CVE-2026-46579

HIGHNVD 7.57.4▼
EchelonGraph scoreMEDIUM confidence

Score 7.4 from GitHub Security Advisory (severity: HIGH) published 2026-05-29. NVD baseline CVSS 7.5; sources differ by 0.1.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

A flaw was found in the OpenShift Router. When a Route has insecureEdgeTerminationPolicy set to Allow, the HTTP frontend does not remove X-SSL-Client-* headers from incoming requests. This allows an unauthenticated attacker to send plain HTTP requests with crafted X-SSL-Client-* headers. As a result, backends relying on these headers for mutual TLS (Transport Layer Security) authentication can be bypassed, enabling the attacker to impersonate client certificate identities.

CVSS v3
7.5
EG Score
7.4(medium)
EPSS
14.9%
KEV
Not listed

Published

May 29, 2026

Last Modified

July 22, 2026

Advisory Details (2)

Auto-updated Jun 6, 2026
Patch available. Sources: redhat.
redhat

2483181 – (CVE-2026-46579) CVE-2026-46579 openshift/router: openshift/router: mTLS client certificate spoofing via unstripped X-SSL-Client headers on HTTP frontend

https://bugzilla.redhat.com/show_bug.cgi?id=2483181
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-46579

Vendor Advisories for CVE-2026-46579(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
redhatopenshift4/ose-haproxy-router-rhel9:17834456422026-07-15redhat
redhatopenshift4/ose-haproxy-router-rhel9:17816390272026-06-23redhat
redhatopenshift4/ose-haproxy-router-rhel9:17815521702026-06-23redhat
redhatopenshift4/ose-haproxy-router-rhel9:17816439672026-06-23redhat

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 9× in last 7d / 77× 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 151 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 14:31 UTCEPSS rescore
  5. 2026-07-19 02:29 UTCEPSS rescore
  6. 2026-07-18 10:04 UTCEPSS rescore
  7. 2026-07-16 17:03 UTCEPSS rescore
  8. 2026-07-16 02:19 UTCVendor advisory
  9. 2026-07-16 02:19 UTCGHSA enrichment
  10. 2026-07-15 16:57 UTCEPSS rescore
  11. 2026-07-15 12:22 UTCNVD updateCVSS v3 → 7.5
  12. 2026-07-15 11:54 UTCMITRE cvelistV5CVSS v3 → 7.4
  13. 2026-07-15 10:21 UTCNVD updateCVSS v3 → 7.5
  14. 2026-07-15 09:19 UTCMITRE cvelistV5CVSS v3 → 7.4
  15. 2026-07-15 02:26 UTCNVD updateCVSS v3 → 7.5
  16. 2026-07-15 02:00 UTCEPSS rescore
  17. 2026-07-15 01:21 UTCMITRE cvelistV5CVSS v3 → 7.4
  18. 2026-07-14 17:33 UTCVendor advisory
  19. 2026-07-14 17:33 UTCGHSA enrichment
  20. 2026-07-13 22:30 UTCEPSS rescore
  21. 2026-07-13 06:13 UTCEPSS rescore
  22. 2026-07-12 05:46 UTCEPSS rescore
  23. 2026-07-11 18:21 UTCVendor advisory
  24. 2026-07-11 18:21 UTCGHSA enrichment
  25. 2026-07-11 08:27 UTCEPSS rescore
Show 75 more
  1. 2026-07-09 19:10 UTCEPSS rescore
  2. 2026-07-08 17:33 UTCVendor advisory
  3. 2026-07-08 17:33 UTCGHSA enrichment
  4. 2026-07-08 15:16 UTCEPSS rescore
  5. 2026-07-07 13:46 UTCEPSS rescore
  6. 2026-07-06 16:27 UTCEPSS rescore
  7. 2026-07-06 02:23 UTCEPSS rescore
  8. 2026-07-05 02:30 UTCEPSS rescore
  9. 2026-07-04 06:31 UTCEPSS rescore
  10. 2026-07-02 21:36 UTCVendor advisory
  11. 2026-07-02 21:36 UTCGHSA enrichment
  12. 2026-07-02 04:51 UTCVendor advisory
  13. 2026-07-02 04:51 UTCGHSA enrichment
  14. 2026-07-01 15:07 UTCEPSS rescore
  15. 2026-07-01 14:49 UTCVendor advisory
  16. 2026-07-01 14:49 UTCGHSA enrichment
  17. 2026-07-01 01:46 UTCVendor advisory
  18. 2026-07-01 01:45 UTCGHSA enrichment
  19. 2026-06-30 23:22 UTCEPSS rescore
  20. 2026-06-30 02:12 UTCVendor advisory
  21. 2026-06-30 02:12 UTCGHSA enrichment
  22. 2026-06-29 14:06 UTCEPSS rescore
  23. 2026-06-29 14:06 UTCEPSS rescore
  24. 2026-06-29 13:19 UTCVendor advisory
  25. 2026-06-29 13:19 UTCGHSA enrichment
  26. 2026-06-28 20:28 UTCVendor advisory
  27. 2026-06-28 20:28 UTCGHSA enrichment
  28. 2026-06-28 14:07 UTCEPSS rescore
  29. 2026-06-28 07:19 UTCVendor advisory
  30. 2026-06-28 07:19 UTCGHSA enrichment
  31. 2026-06-28 04:56 UTCEPSS rescore
  32. 2026-06-28 04:56 UTCEPSS rescore
  33. 2026-06-27 18:19 UTCVendor advisory
  34. 2026-06-27 18:19 UTCGHSA enrichment
  35. 2026-06-27 05:23 UTCVendor advisory
  36. 2026-06-27 05:23 UTCGHSA enrichment
  37. 2026-06-27 03:08 UTCEPSS rescore
  38. 2026-06-26 16:23 UTCVendor advisory
  39. 2026-06-26 16:23 UTCGHSA enrichment
  40. 2026-06-25 19:22 UTCVendor advisory
  41. 2026-06-25 19:22 UTCGHSA enrichment
  42. 2026-06-25 13:49 UTCEPSS rescore
  43. 2026-06-25 06:27 UTCVendor advisory
  44. 2026-06-25 06:26 UTCGHSA enrichment
  45. 2026-06-24 15:42 UTCVendor advisory
  46. 2026-06-24 15:42 UTCGHSA enrichment
  47. 2026-06-24 14:05 UTCEPSS rescore
  48. 2026-06-23 21:33 UTCEPSS rescore
  49. 2026-06-23 21:33 UTCEPSS rescore
  50. 2026-06-23 12:00 UTCNVD updateCVSS v3 → 7.5
  51. 2026-06-23 10:33 UTCMITRE cvelistV5CVSS v3 → 7.4
  52. 2026-06-23 09:33 UTCNVD updateCVSS v3 → 7.5
  53. 2026-06-22 14:25 UTCEPSS rescore
  54. 2026-06-22 14:25 UTCEPSS rescore
  55. 2026-06-21 14:56 UTCEPSS rescore
  56. 2026-06-21 14:56 UTCEPSS rescore
  57. 2026-06-21 01:59 UTCEPSS rescore
  58. 2026-06-21 01:59 UTCEPSS rescore
  59. 2026-06-19 19:26 UTCEPSS rescore
  60. 2026-06-19 19:26 UTCEPSS rescore
  61. 2026-06-18 22:45 UTCGHSA enrichment
  62. 2026-06-18 17:52 UTCEPSS rescore
  63. 2026-06-18 17:52 UTCEPSS rescore
  64. 2026-06-17 17:53 UTCEPSS rescore
  65. 2026-06-17 17:45 UTCGHSA enrichment
  66. 2026-06-17 04:12 UTCGHSA enrichment
  67. 2026-06-16 17:53 UTCEPSS rescore
  68. 2026-06-16 15:18 UTCGHSA enrichment
  69. 2026-06-16 01:45 UTCGHSA enrichment
  70. 2026-06-15 17:49 UTCEPSS rescore
  71. 2026-06-15 12:52 UTCGHSA enrichment
  72. 2026-06-14 23:58 UTCGHSA enrichment
  73. 2026-06-14 11:05 UTCGHSA enrichment
  74. 2026-06-13 23:00 UTCEPSS rescore
  75. 2026-06-13 22:11 UTCGHSA enrichment

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Frequently asked(5)

What is CVE-2026-46579?
CVE-2026-46579 is a high vulnerability published on May 29, 2026. A flaw was found in the OpenShift Router. When a Route has insecureEdgeTerminationPolicy set to Allow, the HTTP frontend does not remove X-SSL-Client- headers from incoming requests. This allows an unauthenticated attacker to send plain HTTP requests with crafted X-SSL-Client- headers. As a result,…
When was CVE-2026-46579 disclosed?
CVE-2026-46579 was first published in the National Vulnerability Database on May 29, 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-2026-46579 actively exploited?
CVE-2026-46579 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 14.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-46579?
CVE-2026-46579 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.4.
How do I remediate CVE-2026-46579?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46579, 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.

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