June 2, 2026

Last Modified

June 4, 2026

Advisory Details (1)

Auto-updated Jun 3, 2026
Patch available. Sources: github.
github Patch Available

XSS in unstable RSC redirect handling via javascript: redirect targets · Advisory · remix-run/react-router · GitHub

https://github.com/remix-run/react-router/security/advisories/GHSA-8646-j5j9-6r62

Vendor Advisories for CVE-2026-33245(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrhoai/odh-mod-arch-model-registry-rhel9:17827227262026-07-01redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
react-router—7.13.2—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 71× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 02:23 UTCEPSS rescore
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-05 02:30 UTCEPSS rescore
  6. 2026-07-04 06:31 UTCEPSS rescore
  7. 2026-07-03 23:42 UTCEG score recompute
  8. 2026-07-03 23:42 UTCVendor advisory
  9. 2026-07-02 18:53 UTCEG score recompute
  10. 2026-07-02 18:53 UTCVendor advisory
  11. 2026-07-01 20:52 UTCEG score recompute
  12. 2026-07-01 15:06 UTCEPSS rescore
  13. 2026-06-30 22:37 UTCEG score recompute
  14. 2026-06-29 14:06 UTCEPSS rescore
  15. 2026-06-29 14:06 UTCEPSS rescore
  16. 2026-06-29 12:43 UTCEG score recompute
  17. 2026-06-28 14:42 UTCEG score recompute
  18. 2026-06-28 14:07 UTCEPSS rescore
  19. 2026-06-28 14:07 UTCEPSS rescore
  20. 2026-06-28 04:56 UTCEPSS rescore
  21. 2026-06-28 04:56 UTCEPSS rescore
  22. 2026-06-27 16:41 UTCEG score recompute
  23. 2026-06-27 03:08 UTCEPSS rescore
  24. 2026-06-26 18:30 UTCEG score recompute
  25. 2026-06-25 20:29 UTCEG score recompute
Show 64 more
  1. 2026-06-25 13:49 UTCEPSS rescore
  2. 2026-06-25 13:49 UTCEPSS rescore
  3. 2026-06-24 22:27 UTCEG score recompute
  4. 2026-06-24 14:05 UTCEPSS rescore
  5. 2026-06-23 21:33 UTCEPSS rescore
  6. 2026-06-23 21:33 UTCEPSS rescore
  7. 2026-06-23 19:50 UTCEG score recompute
  8. 2026-06-22 14:25 UTCEPSS rescore
  9. 2026-06-22 14:25 UTCEPSS rescore
  10. 2026-06-21 14:56 UTCEPSS rescore
  11. 2026-06-21 14:56 UTCEPSS rescore
  12. 2026-06-21 01:59 UTCEPSS rescore
  13. 2026-06-20 00:02 UTCEG score recompute
  14. 2026-06-19 19:25 UTCEPSS rescore
  15. 2026-06-19 19:25 UTCEPSS rescore
  16. 2026-06-18 17:52 UTCEPSS rescore
  17. 2026-06-18 17:52 UTCEPSS rescore
  18. 2026-06-18 07:52 UTCEG score recompute
  19. 2026-06-17 17:53 UTCEPSS rescore
  20. 2026-06-17 07:36 UTCEG score recompute
  21. 2026-06-16 17:52 UTCEPSS rescore
  22. 2026-06-16 09:10 UTCEG score recompute
  23. 2026-06-15 17:49 UTCEPSS rescore
  24. 2026-06-15 11:09 UTCEG score recompute
  25. 2026-06-14 23:18 UTCEPSS rescore
  26. 2026-06-14 12:26 UTCEG score recompute
  27. 2026-06-13 14:26 UTCEG score recompute
  28. 2026-06-12 23:12 UTCEPSS rescore
  29. 2026-06-12 23:12 UTCEPSS rescore
  30. 2026-06-12 16:24 UTCEG score recompute
  31. 2026-06-11 18:22 UTCEG score recompute
  32. 2026-06-11 14:00 UTCEPSS rescore
  33. 2026-06-10 22:18 UTCEPSS rescore
  34. 2026-06-10 20:22 UTCEG score recompute
  35. 2026-06-10 13:22 UTCEPSS rescore
  36. 2026-06-09 22:22 UTCEG score recompute
  37. 2026-06-09 00:21 UTCEG score recompute▼ 3.30
  38. 2026-06-08 23:31 UTCNVD updateCVSS v3 → 4.7 · severity → MEDIUM
  39. 2026-06-08 14:17 UTCEPSS rescore
  40. 2026-06-08 14:17 UTCEPSS rescore
  41. 2026-06-08 12:55 UTCEG score recompute
  42. 2026-06-08 01:30 UTCEG score recompute
  43. 2026-06-07 15:25 UTCEPSS rescore
  44. 2026-06-07 15:25 UTCEPSS rescore
  45. 2026-06-07 15:25 UTCEPSS rescore
  46. 2026-06-07 14:05 UTCEG score recompute
  47. 2026-06-07 02:35 UTCEG score recompute
  48. 2026-06-06 15:09 UTCEG score recompute
  49. 2026-06-06 13:47 UTCEPSS rescore
  50. 2026-06-06 13:47 UTCEPSS rescore
  51. 2026-06-06 03:44 UTCEG score recompute
  52. 2026-06-05 22:47 UTCEPSS rescore
  53. 2026-06-05 22:47 UTCEPSS rescore
  54. 2026-06-05 16:19 UTCEG score recompute
  55. 2026-06-05 06:10 UTCEPSS rescore
  56. 2026-06-05 06:10 UTCEPSS rescore
  57. 2026-06-05 04:54 UTCEG score recompute
  58. 2026-06-04 17:29 UTCEG score recompute
  59. 2026-06-04 13:12 UTCEPSS rescore
  60. 2026-06-04 13:12 UTCEPSS rescore
  61. 2026-06-04 06:04 UTCEG score recompute
  62. 2026-06-03 18:39 UTCEG score recompute
  63. 2026-06-03 07:13 UTCEG score recompute
  64. 2026-06-02 19:48 UTCEG score recompute

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-33245?
CVE-2026-33245 is a medium vulnerability published on June 2, 2026. React Router is a router for React. In versions 7.7.0 through 7.13.1, when using React Router's unstable React Server Components (RSC) APIs, there is a potential client-side Cross-Site Scripting (XSS) vulnerability in the RSC redirect handling if redirects come from untrusted sources. This does not…
When was CVE-2026-33245 disclosed?
CVE-2026-33245 was first published in the National Vulnerability Database on June 2, 2026, with the most recent update on June 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-33245 actively exploited?
CVE-2026-33245 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 8.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-33245?
CVE-2026-33245 has a CVSS v3 base score of 4.7 (NVD).
How do I remediate CVE-2026-33245?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-33245, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-33245

Explore →

Is Your Infrastructure Affected by CVE-2026-33245?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs