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 22× in last 7d / 74× 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 126 total refreshes for this CVE.

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

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 65.7% 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

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