CVE-2026-63676 is listed by USN-8925-1: YAML-LibYAML vulnerabilities.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Oct 14, 2026 · Ubuntu Security Notices

   Detected

   Dominique Dumont discovered that YAML-LibYAML did not correctly handle certain reflection operations. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to delete files. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2017-20285) It was discovered that YAML-LibYAML did not correctly handle parsing certain documents

Sources

• CVE.orgVulnerability recordCVE-2026-63676

  Official CVE identifier

  cve.org
• Ubuntu Security NoticesVendor advisoryCVE-2026-63676

  Dominique Dumont discovered that YAML-LibYAML did not correctly handle certain reflection operations. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to delete files. This issue only affected Ubuntu 16.04 LTS and U

  ubuntu.com