CVE catalog

CVE-2026-115327

libyang2: CVE-2026-115327

[CVE catalog]

Severity
Medium · CVSS 5.3CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Published
Source
[NVD] · [CVE record]
EPSS
0.31% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debianlibyang2bookworm2.1.30-2vulnerable
Ubuntulibyang20.040.16.105-1vulnerable
Ubuntulibyang20.040.16.105-2vulnerable
Ubuntulibyang20.040.16.105-3vulnerable
Ubuntulibyang20.040.16.105-3build1vulnerable
Ubuntulibyang22.041.0.225-1.1vulnerable
Ubuntulibyang222.042.0.112-6vulnerable
Ubuntulibyang222.042.0.112-6ubuntu1vulnerable
Ubuntulibyang222.042.0.112-6ubuntu2vulnerable
Ubuntulibyang224.042.1.30-2vulnerable
Ubuntulibyang224.042.1.30-2.1vulnerable
Ubuntulibyang224.042.1.30-2.1build1vulnerable
Ubuntulibyang224.042.1.30-2.1ubuntu0.1vulnerable
Ubuntulibyang26.103.13.6-1vulnerable
Ubuntulibyang26.103.13.6-1ubuntu1vulnerable
Ubuntulibyang26.106.1.4-1vulnerable
Ubuntulibyang26.043.13.5-2vulnerable
Ubuntulibyang26.043.13.6-1vulnerable
Ubuntulibyang26.043.13.6-1ubuntu0.1vulnerable

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debianlibyang2sourcebookworm(unfixed)not yet assignedNot reportedNot reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

  • [libyang2]Affected
    Details (2)

    • 2.1.30-2 · amd64 · bookworm

      Affected

      dsa · libyang2 · debian · bookworm; dsa · libyang2 · debian · 12

    • 2.1.30-2 · arm64 · bookworm

      Affected

      dsa · libyang2 · debian · bookworm; dsa · libyang2 · debian · 12

  • [libyang2-dev]Affected

    Source package: [libyang2]

    Details (2)

    • 2.1.30-2 · amd64 · bookworm

      Affected

      dsa · libyang2 · debian · bookworm; dsa · libyang2 · debian · 12

    • 2.1.30-2 · arm64 · bookworm

      Affected

      dsa · libyang2 · debian · bookworm; dsa · libyang2 · debian · 12

  • [libyang2-tools]Affected

    Source package: [libyang2]

    Details (2)

    • 2.1.30-2 · amd64 · bookworm

      Affected

      dsa · libyang2 · debian · bookworm; dsa · libyang2 · debian · 12

    • 2.1.30-2 · arm64 · bookworm

      Affected

      dsa · libyang2 · debian · bookworm; dsa · libyang2 · debian · 12

  • [libyang-tools]Affected

    Source package: [libyang2]

    Details (2)

    • 2.1.30-2 · all · bookworm

      Affected

      dsa · libyang2 · debian · bookworm; dsa · libyang2 · debian · 12

    • 2.1.30-2 · all · bookworm

      Affected

      dsa · libyang2 · debian · bookworm; dsa · libyang2 · debian · 12

[Debian 13 (Trixie)]

  • [libyang3]Affected

    Source package: [libyang]

    Details (4)

    • 3.12.2-1 · amd64 · trixie

      Affected

      dsa · libyang · debian · 13

    • 3.12.2-1 · arm64 · trixie

      Affected

      dsa · libyang · debian · 13

    • 3.13.6-1~bpo13+1 · amd64 · trixie-backports

      Affected

      dsa · libyang · debian · 13

    • 3.13.6-1~bpo13+1 · arm64 · trixie-backports

      Affected

      dsa · libyang · debian · 13

  • [libyang3-tools]Affected

    Source package: [libyang]

    Details (4)

    • 3.12.2-1 · amd64 · trixie

      Affected

      dsa · libyang · debian · 13

    • 3.12.2-1 · arm64 · trixie

      Affected

      dsa · libyang · debian · 13

    • 3.13.6-1~bpo13+1 · amd64 · trixie-backports

      Affected

      dsa · libyang · debian · 13

    • 3.13.6-1~bpo13+1 · arm64 · trixie-backports

      Affected

      dsa · libyang · debian · 13

  • [libyang-dev]Affected

    Source package: [libyang]

    Details (4)

    • 3.12.2-1 · amd64 · trixie

      Affected

      dsa · libyang · debian · 13

    • 3.12.2-1 · arm64 · trixie

      Affected

      dsa · libyang · debian · 13

    • 3.13.6-1~bpo13+1 · amd64 · trixie-backports

      Affected

      dsa · libyang · debian · 13

    • 3.13.6-1~bpo13+1 · arm64 · trixie-backports

      Affected

      dsa · libyang · debian · 13

Observed:

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]