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01 Record

CVE-2026-46579

Openshift/router: openshift/router: mtls client certificate spoofing via unstripped x-ssl-client headers on http frontend

HighPUBLISHEDCNA: redhat
CNA base score7.4 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
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02 Description

Openshift/router: openshift/router: mtls client certificate spoofing via unstripped x-ssl-client headers on http frontend

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.44% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 38.5% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-09-10.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-05-29 09:50Z5 MO AGO
Last updated
2026-09-10 12:04Z1 MO AGO
Reserved
2026-05-28
Assigning CNA
redhat
Record state
PUBLISHED
Severity
High (CVSS 7.4)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Weaknesses
  • CWE-287Improper AuthenticationClass
Data version
5.2
Document digest
a61ef5eb04f66acceff3055d66ccf6510038dcfa8ae2477ff698c4b25de9625b

05 Affected products

VendorProductVersionsPlatforms
Red HatRed Hat OpenShift Container Platform 4.12Not specified—
Red HatRed Hat OpenShift Container Platform 4.13Not specified—
Red HatRed Hat OpenShift Container Platform 4.14Not specified—
Red HatRed Hat OpenShift Container Platform 4.15Not specified—
Red HatRed Hat OpenShift Container Platform 4.16Not specified—
Red HatRed Hat OpenShift Container Platform 4.17Not specified—
Red HatRed Hat OpenShift Container Platform 4.18Not specified—
Red HatRed Hat OpenShift Container Platform 4.19Not specified—
Red HatRed Hat OpenShift Container Platform 4.20Not specified—
Red HatRed Hat OpenShift Container Platform 4.21Not specified—
Red HatRed Hat OpenShift Container Platform 4.22Not specified—

06 References