CVE-2026-46579

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 63% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 4 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.

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
7.5(medium)
EG Risk
34(Track)
EG Risk 34/100SSVC: 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%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
37%
KEV
Not listed

Published

May 29, 2026

Last Modified

August 26, 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(12)

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

Patch Availability(11)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatopenshift4/ose-haproxy-router-rhel9:17843214652026-08-06redhat
redhatopenshift4/ose-haproxy-router:17843238912026-08-06redhat
redhatopenshift4/ose-haproxy-router:17845806462026-07-30redhat
redhatopenshift4/ose-haproxy-router:17845876492026-07-30redhat
redhatopenshift4/ose-haproxy-router-rhel9:17843316382026-07-30redhat
redhatopenshift4/ose-haproxy-router:17840567342026-07-23redhat
redhatopenshift4/ose-haproxy-router-rhel9:17837193772026-07-22redhat
redhatopenshift4/ose-haproxy-router-rhel9:17834456422026-07-15redhat
redhatopenshift4/ose-haproxy-router-rhel9:17816439672026-06-23redhat
redhatopenshift4/ose-haproxy-router-rhel9:17816390272026-06-23redhat
redhatopenshift4/ose-haproxy-router-rhel9:17815521702026-06-23redhat

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 32× in last 7d / 199× 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 394 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

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 August 26, 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 0% probability of exploitation in the next 30 days, which ranks it in the top 62.8% of all scored CVEs.
What is the CVSS score of CVE-2026-46579?
CVE-2026-46579 has a CVSS v3 base score of 7.5 (NVD).
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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