CVE-2026-59650

Public on 2026-08-03
Modified on 2026-08-05
Description
In Bouncy Castle for Java before 1.85, MTI/A0 DH agreement exponentiates unvalidated peer value. This issue also affects Bouncy Castle for Java LTS before 2.73.12.
Severity
Important severity
Important
See what this means
CVSS v3 Base Score
7.4
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2023 bouncycastle 2026-09-14 ALAS2023-2026-2153 Fixed

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD CVSSv3 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2026-59650 Mitre: CVE-2026-59650