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OpenAdvisories
Critical RHSA-2026:55432 1 CVE

Red Hat Security Advisory: curl security update

Published Aug 17, 2026 · Updated Oct 10, 2026

Ecosystem: Red Hat

Fixed packages 8

ReleasePackageFixed in
Red Hat · RHEL 10 enterprise_linux:10.2 curl 0:8.12.1-4.el10_2.4
Red Hat · RHEL 10 enterprise_linux:10.2 curl-debuginfo 0:8.12.1-4.el10_2.4
Red Hat · RHEL 10 enterprise_linux:10.2 curl-debugsource 0:8.12.1-4.el10_2.4
Red Hat · RHEL 10 enterprise_linux:10.2 libcurl 0:8.12.1-4.el10_2.4
Red Hat · RHEL 10 enterprise_linux:10.2 libcurl-debuginfo 0:8.12.1-4.el10_2.4
Red Hat · RHEL 10 enterprise_linux:10.2 libcurl-devel 0:8.12.1-4.el10_2.4
Red Hat · RHEL 10 enterprise_linux:10.2 libcurl-minimal 0:8.12.1-4.el10_2.4
Red Hat · RHEL 10 enterprise_linux:10.2 libcurl-minimal-debuginfo 0:8.12.1-4.el10_2.4

Vulnerabilities 1

  • Critical 9.1
    CVE-2026-8927

    env-set cross-proxy Digest auth state leak

    When reusing a libcurl handle for sequential transfers driven by environment-variable proxy configuration, libcurl fails to clear the proxy authentication state between requests. Specifically, if the initial transfer authenticates against `proxyA` using Diges…

    curl curl curl curl Debian Ubuntu Azure Linux Alpine

References

  • article
    https://access.redhat.com/security/updates/classification/#important
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2496769
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_55432.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-8927
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-8927
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-8927
  • article
    https://curl.se/docs/CVE-2026-8927.html
  • article
    https://curl.se/docs/CVE-2026-8927.json
  • article
    https://hackerone.com/reports/3744543