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Highest advisory severityHigh 2 vendors · 2 advisories

CVE-2026-22747

CVE-2026-22747: 2 tracked advisory records across Red Hat, VMware. Compare vendor sources and published fix guidance.

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

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Vendor advisory comparison

Red Hat

1 advisory
  • Advisory severityHigh8.1

    High [CVE-2026-22747] User impersonation via malformed X.509 certificate Common Name (CN) values

    CVE-2026-22747Source published

    User impersonation via malformed X.509 certificate Common Name (CN) values. Red Hat rates this important (CVSS 8.1). Weakness: CWE-295. No fix erratum has been published yet; monitor the Red Hat CVE page and apply the RHSA when released.

    Related products — impact not confirmed
    • Red Hat Enterprise Linux
    Source-reported affected versions
    Affected-version details not available in this record.
    Source-reported fixed versions
    No fixed-version detail extracted. This does not mean no fix exists.
    Mitigation guidance
    • Red Hat rates this important; a fix erratum may not be out yet — apply the RHSA as soon as it publishes.
    Full advisory and evidenceOpen source bulletin

VMware

1 advisory
  • Advisory severityMedium6.8

    Medium [CVE-2026-22747] Unauthorized User Impersonation when Using X.509 Client Certificates

    CVE-2026-22747Source published Source updated

    Vulnerability in Spring Spring Security. SubjectX500PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an attacker impersonating another user. This issue affects Spring Security: from 7.0.0 through 7.0.4.

    Affected products in this advisory
    • Spring Security
    Source-reported affected versions
    • Spring Security 7.0.0 through 7.0.4
    Source-reported fixed versions
    No fixed-version detail extracted. This does not mean no fix exists.
    Mitigation guidance
    No mitigation guidance extracted; consult the source.
    Full advisory and evidenceOpen source bulletin

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