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Highest advisory severityCritical 2 vendors · 2 advisories

CVE-2026-71290

CVE-2026-71290: 2 tracked advisory records across Apache, Red Hat. 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

Apache

1 advisory
  • Advisory severityCritical9.1

    Critical [CVE-2026-71290] Apache HttpComponents Client: TLS hostname verification silently disabled on the async transport (default config, MITM)

    CVE-2026-71290Source published Source updated

    Improper TLS hostname verification vulnerability in Apache HttpComponents Client 5.4 or newer. HostnameVerificationPolicy#BUILTIN setting has no effect when used with the async version of HttpClient. An attacker that can intercept and modify traffic between the client and the server can impersonate the server by presenting a valid certificate for a different domain. Please note the classic version of HttpClient is not affected by this vulnerability. Affected users are recommended to upgrade to at least version 5.6.4, which fixes the issue.

    Affected products in this advisory
    • Apache HttpComponents Client
    Source-reported affected versions
    • Apache HttpComponents Client 5.4-alpha through 5.6.3
    Source-reported fixed versions
    • 5.6.4
    Mitigation guidance
    • Affected users are recommended to upgrade to at least version 5.6.4, which fixes the issue.
    Full advisory and evidenceOpen source bulletin

Red Hat

1 advisory
  • Advisory severityHigh8.1

    High [CVE-2026-71290] Server impersonation via improper TLS hostname verification

    CVE-2026-71290Source published Source updated

    Improper TLS hostname verification vulnerability in Apache HttpComponents Client 5.4 or newer. HostnameVerificationPolicy#BUILTIN setting has no effect when used with the async version of HttpClient. An attacker that can intercept and modify traffic between the client and the server can impersonate the server by presenting a valid certificate for a different domain. Please note the classic version of HttpClient is not affected by this vulnerability. Affected users are recommended to upgrade to at least version 5.6.4, which fixes the issue. A flaw was found in the asynchronous version of Apache HttpComponents Client. This improper Transport Layer Security (TLS) hostname verification vulnerability allows a remote attacker to intercept and modify network traffic. An attacker positioned to…

    Affected products in this advisory
    • Red Hat build of Apache Camel 4 for Quarkus 3
    • Red Hat build of Apicurio Registry 3
    • Red Hat build of Debezium 3
    • Red Hat OpenShift Dev Spaces
    Source-reported affected versions
    Affected-version details not available in this record.
    Source-reported fixed versions
    • 5.6.4
    Mitigation guidance
    • Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    Full advisory and evidenceOpen source bulletin

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