Skip to content
OpenAdvisories
Medium RHSA-2026:46535 1 CVE

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Published Jul 28, 2026 · Updated Oct 6, 2026

Ecosystem: Red Hat

Fixed packages 3

ReleasePackageFixed in
Red Hat · Hardened Images 1 hummingbird:1 libssh2 0:1.11.1-10.1.hum1
Red Hat · Hardened Images 1 hummingbird:1 libssh2-devel 0:1.11.1-10.1.hum1
Red Hat · Hardened Images 1 hummingbird:1 libssh2-docs 0:1.11.1-10.1.hum1

Vulnerabilities 1

  • Medium 6.5
    CVE-2026-58051

    libssh2 - Free of Uninitialized Pointer in publickey List Cleanup

    libssh2 through 1.11.1 grows its publickey list with SSH2_REALLOC but does not zero-initialize new entries before parsing populates them, so a parse failure reaching the cleanup path leaves libssh2_publickey_list_free operating on an uninitialized entry. A ma…

    libssh2 libssh2 rust libssh2 Debian Ubuntu Azure Linux Alpine Wolfi

References

  • report
    https://access.redhat.com/security/cve/CVE-2026-58051
  • article
    https://access.redhat.com/security/updates/classification/
  • article
    https://images.redhat.com/
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_46535.json
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2493950
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-58051
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-58051
  • article
    https://github.com/bikini/exploitarium/tree/main/libssh2-publickey-list-calc-poc
  • article
    https://github.com/libssh2/libssh2/blob/master/src/publickey.c
  • article
    https://www.vulncheck.com/advisories/libssh2-free-of-uninitialized-pointer-in-publickey-list-cleanup