UBUNTU-CVE-2026-115327

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Source
https://ubuntu.com/security/CVE-2026-115327
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115327.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-115327
Upstream
Published
2026-10-26T00:00:00Z
Modified
2026-10-27T04:17:43Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • 6.0 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

libyang through 6.4.13 contains an uninitialized pointer free vulnerability in lydxml_env_netconf_rpc() in src/parser_xml.c when parsing NETCONF rpc action envelopes. Peers with a NETCONF session can send an action element containing non-whitespace text via lyd_parse_op() to crash servers like netopeer2 or corrupt the heap.

References

Affected packages

Ubuntu:20.04:LTS
libyang

Package

Name
libyang
Purl
pkg:deb/ubuntu/libyang?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.16.105-1
0.16.105-2
0.16.105-3
0.16.105-3build1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libyang-cpp0.16",
            "binary_version":  "0.16.105-3build1"
        },
        {
            "binary_name":  "libyang0.16",
            "binary_version":  "0.16.105-3build1"
        },
        {
            "binary_name":  "python3-yang",
            "binary_version":  "0.16.105-3build1"
        },
        {
            "binary_name":  "yang-tools",
            "binary_version":  "0.16.105-3build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115327.json"
Ubuntu:22.04:LTS
libyang

Package

Name
libyang
Purl
pkg:deb/ubuntu/libyang?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.0.225-1.1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libyang-cpp1",
            "binary_version":  "1.0.225-1.1"
        },
        {
            "binary_name":  "libyang-tools",
            "binary_version":  "1.0.225-1.1"
        },
        {
            "binary_name":  "libyang1",
            "binary_version":  "1.0.225-1.1"
        },
        {
            "binary_name":  "yang-tools",
            "binary_version":  "1.0.225-1.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115327.json"
libyang2

Package

Name
libyang2
Purl
pkg:deb/ubuntu/libyang2?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.0.112-6
2.0.112-6ubuntu1
2.0.112-6ubuntu2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libyang-tools",
            "binary_version":  "2.0.112-6ubuntu2"
        },
        {
            "binary_name":  "libyang2",
            "binary_version":  "2.0.112-6ubuntu2"
        },
        {
            "binary_name":  "libyang2-tools",
            "binary_version":  "2.0.112-6ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115327.json"
Ubuntu:24.04:LTS
libyang2

Package

Name
libyang2
Purl
pkg:deb/ubuntu/libyang2?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.1.30-2
2.1.30-2.1
2.1.30-2.1build1
2.1.30-2.1ubuntu0.1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libyang-tools",
            "binary_version":  "2.1.30-2.1ubuntu0.1"
        },
        {
            "binary_name":  "libyang2-tools",
            "binary_version":  "2.1.30-2.1ubuntu0.1"
        },
        {
            "binary_name":  "libyang2t64",
            "binary_version":  "2.1.30-2.1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115327.json"
Ubuntu:26.04:LTS
libyang

Package

Name
libyang
Purl
pkg:deb/ubuntu/libyang?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.13.5-2
3.13.6-1
3.13.6-1ubuntu0.1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libyang3",
            "binary_version":  "3.13.6-1ubuntu0.1"
        },
        {
            "binary_name":  "libyang3-tools",
            "binary_version":  "3.13.6-1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115327.json"
Ubuntu:26.10
libyang

Package

Name
libyang
Purl
pkg:deb/ubuntu/libyang?arch=source&distro=stonking

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.13.6-1
3.13.6-1ubuntu1
6.*
6.1.4-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libyang-tools",
            "binary_version":  "6.1.4-1"
        },
        {
            "binary_name":  "libyang5",
            "binary_version":  "6.1.4-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115327.json"