CVE-2026-46579

HIGHNVD 7.57.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.6% (48th percentile of EPSS-scored CVEs). GitHub Security Advisory CVSS 7.4 is lower than this score; a lower GitHub score revises it only when its advisory is newer than the CVE record's last change, and this advisory (published 2026-05-29) is not newer than that change (2026-09-10), so it does not.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 7.5Exploit: None knownExposed services: Not assessed

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
7.5HIGHmedium confidence
EG Risk
34
EG Risk 34/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.6% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.6%
EPSS %ILE
48th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
0.6% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

May 29, 2026

Last Modified

September 10, 2026

Advisory Details (2)

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

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
Red HatMentions a patch (unverified)

cve-details

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

Patch Availability(11)

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 10× in last 7d / 32× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 487 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 387 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  2. 2026-10-18 03:37 UTCEG score recompute
  3. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  4. 2026-10-17 13:16 UTCEG score recompute
  5. 2026-10-17 13:16 UTCVendor advisory
  6. 2026-10-17 13:16 UTCGHSA enrichmentGHSA-ccmj-8c3p-4qwj · GitHub severity HIGH · GitHub CVSS 7.4
  7. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  8. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  9. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  10. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  11. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  12. 2026-10-12 16:02 UTCEG score recompute
  13. 2026-10-11 19:45 UTCEG score recompute
  14. 2026-10-11 17:00 UTCEG score recompute
  15. 2026-10-11 14:25 UTCEG score recompute
  16. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  17. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  18. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  19. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  20. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  21. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  22. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  23. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  24. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  25. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.6% · 47th percentile
Show 75 more
  1. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  2. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  3. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  4. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  5. 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  6. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  7. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  8. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  9. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  10. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  11. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  12. 2026-09-14 06:28 UTCEG score recompute
  13. 2026-09-14 06:28 UTCVendor advisory
  14. 2026-09-14 06:28 UTCGHSA enrichmentGHSA-ccmj-8c3p-4qwj · GitHub severity HIGH · GitHub CVSS 7.4
  15. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  16. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  17. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  18. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  19. 2026-09-10 13:38 UTCVendor advisory
  20. 2026-09-10 13:38 UTCGHSA enrichmentGHSA-ccmj-8c3p-4qwj · GitHub severity HIGH · GitHub CVSS 7.4
  21. 2026-09-10 12:26 UTCEG score recompute
  22. 2026-09-10 12:26 UTCVendor advisory
  23. 2026-09-10 12:26 UTCGHSA enrichmentGHSA-ccmj-8c3p-4qwj · GitHub severity HIGH · GitHub CVSS 7.4
  24. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  25. 2026-09-09 15:32 UTCVendor advisory
  26. 2026-09-09 15:32 UTCGHSA enrichmentGHSA-ccmj-8c3p-4qwj · GitHub severity HIGH · GitHub CVSS 7.4
  27. 2026-09-09 14:21 UTCVendor advisory
  28. 2026-09-09 14:21 UTCGHSA enrichmentGHSA-ccmj-8c3p-4qwj · GitHub severity HIGH · GitHub CVSS 7.4
  29. 2026-09-09 12:38 UTCEG score recompute
  30. 2026-09-09 12:38 UTCVendor advisory
  31. 2026-09-09 12:38 UTCGHSA enrichmentGHSA-ccmj-8c3p-4qwj · GitHub severity HIGH · GitHub CVSS 7.4
  32. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  33. 2026-09-08 10:59 UTCVendor advisory
  34. 2026-09-08 10:59 UTCGHSA enrichmentGHSA-ccmj-8c3p-4qwj · GitHub severity HIGH · GitHub CVSS 7.4
  35. 2026-09-08 10:30 UTCVendor advisory
  36. 2026-09-08 10:30 UTCGHSA enrichmentGHSA-ccmj-8c3p-4qwj · GitHub severity HIGH · GitHub CVSS 7.4
  37. 2026-09-08 09:56 UTCVendor advisory
  38. 2026-09-08 09:56 UTCGHSA enrichmentGHSA-ccmj-8c3p-4qwj · GitHub severity HIGH · GitHub CVSS 7.4
  39. 2026-09-08 09:30 UTCVendor advisory
  40. 2026-09-08 09:30 UTCGHSA enrichmentGHSA-ccmj-8c3p-4qwj · GitHub severity HIGH · GitHub CVSS 7.4
  41. 2026-09-07 17:15 UTCVendor advisory
  42. 2026-09-07 17:15 UTCGHSA enrichmentGHSA-ccmj-8c3p-4qwj · GitHub severity HIGH · GitHub CVSS 7.4
  43. 2026-09-07 16:26 UTCEG score recompute
  44. 2026-09-07 16:26 UTCVendor advisory
  45. 2026-09-07 16:26 UTCGHSA enrichmentGHSA-ccmj-8c3p-4qwj · GitHub severity HIGH · GitHub CVSS 7.4
  46. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  47. 2026-09-07 13:50 UTCVendor advisory
  48. 2026-09-07 13:49 UTCGHSA enrichmentGHSA-ccmj-8c3p-4qwj · GitHub severity HIGH · GitHub CVSS 7.4
  49. 2026-09-07 12:38 UTCVendor advisory
  50. 2026-09-07 12:37 UTCGHSA enrichmentGHSA-ccmj-8c3p-4qwj · GitHub severity HIGH · GitHub CVSS 7.4
  51. 2026-09-06 18:21 UTCVendor advisory
  52. 2026-09-06 18:21 UTCGHSA enrichmentGHSA-ccmj-8c3p-4qwj · GitHub severity HIGH · GitHub CVSS 7.4
  53. 2026-09-06 17:24 UTCVendor advisory
  54. 2026-09-06 17:24 UTCGHSA enrichmentGHSA-ccmj-8c3p-4qwj · GitHub severity HIGH · GitHub CVSS 7.4
  55. 2026-09-06 16:39 UTCEG score recompute
  56. 2026-09-06 16:39 UTCVendor advisory
  57. 2026-09-06 16:39 UTCGHSA enrichmentGHSA-ccmj-8c3p-4qwj · GitHub severity HIGH · GitHub CVSS 7.4
  58. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  59. 2026-09-05 12:45 UTCVendor advisory
  60. 2026-09-05 12:44 UTCGHSA enrichmentGHSA-ccmj-8c3p-4qwj · GitHub severity HIGH · GitHub CVSS 7.4
  61. 2026-09-05 12:22 UTCVendor advisory
  62. 2026-09-05 12:22 UTCGHSA enrichmentGHSA-ccmj-8c3p-4qwj · GitHub severity HIGH · GitHub CVSS 7.4
  63. 2026-09-05 11:58 UTCEG score recompute
  64. 2026-09-05 11:58 UTCVendor advisory
  65. 2026-09-05 11:58 UTCGHSA enrichmentGHSA-ccmj-8c3p-4qwj · GitHub severity HIGH · GitHub CVSS 7.4
  66. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  67. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  68. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  69. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  70. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  71. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  72. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  73. 2026-08-26 16:23 UTCEG score recompute
  74. 2026-08-26 16:23 UTCVendor advisory
  75. 2026-08-26 16:23 UTCGHSA enrichmentGHSA-ccmj-8c3p-4qwj · GitHub severity HIGH · GitHub CVSS 7.4

Frequently asked(5)

What is CVE-2026-46579?
CVE-2026-46579 is a high-severity vulnerability; its CVE record was 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 made public?
CVE-2026-46579 was made public on April 17, 2026: that is the date its CVE record's CNA, Red Hat, Inc., gives for when the vulnerability was made public. The CVE record itself was published on May 29, 2026. EchelonGraph's copy of the record carries a last-modified date of September 10, 2026; the record at its source may have been updated since.
Is CVE-2026-46579 actively exploited?
CVE-2026-46579 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (48th percentile of EPSS-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?
A fix for CVE-2026-46579 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-46579 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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