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OpenAdvisories
High RHSA-2026:54070 1 CVE

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

Published Aug 12, 2026 · Updated Oct 6, 2026

Ecosystem: Red Hat

Fixed packages 3

ReleasePackageFixed in
Red Hat · Hardened Images 1 hummingbird:1 libssh2 0:1.11.1-10.4.hum1
Red Hat · Hardened Images 1 hummingbird:1 libssh2-devel 0:1.11.1-10.4.hum1
Red Hat · Hardened Images 1 hummingbird:1 libssh2-docs 0:1.11.1-10.4.hum1

Vulnerabilities 1

  • High 7.0
    CVE-2026-58050

    libssh2 - Integer Overflow in publickey Subsystem Attribute Allocation

    libssh2 through 1.11.1 reads an attacker-controlled 32-bit attribute count from a publickey-subsystem response and uses it in the allocation num_attrs * sizeof(libssh2_publickey_attribute) without bounds checking, so on 32-bit platforms the multiplication ove…

    libssh2 libssh2 rust libssh2 Debian Ubuntu Azure Linux Alpine Wolfi

References

  • report
    https://access.redhat.com/security/cve/CVE-2026-58050
  • 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_54070.json
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2493955
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-58050
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-58050
  • 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-integer-overflow-in-publickey-subsystem-attribute-allocation