Integer Overflow or Wraparound Affecting libyang-devel-doc package, versions <0:2.1.148-4.el10_2


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.64% (51st percentile)

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  • Snyk IDSNYK-RHEL10-LIBYANGDEVELDOC-17269894
  • published10 Jun 2026
  • disclosed14 May 2026

Introduced: 14 May 2026

CVE-2026-44673  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade RHEL:10 libyang-devel-doc to version 0:2.1.148-4.el10_2 or higher.
This issue was patched in RHSA-2026:24758.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libyang-devel-doc package and not the libyang-devel-doc package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

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 data to any libyang consumer (NETCONF server, sysrepo, etc.) can trigger a crash or potential heap corruption. This vulnerability is fixed in SO 5.2.15.

CVSS Base Scores

version 3.1