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libyang: libyang: Denial of Service or arbitrary code execution via maliciously crafted LYB binary blob

🗓️ 03 Aug 2026 12:06:22Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 7 Views

Libyang lyb_read_string overflow on LYB data may cause DoS or code execution via heap corruption.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux10.0aarch64libyang2.1.148-2.el10_0.1libyang-2.1.148-2.el10_0.1.aarch64.rpm
Red Hat Enterprise Linux10.0ppc64lelibyang2.1.148-2.el10_0.1libyang-2.1.148-2.el10_0.1.ppc64le.rpm
Red Hat Enterprise Linux10.0s390xlibyang2.1.148-2.el10_0.1libyang-2.1.148-2.el10_0.1.s390x.rpm
Red Hat Enterprise Linux10.0x86_64libyang2.1.148-2.el10_0.1libyang-2.1.148-2.el10_0.1.x86_64.rpm
Red Hat Enterprise Linux10.0aarch64libyang-debuginfo2.1.148-2.el10_0.1libyang-debuginfo-2.1.148-2.el10_0.1.aarch64.rpm
Red Hat Enterprise Linux10.0ppc64lelibyang-debuginfo2.1.148-2.el10_0.1libyang-debuginfo-2.1.148-2.el10_0.1.ppc64le.rpm
Red Hat Enterprise Linux10.0s390xlibyang-debuginfo2.1.148-2.el10_0.1libyang-debuginfo-2.1.148-2.el10_0.1.s390x.rpm
Red Hat Enterprise Linux10.0x86_64libyang-debuginfo2.1.148-2.el10_0.1libyang-debuginfo-2.1.148-2.el10_0.1.x86_64.rpm
Red Hat Enterprise Linux10.0aarch64libyang-debugsource2.1.148-2.el10_0.1libyang-debugsource-2.1.148-2.el10_0.1.aarch64.rpm
Red Hat Enterprise Linux10.0ppc64lelibyang-debugsource2.1.148-2.el10_0.1libyang-debugsource-2.1.148-2.el10_0.1.ppc64le.rpm
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07 Aug 2026 02:41Current
6.5Medium risk
Vulners AI Score6.5
CVSS 3.17.5
EPSS0.00519
SSVC
7