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 92% 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 — 3 sources updated this week
4.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.7Exploit: None knownExposed: 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)
EG Risk
21(Track)
EG Risk 21/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity47% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
8%
KEV
Not listed

Published

June 2, 2026

Last Modified

July 22, 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(5)

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

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatdevspaces/dashboard-rhel9:17847371502026-07-29redhat
redhatreact-router2026-07-20redhat
redhatrhoai/odh-mod-arch-model-registry-rhel9:17828283012026-07-09redhat
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 15× in last 7d / 73× 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.

Showing the most recent 100 of 162 total refreshes for this CVE.

  1. 2026-08-25 13:49 UTCEPSS rescore
  2. 2026-08-25 03:44 UTCEG score recompute
  3. 2026-08-25 03:44 UTCVendor advisory
  4. 2026-08-24 14:17 UTCEPSS rescore
  5. 2026-08-23 13:41 UTCEG score recompute
  6. 2026-08-23 13:41 UTCVendor advisory
  7. 2026-08-23 00:19 UTCEPSS rescore
  8. 2026-08-21 23:49 UTCEPSS rescore
  9. 2026-08-21 08:42 UTCEG score recompute
  10. 2026-08-21 08:42 UTCVendor advisory
  11. 2026-08-20 22:55 UTCEPSS rescore
  12. 2026-08-20 22:55 UTCEPSS rescore
  13. 2026-08-20 10:09 UTCEG score recompute
  14. 2026-08-20 10:09 UTCVendor advisory
  15. 2026-08-19 17:03 UTCEPSS rescore
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 04:05 UTCEG score recompute
  18. 2026-08-17 04:05 UTCVendor advisory
  19. 2026-08-16 14:56 UTCEPSS rescore
  20. 2026-08-16 02:19 UTCEG score recompute
  21. 2026-08-16 02:19 UTCVendor advisory
  22. 2026-08-16 02:14 UTCEPSS rescore
  23. 2026-08-15 02:48 UTCEG score recompute
  24. 2026-08-15 02:48 UTCVendor advisory
  25. 2026-08-15 01:30 UTCEPSS rescore
Show 75 more
  1. 2026-08-14 04:42 UTCEG score recompute
  2. 2026-08-14 04:42 UTCVendor advisory
  3. 2026-08-13 22:00 UTCEPSS rescore
  4. 2026-08-13 06:42 UTCEG score recompute
  5. 2026-08-13 06:42 UTCVendor advisory
  6. 2026-08-12 13:50 UTCEPSS rescore
  7. 2026-08-12 08:41 UTCEG score recompute
  8. 2026-08-12 08:41 UTCVendor advisory
  9. 2026-08-11 08:47 UTCEG score recompute
  10. 2026-08-11 08:47 UTCVendor advisory
  11. 2026-08-11 00:00 UTCEPSS rescore
  12. 2026-08-10 10:47 UTCEG score recompute
  13. 2026-08-10 10:47 UTCVendor advisory
  14. 2026-08-09 13:46 UTCEPSS rescore
  15. 2026-08-09 12:38 UTCEG score recompute
  16. 2026-08-09 12:38 UTCVendor advisory
  17. 2026-08-08 16:37 UTCEPSS rescore
  18. 2026-08-08 14:38 UTCVendor advisory
  19. 2026-08-07 16:37 UTCEG score recompute
  20. 2026-08-07 16:37 UTCVendor advisory
  21. 2026-08-06 18:36 UTCEG score recompute
  22. 2026-08-06 18:36 UTCVendor advisory
  23. 2026-08-06 13:46 UTCEPSS rescore
  24. 2026-08-05 20:36 UTCEG score recompute
  25. 2026-08-05 20:36 UTCVendor advisory
  26. 2026-08-05 19:17 UTCEPSS rescore
  27. 2026-08-04 19:52 UTCEG score recompute
  28. 2026-08-04 19:52 UTCVendor advisory
  29. 2026-08-04 15:10 UTCEPSS rescore
  30. 2026-08-04 10:38 UTCEPSS rescore
  31. 2026-08-03 15:45 UTCEG score recompute
  32. 2026-08-03 15:45 UTCVendor advisory
  33. 2026-08-03 10:36 UTCEPSS rescore
  34. 2026-08-02 11:19 UTCEG score recompute
  35. 2026-08-02 11:19 UTCVendor advisory
  36. 2026-08-02 02:27 UTCEPSS rescore
  37. 2026-08-01 13:15 UTCEG score recompute
  38. 2026-08-01 13:15 UTCVendor advisory
  39. 2026-08-01 04:16 UTCEPSS rescore
  40. 2026-07-31 05:37 UTCEG score recompute
  41. 2026-07-31 05:37 UTCVendor advisory
  42. 2026-07-30 16:28 UTCEPSS rescore
  43. 2026-07-30 01:30 UTCEPSS rescore
  44. 2026-07-29 10:46 UTCEG score recompute
  45. 2026-07-29 10:46 UTCVendor advisory
  46. 2026-07-28 03:37 UTCEG score recompute
  47. 2026-07-28 03:37 UTCVendor advisory
  48. 2026-07-27 14:13 UTCEPSS rescore
  49. 2026-07-26 22:53 UTCEG score recompute
  50. 2026-07-26 22:53 UTCVendor advisory
  51. 2026-07-26 14:54 UTCEPSS rescore
  52. 2026-07-26 14:54 UTCEPSS rescore
  53. 2026-07-25 14:18 UTCEPSS rescore
  54. 2026-07-25 14:18 UTCEPSS rescore
  55. 2026-07-24 14:17 UTCEPSS rescore
  56. 2026-07-24 14:17 UTCEPSS rescore
  57. 2026-07-23 14:18 UTCEPSS rescore
  58. 2026-07-23 14:18 UTCEPSS rescore
  59. 2026-07-23 03:09 UTCEG score recompute
  60. 2026-07-22 14:08 UTCEPSS rescore
  61. 2026-07-21 15:24 UTCEPSS rescore
  62. 2026-07-20 17:08 UTCEPSS rescore
  63. 2026-07-19 14:31 UTCEPSS rescore
  64. 2026-07-19 02:29 UTCEPSS rescore
  65. 2026-07-18 10:04 UTCEPSS rescore
  66. 2026-07-16 17:03 UTCEPSS rescore
  67. 2026-07-16 00:57 UTCVendor advisory
  68. 2026-07-15 16:57 UTCEPSS rescore
  69. 2026-07-15 16:57 UTCEPSS rescore
  70. 2026-07-15 02:00 UTCEPSS rescore
  71. 2026-07-15 02:00 UTCEPSS rescore
  72. 2026-07-14 03:37 UTCVendor advisory
  73. 2026-07-13 22:30 UTCEPSS rescore
  74. 2026-07-13 06:13 UTCEPSS rescore
  75. 2026-07-13 06:13 UTCEPSS rescore

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 July 22, 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 0% probability of exploitation in the next 30 days, which ranks it in the top 91.5% of all scored CVEs.
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

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