UBUNTU-CVE-2026-41401

libyang before 5.2.6 contains a heap use-after-free write vulnerability in lydparsersetdataflags that incorrectly updates metadata list pointers when freeing non-head default metadata entries. Attackers can trigger this vulnerability by submitting crafted YANG XML documents with specific metadata...

CVE-2026-41401 libyang - Heap Use-After-Free Write in XML Metadata Parsing

libyang before 5.2.6 contains a heap use-after-free write vulnerability in lydparsersetdataflags that incorrectly updates metadata list pointers when freeing non-head default metadata entries. Attackers can trigger this vulnerability by submitting crafted YANG XML documents with specific metadata...

EUVD-2026-31832

libyang before 5.2.6 contains a heap use-after-free write vulnerability in lydparsersetdataflags that incorrectly updates metadata list pointers when freeing non-head default metadata entries. Attackers can trigger this vulnerability by submitting crafted YANG XML documents with specific metadata...

CVE-2026-41401

CVE-2026-41401 affects libyang prior to 5.2.6, where a heap-use-after-free occurs in lyd_parser_set_data_flags due to incorrect updates to metadata list pointers when freeing non-head default metadata entries. This can be triggered by submitting crafted YANG XML documents with specific metadata a...

CVE-2026-41401 libyang - Heap Use-After-Free Write in XML Metadata Parsing

libyang before 5.2.6 contains a heap use-after-free write vulnerability in lydparsersetdataflags that incorrectly updates metadata list pointers when freeing non-head default metadata entries. Attackers can trigger this vulnerability by submitting crafted YANG XML documents with specific metadata...

CVE-2026-41401

libyang before 5.2.6 contains a heap use-after-free write vulnerability in lydparsersetdataflags that incorrectly updates metadata list pointers when freeing non-head default metadata entries. Attackers can trigger this vulnerability by submitting crafted YANG XML documents with specific metadata...

CVE-2026-41401

libyang before 5.2.6 contains a heap use-after-free write vulnerability in lydparsersetdataflags that incorrectly updates metadata list pointers when freeing non-head default metadata entries. Attackers can trigger this vulnerability by submitting crafted YANG XML documents with specific metadata...

CVE-2026-41401 libyang - Heap Use-After-Free Write in XML Metadata Parsing

libyang before 5.2.6 contains a heap use-after-free write vulnerability in lydparsersetdataflags that incorrectly updates metadata list pointers when freeing non-head default metadata entries. Attackers can trigger this vulnerability by submitting crafted YANG XML documents with specific metadata...

CVE-2026-41401

libyang before 5.2.6 contains a heap use-after-free write vulnerability in lydparsersetdataflags that incorrectly updates metadata list pointers when freeing non-head default metadata entries. Attackers can trigger this vulnerability by submitting crafted YANG XML documents with specific metadata...

PT-2026-43252

Name of the Vulnerable Software and Affected Versions libyang versions prior to 5.2.6 Description A heap use-after-free write occurs in the lyd parser set data flags function. This happens when the software incorrectly updates metadata list pointers while freeing non-head default metadata entries...

CVE-2026-41401: Use After Free

libyang before 5.2.6 contains a heap use-after-free write vulnerability in lydparsersetdataflags that incorrectly updates metadata list pointers when freeing non-head default metadata entries. Attackers can trigger this vulnerability by submitting crafted YANG XML documents with specific metadata...

libyang 安全漏洞

LibYang is an open-source YANG data modeling language parser and toolkit developed in C language by CESNET. Versions of LibYang prior to 5.2.6 contained security vulnerabilities. These vulnerabilities stemmed from a write vulnerability in the lyd parsersetdataflags function, which allowed attacke...

CVE-2026-44673 affecting package libyang for versions less than 2.1.148-2

CVE-2026-44673 affecting package libyang for versions less than 2.1.148-2. A patched version of the package is available...

ANT-2026-TZQ1KH7E · libyang · Use-After-Free

use-after-free medium CVE-2026-41401 GHSA-9f49-8x56-jmjc GHSA-v7jp-vmx6-5429 Severity Claude medium · Security research firm medium · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits...

libyang: lyb_read_string() integer overflow → heap buffer overflow

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SUSE CVE-2026-44673

libyang is a YANG data modeling language library. Prior to SO 5.2.15, lybreadstring in src/parserlyb.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...

CVE-2026-44673

A flaw was found in libyang, a YANG data modeling language library. An integer overflow in the lybreadstring function can lead to a heap buffer overflow when parsing a maliciously crafted LYB binary blob. A remote attacker, by supplying this malicious LYB data to any libyang consumer such as a...

Linux Distros Unpatched Vulnerability : CVE-2026-44673

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libyang is a YANG data modeling language library. Prior to SO 5.2.15, lybreadstring in src/parserlyb.c contains an integer overflow that results in a heap buffe...

DEBIAN-CVE-2026-44673

libyang is a YANG data modeling language library. Prior to SO 5.2.15, lybreadstring in src/parserlyb.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...

CVE-2026-44673

libyang is a YANG data modeling language library. Prior to SO 5.2.15, lybreadstring in src/parserlyb.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...