{"id":"CVE-2026-88648","published":"2026-10-08T19:20:52.703","lastModified":"2026-10-08T21:33:42.423","description":"Incomplete X.509 implementation in GnuTLS v3.8.13 allows attackers controlling a subordinate Certificate Authority to bypass cross-domain PKI restrictions and issue unauthorized certificates.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://gist.github.com/lkloliver/1f2a97cb8d0b31aa27b6bd0354358d7d","tags":[]},{"url":"https://www.rfc-editor.org/rfc/rfc5280#section-4.2.1.10","tags":[]},{"url":"https://www.rfc-editor.org/rfc/rfc5280#section-6.1.4","tags":[]}],"exploitRefs":[{"url":"https://gist.github.com/lkloliver/1f2a97cb8d0b31aa27b6bd0354358d7d","tags":[]}],"hasPoc":true,"ai":null}