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SRC: CVELISTV5 / SYNC: T-5M / LAG: 8M / REC: 386,746 / REV: C6-1C / V4

01 RecordSTATE: PUBLISHED

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

02 Description

CNA: redhat

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

03 Exploitation and scoring

SRC: CISA, FIRST, NVD, RED HAT

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

0.45% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 37.0% 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 2026-08-25.

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

SCHEMA: 5.2

Published

2026-05-29 09:50Z3 MO AGO

Last updated

2026-08-26 12:04Z9 DAYS 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

71b12582ccad0c2bb1e1649fc677540254f725bce6a5937ba36219aab339f3b4

05 Affected products

PAIRS: 11

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

REFS: 14

access.redhat.comRHSA-2026:27009https://access.redhat.com/errata/RHSA-2026:27009vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:27044https://access.redhat.com/errata/RHSA-2026:27044vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:27063https://access.redhat.com/errata/RHSA-2026:27063vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:37580https://access.redhat.com/errata/RHSA-2026:37580vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:40022https://access.redhat.com/errata/RHSA-2026:40022vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:40828https://access.redhat.com/errata/RHSA-2026:40828vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:43227https://access.redhat.com/errata/RHSA-2026:43227vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:43253https://access.redhat.com/errata/RHSA-2026:43253vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:43331https://access.redhat.com/errata/RHSA-2026:43331vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:47703https://access.redhat.com/errata/RHSA-2026:47703vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:47728https://access.redhat.com/errata/RHSA-2026:47728vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-46579vdb-entryx_refsource_REDHAT
bugzilla.redhat.comRHBZ#2483181https://bugzilla.redhat.com/show_bug.cgi?id=2483181issue-trackingx_refsource_REDHAT
security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46579.jsonx_sadp-csaf-vex