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High RHSA-2026:51368 1 CVE

Red Hat Security Advisory: libyang security update

Published Aug 7, 2026 · Updated Sep 9, 2026

Ecosystem: Red Hat

Fixed packages 2

ReleasePackageFixed in
Red Hat · RHEL 8.6 AUS rhel_aus:8.6::appstream libyang 0:1.0.184-1.el8_6.1
Red Hat · RHEL 8.6 EUS Long Life rhel_eus_long_life:8.6::appstream libyang 0:1.0.184-1.el8_6.1

Vulnerabilities 1

  • High 7.5
    CVE-2026-44673

    libyang: lyb_read_string() integer overflow → heap buffer overflow

    libyang is a YANG data modeling language library. Prior to SO 5.2.15, lyb_read_string() in src/parser_lyb.c contains an integer overflow that results in a heap buffer overflow when parsing a maliciously crafted LYB binary blob. An attacker who can supply LYB …

    CESNET libyang libyang libyang2 Debian Azure Linux

References

  • article
    https://access.redhat.com/security/updates/classification/#important
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2477617
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_51368.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-44673
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-44673
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-44673
  • article
    https://github.com/CESNET/libyang/security/advisories/GHSA-vw2p-pq79-92xh