CVE-2026-42371

MEDIUMNVD 5.15.1—
EchelonGraph scoreMEDIUM confidence

Score 5.1 from GitHub Security Advisory published 2026-04-27. NVD baseline CVSS 5.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.1
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.1Exploit: NoneExposed: 0

A fix is available — apply it.

uriparser before 1.0.1 has numeric truncation in text range comparison, if an application accepts URIs with a length in gigabytes.

CVSS v3
5.1
EG Score
5.1(medium)
EPSS
6.9%
KEV
Not listed

Published

April 27, 2026

Last Modified

May 18, 2026

References (3)

Vendor Advisories for CVE-2026-42371(1)

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
redhaturiparser-main-1.0.1-1.hum12026-04-30redhat

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.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 32× 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 102 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-42371?
CVE-2026-42371 is a medium vulnerability published on April 27, 2026. uriparser before 1.0.1 has numeric truncation in text range comparison, if an application accepts URIs with a length in gigabytes.
When was CVE-2026-42371 disclosed?
CVE-2026-42371 was first published in the National Vulnerability Database on April 27, 2026, with the most recent update on May 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42371 actively exploited?
CVE-2026-42371 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 6.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-42371?
CVE-2026-42371 has a CVSS v3 base score of 5.1 (NVD).
How do I remediate CVE-2026-42371?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42371, 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

Explore the affected products and dependency analysis for CVE-2026-42371

Explore →

Is Your Infrastructure Affected by CVE-2026-42371?

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

Start Free Scan →Browse All CVEs