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CVE-2026-8763

Опубликовано: 03 авг. 2026
Источник: redhat
CVSS3: 7.4

Описание

In Bouncy Castle for Java before 1.85, Name Constraints bypass via trailing dot in rfc822Name and URI. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series), 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series).

A flaw was found in Bouncy Castle for Java, a cryptographic library. An attacker can exploit this vulnerability by manipulating rfc822Name and URI fields within X.509 certificates using a trailing dot. This bypasses Name Constraints, potentially leading to spoofing or unauthorized access. Such an exploit impacts the integrity and confidentiality of communications.

Отчет

This is an Important flaw in Bouncy Castle for Java, a cryptographic library used across various Red Hat products. The vulnerability allows an attacker to bypass Name Constraints in X.509 certificates by manipulating rfc822Name and URI fields with a trailing dot. This bypass could lead to spoofing or unauthorized access, impacting the integrity and confidentiality of communications in affected Red Hat environments.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat AMQ Clientsbcprov-jdk15onAffected
Red Hat Ceph Storage 9cephAffected
Red Hat Enterprise Linux 8pki-core:10.6/resteasyNot affected
Red Hat Enterprise Linux 8pki-deps:10.6/resteasyNot affected
Red Hat Enterprise Linux 9resteasyNot affected
Red Hat JBoss Enterprise Application Platform 7bcpkix-jdk15onWill not fix
Red Hat JBoss Enterprise Application Platform 7bcprov-jdk15onWill not fix
Red Hat Single Sign-On 7bcpkix-jdk15onAffected
Red Hat Single Sign-On 7bcprov-jdk15onAffected

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Дополнительная информация

Статус:

Important
Дефект:
CWE-295
https://bugzilla.redhat.com/show_bug.cgi?id=2510198org.bouncycastle/bcprov-jdk15on: org.bouncycastle/bcpkix-jdk15on: Bouncy Castle for Java: Name Constraints bypass via trailing dot in rfc822Name and URI

7.4 High

CVSS3

Связанные уязвимости

ubuntu
23 дня назад

In Bouncy Castle for Java before 1.85, Name Constraints bypass via trailing dot in rfc822Name and URI. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series), 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series).

nvd
23 дня назад

In Bouncy Castle for Java before 1.85, Name Constraints bypass via trailing dot in rfc822Name and URI. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series), 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series).

debian
23 дня назад

In Bouncy Castle for Java before 1.85, Name Constraints bypass via tra ...

github
23 дня назад

In Bouncy Castle for Java before 1.85, Name Constraints bypass via trailing dot in rfc822Name and URI. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series), 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series).

suse-cvrf
20 дней назад

Security update for bouncycastle

7.4 High

CVSS3