CVE-2026-55685

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 66% 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
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

A fix is available — apply it.

React Router is a router for React. In versions 7.0.0 through 7.17.0, the manifest endpoint could be accessed via unauthenticated targeted requests that would put heavy load on the server and slow down response times. This issue is a follow up to CVE-2026-42342, and does not does not impact React Router applications using Declarative Mode () or Data Mode (createBrowserRouter/). This issue has been fixed in version 7.18.0.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
34%
KEV
Not listed

Published

July 24, 2026

Last Modified

August 3, 2026

Advisory Details (6)

Auto-updated Jul 27, 2026
Patch available. Sources: github_commit, github_release, github, github_pr.
github_release Patch Available

v7.18.0

Patch available: remix-run/react-router [email protected]

https://github.com/remix-run/react-router/releases/tag/[email protected]
generic

react-router/CHANGELOG.md at main · remix-run/react-router · GitHub

https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v7180
github_commit Patch Available

commit 09e6020d1950 (remix-run/react-router)

Patch available: remix-run/react-router [email protected] (contains commit 09e6020d1950)

https://github.com/remix-run/react-router/commit/09e6020d1950e54f361f7ad00938ecd4dde60929
github_pr Patch Available

Optimize route matching internals

Patch available: remix-run/react-router [email protected] (PR #15186 merged 2026-06-15)

https://github.com/remix-run/react-router/pull/15186
github Patch Available

DoS via unbounded path expansion in __manifest endpoint · Advisory · remix-run/react-router · GitHub

https://github.com/remix-run/react-router/security/advisories/GHSA-8x6r-g9mw-2r78
github Patch Available

Unauthenticated Denial of Service in React Router __manifest endpoint · Advisory · remix-run/react-router · GitHub

https://github.com/remix-run/react-router/security/advisories/GHSA-chx6-hx7r-mcp5

Vendor Advisories for CVE-2026-55685(3)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrhoai/odh-mod-arch-model-registry-rhel9:17883121572026-09-08redhat
redhatrhoai/odh-mod-arch-model-registry-rhel9:17872506172026-08-27redhat

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—7.18.0—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 68× 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 114 total refreshes for this CVE.

  1. 2026-09-15 09:40 UTCEG score recompute
  2. 2026-09-15 09:40 UTCVendor advisory
  3. 2026-09-15 03:11 UTCEPSS rescore
  4. 2026-09-14 06:57 UTCVendor advisory
  5. 2026-09-13 18:36 UTCEG score recompute
  6. 2026-09-13 18:36 UTCVendor advisory
  7. 2026-09-13 16:47 UTCEPSS rescore
  8. 2026-09-13 06:13 UTCVendor advisory
  9. 2026-09-12 17:41 UTCEG score recompute
  10. 2026-09-12 17:41 UTCVendor advisory
  11. 2026-09-12 05:06 UTCVendor advisory
  12. 2026-09-11 16:38 UTCEG score recompute
  13. 2026-09-11 16:38 UTCVendor advisory
  14. 2026-09-11 14:53 UTCEPSS rescore
  15. 2026-09-11 03:12 UTCVendor advisory
  16. 2026-09-10 14:49 UTCEG score recompute
  17. 2026-09-10 14:49 UTCVendor advisory
  18. 2026-09-10 09:35 UTCEPSS rescore
  19. 2026-09-09 08:50 UTCEG score recompute
  20. 2026-09-09 08:50 UTCVendor advisory
  21. 2026-09-08 22:01 UTCEPSS rescore
  22. 2026-09-07 21:26 UTCEG score recompute
  23. 2026-09-07 21:26 UTCVendor advisory
  24. 2026-09-07 16:01 UTCEPSS rescore
  25. 2026-09-06 13:47 UTCEPSS rescore
Show 75 more
  1. 2026-09-06 08:13 UTCVendor advisory
  2. 2026-09-05 19:25 UTCEG score recompute
  3. 2026-09-05 19:25 UTCVendor advisory
  4. 2026-09-05 06:55 UTCEG score recompute
  5. 2026-09-05 06:55 UTCVendor advisory
  6. 2026-09-04 12:55 UTCEG score recompute
  7. 2026-09-04 12:55 UTCVendor advisory
  8. 2026-09-04 05:06 UTCEPSS rescore
  9. 2026-09-02 14:12 UTCEPSS rescore
  10. 2026-09-01 23:18 UTCEG score recompute
  11. 2026-09-01 23:18 UTCVendor advisory
  12. 2026-09-01 13:54 UTCEPSS rescore
  13. 2026-09-01 04:40 UTCEPSS rescore
  14. 2026-08-31 01:06 UTCEG score recompute
  15. 2026-08-31 01:06 UTCVendor advisory
  16. 2026-08-30 19:17 UTCEPSS rescore
  17. 2026-08-30 12:44 UTCEG score recompute
  18. 2026-08-30 12:44 UTCVendor advisory
  19. 2026-08-30 01:22 UTCEPSS rescore
  20. 2026-08-30 00:20 UTCEG score recompute
  21. 2026-08-30 00:20 UTCVendor advisory
  22. 2026-08-28 21:41 UTCEPSS rescore
  23. 2026-08-28 02:46 UTCVendor advisory
  24. 2026-08-27 14:25 UTCEG score recompute
  25. 2026-08-27 14:25 UTCEPSS rescore
  26. 2026-08-27 02:00 UTCEG score recompute
  27. 2026-08-26 14:46 UTCEPSS rescore
  28. 2026-08-26 00:50 UTCEG score recompute
  29. 2026-08-25 13:49 UTCEPSS rescore
  30. 2026-08-25 00:06 UTCEG score recompute
  31. 2026-08-24 11:45 UTCEG score recompute
  32. 2026-08-23 11:02 UTCEG score recompute
  33. 2026-08-23 00:19 UTCEPSS rescore
  34. 2026-08-22 10:20 UTCEG score recompute
  35. 2026-08-21 23:49 UTCEPSS rescore
  36. 2026-08-21 09:31 UTCEG score recompute
  37. 2026-08-20 22:55 UTCEPSS rescore
  38. 2026-08-19 20:28 UTCEG score recompute
  39. 2026-08-19 17:04 UTCEPSS rescore
  40. 2026-08-18 18:54 UTCEG score recompute
  41. 2026-08-18 13:48 UTCEPSS rescore
  42. 2026-08-18 01:26 UTCEG score recompute
  43. 2026-08-17 13:47 UTCEPSS rescore
  44. 2026-08-16 23:22 UTCEG score recompute
  45. 2026-08-16 14:56 UTCEPSS rescore
  46. 2026-08-16 11:00 UTCEG score recompute
  47. 2026-08-16 02:14 UTCEPSS rescore
  48. 2026-08-15 10:19 UTCEG score recompute
  49. 2026-08-15 01:30 UTCEPSS rescore
  50. 2026-08-14 09:36 UTCEG score recompute
  51. 2026-08-13 22:00 UTCEPSS rescore
  52. 2026-08-12 20:33 UTCEG score recompute
  53. 2026-08-12 13:51 UTCEPSS rescore
  54. 2026-08-11 19:51 UTCEG score recompute
  55. 2026-08-11 07:30 UTCEG score recompute
  56. 2026-08-11 00:00 UTCEPSS rescore
  57. 2026-08-09 18:27 UTCEG score recompute
  58. 2026-08-09 13:46 UTCEPSS rescore
  59. 2026-08-08 17:45 UTCEG score recompute
  60. 2026-08-08 16:37 UTCEPSS rescore
  61. 2026-08-07 17:02 UTCEG score recompute
  62. 2026-08-06 16:20 UTCEG score recompute
  63. 2026-08-06 13:47 UTCEPSS rescore
  64. 2026-08-06 03:59 UTCEG score recompute
  65. 2026-08-05 19:17 UTCEPSS rescore
  66. 2026-08-05 03:17 UTCEG score recompute
  67. 2026-08-04 15:10 UTCEPSS rescore
  68. 2026-08-04 14:55 UTCEG score recompute
  69. 2026-08-04 10:39 UTCEPSS rescore
  70. 2026-08-03 14:13 UTCEG score recompute▼ 1.20
  71. 2026-08-03 14:12 UTCNVD updateCVSS v3 → 7.5
  72. 2026-08-03 10:36 UTCEPSS rescore
  73. 2026-08-02 08:35 UTCEG score recompute
  74. 2026-08-02 02:27 UTCEPSS rescore
  75. 2026-08-01 07:53 UTCEG score recompute

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-55685?
CVE-2026-55685 is a high vulnerability published on July 24, 2026. React Router is a router for React. In versions 7.0.0 through 7.17.0, the manifest endpoint could be accessed via unauthenticated targeted requests that would put heavy load on the server and slow down response times. This issue is a follow up to CVE-2026-42342, and does not does not impact React…
When was CVE-2026-55685 disclosed?
CVE-2026-55685 was first published in the National Vulnerability Database on July 24, 2026, with the most recent update on August 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-55685 actively exploited?
CVE-2026-55685 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 66.1% of all scored CVEs.
What is the CVSS score of CVE-2026-55685?
CVE-2026-55685 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-55685?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-55685, 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-2026-55685

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