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High ELSA-2026-25051 1 CVE

Important: libyang security update (Oracle Linux 9)

Published Jun 23, 2026 · Updated Jun 23, 2026

Ecosystem: Oracle Linux

Summary

[2.1.148-1.1]
- Fix integer overflow and OOM in LYB parser string/value reading
- Resolves: RHEL-177019

Fixed packages 3

ReleasePackageFixed in
Oracle Linux · 9 libyang 0:2.1.148-1.el9_8.1
Oracle Linux · 9 libyang-devel 0:2.1.148-1.el9_8.1
Oracle Linux · 9 libyang-devel-doc 0:2.1.148-1.el9_8.1

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