PT-2026-47000 · Julia · Gnutls Jll

Published 2026-05-26 · Updated 2026-05-26

OSV

GnuTLS 3.6.x before 3.6.14 uses incorrect cryptography for encrypting a session ticket (a loss of confidentiality in TLS 1.2, and an authentication bypass in TLS 1.3). The earliest affected version is 3.6.4 (2018-09-24) because of an error in a 2018-09-18 commit. Until the first key rotation, the TLS server always uses wrong data in place of an encryption key derived from an application.

Related Identifiers

JLSEC-2026-518

Affected Products

Gnutls Jll

References · 11

• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VMB3UGI5H5RCFRU6OGRPMNUCNLJGEN7Y · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6C4DHUKV6M6SJ5CV6KVHZNHNF7HCUE5P · Vendor Advisory
• https://osv.dev/vulnerability/JLSEC-2026-518 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6RTXZOXC4MHTFE2HKY6IAZMF2WHD2WMV · Vendor Advisory
• https://debian.org/security/2020/dsa-4697 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RRQBFK3UZ7SV76IYDTS4PS6ABS2DSJHK · Vendor Advisory
• https://gnutls.org/security-new.html#GNUTLS-SA-2020-06-03 · Note
• https://security.gentoo.org/glsa/202006-01 · Note
• https://security.netapp.com/advisory/ntap-20200619-0004 · Note
• https://usn.ubuntu.com/4384-1 · Note
• http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00015.html · Note