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OpenAdvisories
High RHSA-2026:77255 6 CVEs

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Published Oct 14, 2026 · Updated Nov 13, 2026

Ecosystem: Red Hat

Fixed packages 4

ReleasePackageFixed in
Red Hat · Hardened Images 1 hummingbird:1 curl 0:8.22.0-1.1.hum1
Red Hat · Hardened Images 1 hummingbird:1 libcurl 0:8.22.0-1.1.hum1
Red Hat · Hardened Images 1 hummingbird:1 libcurl-devel 0:8.22.0-1.1.hum1
Red Hat · Hardened Images 1 hummingbird:1 libcurl-minimal 0:8.22.0-1.1.hum1

Vulnerabilities 6

  • High 7.5
    CVE-2025-9086

    Out of bounds read for cookie path

    1. A cookie is set using the `secure` keyword for `https://target` 2. curl is redirected to or otherwise made to speak with `http://target` (same hostname, but using clear text HTTP) using the same cookie set 3. The same cookie name is set - but with only a s…

    curl curl curl curl Debian Ubuntu Alpine
  • Medium 6.5
    CVE-2026-1965

    bad reuse of HTTP Negotiate connection

    libcurl can in some circumstances reuse the wrong connection when asked to do an Negotiate-authenticated HTTP or HTTPS request. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When …

    curl curl curl curl Debian Ubuntu Azure Linux Alpine
  • Medium 6.5
    CVE-2026-3784

    wrong proxy connection reuse with credentials

    curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a server, even if the new request uses different credentials for the HTTP proxy. The proper behavior is to create or use a separate connection.

    curl curl curl curl Debian Ubuntu Azure Linux Alpine
  • Medium 6.3
    CVE-2025-14017

    broken TLS options for threaded LDAPS

    When doing multi-threaded LDAPS transfers (LDAP over TLS) with libcurl, changing TLS options in one thread would inadvertently change them globally and therefore possibly also affect other concurrently setup transfers. Disabling certificate verification for a…

    curl curl curl curl Debian Ubuntu Azure Linux Alpine
  • Medium 5.3
    CVE-2025-14819

    OpenSSL partial chain store policy bypass

    When doing TLS related transfers with reused easy or multi handles and altering the `CURLSSLOPT_NO_PARTIALCHAIN` option, libcurl could accidentally reuse a CA store cached in memory for which the partial chain option was reversed. Contrary to the user's wishe…

    curl curl curl curl Debian Ubuntu Alpine
  • Medium 5.3
    CVE-2026-3783

    token leak with redirect and netrc

    When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer performs a redirect to a second URL, curl could leak that token to the second hostname under some circumstances. If the hostname that the first request is redirected to has informa…

    curl curl curl curl Debian Ubuntu Azure Linux Alpine

References

  • article
    https://images.redhat.com/
  • report
    https://access.redhat.com/security/cve/CVE-2025-9086
  • article
    https://access.redhat.com/security/updates/classification/
  • report
    https://access.redhat.com/security/cve/CVE-2025-14819
  • report
    https://access.redhat.com/security/cve/CVE-2026-3783
  • report
    https://access.redhat.com/security/cve/CVE-2026-3784
  • report
    https://access.redhat.com/security/cve/CVE-2026-1965
  • report
    https://access.redhat.com/security/cve/CVE-2025-14017
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_77255.json
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2394750
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-9086
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-9086
  • article
    https://curl.se/docs/CVE-2025-9086.html
  • article
    https://curl.se/docs/CVE-2025-9086.json
  • article
    https://github.com/curl/curl/commit/c6ae07c6a541e0e96d0040afb6
  • article
    https://hackerone.com/reports/3294999
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2427870
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-14017
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-14017
  • article
    https://curl.se/docs/CVE-2025-14017.html
  • article
    https://curl.se/docs/CVE-2025-14017.json
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2426408
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-14819
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-14819
  • article
    https://curl.se/docs/CVE-2025-14819.html
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2446448
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-1965
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-1965
  • article
    https://curl.se/docs/CVE-2026-1965.html
  • article
    https://curl.se/docs/CVE-2026-1965.json
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2446450
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-3783
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-3783
  • article
    http://www.openwall.com/lists/oss-security/2026/03/11/2
  • article
    https://curl.se/docs/CVE-2026-3783.html
  • article
    https://curl.se/docs/CVE-2026-3783.json
  • article
    https://hackerone.com/reports/3583983
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2446449
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-3784