CVE-2026-88648

Public on 2026-10-08
Modified on 2026-10-10
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.
Severity
Medium severity
Medium
See what this means
CVSS v3 Base Score
4.8
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core gnutls Not Affected
Amazon Linux 2023 gnutls Not Affected
Amazon Linux 2027 Preview gnutls Not Affected
Amazon Linux 2 - Core guile Not Affected
Amazon Linux 2023 guile22 Not Affected

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 4.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2026-88648 Mitre: CVE-2026-88648