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CVE-2026-71290

🗓️ 11 Aug 2026 20:33:56Reported by Debian Security Bug TrackerType 
debiancve
 debiancve🔗 security-tracker.debian.org👁 16 Views

Improper TLS hostname verification in async Apache HttpClient 5.4+ enables server impersonation via certificate mismatch.

Related
Packages
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IBM Security Bulletins		Security Bulletin: IBM App Connect Enterprise is vulnerable to Missing Release of Resource after Effective Lifetime and Improper Certificate Validation due to HttpClient (CVE-2026-64607 & CVE-2026-71290)
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IBM Security Bulletins		Security Bulletin: IBM Maximo Application Suite uses httpclient5-5.6.3.jar which is vulnerable to CVE-2026-71290
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Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Debian14allhttpcomponents-core55.4.4-1httpcomponents-core5_5.4.4-1_all.deb
Debian999allhttpcomponents-core55.4.4-1httpcomponents-core5_5.4.4-1_all.deb

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11 Aug 2026 20:33Current
7.1High risk
Vulners AI Score7.1
CVSS 3.19.1
EPSS0.00331
SSVC
Apache HttpComponentsTLS hostname verificationasync HttpClientcertificate impersonationserver impersonation
16