DEBIAN-CVE-2026-71290

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Source
https://security-tracker.debian.org/tracker/CVE-2026-71290
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-71290.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-71290
Upstream
Published
2026-08-11T21:17:51Z
Modified
2026-09-01T17:00:08Z
Severity
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Debian:14 / httpcomponents-core5

Package

Name
httpcomponents-core5
Purl
pkg:deb/debian/httpcomponents-core5?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.2.2-1
5.2.2-2
5.4-1
5.4.2-1
5.4.2-1.1
5.4.2-2
5.4.3-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-71290.json"