CVE-2026-8763
Fixed in a distro release EPSS <1%CVSS 9.3
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).
Products: Legion of the Bouncy Castle Inc. BC-JAVA, Legion of the Bouncy Castle Inc. BC-LTS-JAVA, Legion of the Bouncy Castle Inc. BC-FJA
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Maven | org.bouncycastle:bc-fips | 1.0.2.7 |
| Maven | org.bouncycastle:bc-fips | 2.0.2 |
| Maven | org.bouncycastle:bc-fips | 2.1.3 |
| Maven | org.bouncycastle:bcprov-jdk15to18 | 1.85 |
| Maven | org.bouncycastle:bcprov-jdk18on | 1.85 |
| Maven | org.bouncycastle:bcprov-lts8on | 2.73.12 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux 2023 | bouncycastle | 1.70-4.amzn2023.0.8 |
| Amazon Linux 2023 | bouncycastle-javadoc | 1.70-4.amzn2023.0.8 |
| Amazon Linux 2023 | bouncycastle-mail | 1.70-4.amzn2023.0.8 |
| Amazon Linux 2023 | bouncycastle-pg | 1.70-4.amzn2023.0.8 |
| Amazon Linux 2023 | bouncycastle-pkix | 1.70-4.amzn2023.0.8 |
| Amazon Linux 2023 | bouncycastle-tls | 1.70-4.amzn2023.0.8 |
| Amazon Linux 2023 | bouncycastle-util | 1.70-4.amzn2023.0.8 |
| Chainguard | airbyte-platform-workload-launcher | 2.0.0-r8 |
| Chainguard | apache-nifi-2.11 | no fix |
| Chainguard | apache-nifi-2.12 | 2.12.0-r1 |
| Chainguard | apache-nifi-registry-2.11 | 2.11.0-r4 |
| Chainguard | apache-nifi-registry-2.12 | 2.12.0-r1 |
| Chainguard | apache-pulsar-4.0 | 4.0.13-r4 |
| Chainguard | apache-pulsar-4.2 | 4.2.4-r5 |
| Chainguard | apache-pulsar-fips-4.0 | 4.0.13-r4 |
| Chainguard | apache-pulsar-fips-4.2 | 4.2.4-r5 |
| Chainguard | bouncycastle-fips | 2.1.3-r0 |
| Chainguard | camunda-8.8 | 8.8.39-r1 |
| Chainguard | camunda-zeebe-8.6 | 8.6.39-r13 |
| Chainguard | camunda-zeebe-8.7 | 8.7.41-r1 |
| Chainguard | camunda-zeebe-8.8 | 8.8.39-r1 |
| Chainguard | cassandra-fips-4.0 | 4.0.21-r2 |
| Chainguard | cassandra-fips-4.1 | 4.1.12-r2 |
| Chainguard | cassandra-fips-5.0 | 5.0.8-r15 |
| Chainguard | commercial-elasticsearch-8.17 | no fix |
| Chainguard | commercial-elasticsearch-9.2 | no fix |
| Chainguard | commercial-elasticsearch-9.3 | no fix |
| Chainguard | conductor | 3.32.4-r1 |
| Chainguard | druid | 37.0.0-r57 |
| Chainguard | eco-java-gradle-7.6.5 | no fix |
| Chainguard | eco-java-gradle-7.6.6 | no fix |
| Chainguard | eco-java-gradle-8.10 | no fix |
| Chainguard | eco-java-gradle-8.10.1 | no fix |
| Chainguard | eco-java-gradle-8.10.2 | no fix |
| Chainguard | eco-java-gradle-8.11 | no fix |
| Chainguard | eco-java-gradle-8.11.1 | no fix |
| Chainguard | eco-java-gradle-8.12 | no fix |
| Chainguard | eco-java-gradle-8.12.1 | no fix |
| Chainguard | eco-java-gradle-8.13 | no fix |
| Chainguard | eco-java-gradle-8.14 | no fix |
| Chainguard | eco-java-gradle-8.14.1 | no fix |
| Chainguard | eco-java-gradle-8.14.2 | no fix |
| Chainguard | eco-java-gradle-8.14.3 | no fix |
| Chainguard | eco-java-gradle-8.14.4 | no fix |
| Chainguard | eco-java-gradle-8.14.5 | no fix |
| Chainguard | eco-java-gradle-8.8 | no fix |
| Chainguard | eco-java-gradle-8.9 | no fix |
| Chainguard | eco-java-gradle-9.0.0 | no fix |
| Chainguard | eco-java-gradle-9.1.0 | no fix |
| Chainguard | eco-java-gradle-9.2.0 | no fix |
| Chainguard | eco-java-gradle-9.2.1 | no fix |
| Chainguard | eco-java-gradle-9.3.0 | no fix |
| Chainguard | eco-java-gradle-9.3.1 | no fix |
| Chainguard | eco-java-gradle-9.4.0 | no fix |
| Chainguard | eco-java-gradle-9.4.1 | no fix |
| Chainguard | eco-java-gradle-9.5.0 | no fix |
| Chainguard | eco-java-gradle-9.5.1 | no fix |
| Chainguard | eco-java-gradle-9.6.0 | no fix |
| Chainguard | eco-java-gradle-9.6.1 | no fix |
| Chainguard | eco-java-gradle-9.7.0 | no fix |
| Chainguard | elasticsearch-9.2 | 9.2.8-r15 |
| Chainguard | elasticsearch-9.2 | no fix |
| Chainguard | elasticsearch-9.3 | no fix |
| Chainguard | geoserver-2.27 | 2.27.6-r2 |
| Chainguard | geoserver-2.28 | 2.28.5-r2 |
| Chainguard | geoserver-3.0 | 3.0.1-r4 |
| Chainguard | ghidra | 12.1.4-r1 |
| Chainguard | guacamole-client-extensions | 1.6.0-r16 |
| Chainguard | guacamole-client-extensions | 1.6.0-r17 |
| Chainguard | hadoop-fips-3.4.2 | no fix |
| Chainguard | hadoop-fips-3.5 | 3.5.0-r16 |
| Chainguard | hono-adapter-mqtt | 2.7.0-r41 |
| Chainguard | jenkins-2.541 | no fix |
| Chainguard | jenkins-2.541-openjdk-17 | no fix |
| Chainguard | jenkins-2.541-openjdk-21 | no fix |
| Chainguard | jenkins-2.541-openjdk-25 | no fix |
| Chainguard | jenkins-2.555 | no fix |
| Chainguard | jenkins-2.555-openjdk-21 | no fix |
| Chainguard | jenkins-2.555-openjdk-25 | no fix |
| Chainguard | jenkins-2.568 | 2.568.3-r1 |
| Chainguard | jenkins-2.568-openjdk-21 | 2.568.3-r1 |
| Chainguard | jenkins-2.568-openjdk-25 | 2.568.3-r1 |
| Chainguard | kayenta-2025.2 | 2025.2.4-r11 |
| Chainguard | kayenta-2025.4 | 2025.4.6-r16 |
| Chainguard | kayenta-2026.0 | 2026.0.7-r5 |
| Chainguard | kayenta-2026.1 | 2026.1.2-r7 |
| Chainguard | kayenta-2026.2 | 2026.2.5-r3 |
| Chainguard | kayenta-fips-2025.2 | no fix |
| Chainguard | kayenta-fips-2025.2 | 2025.2.4-r11 |
| Chainguard | kayenta-fips-2025.4 | 2025.4.6-r9 |
| Chainguard | kayenta-fips-2026.0 | 2026.0.5-r5 |
| Chainguard | kayenta-fips-2026.1 | 2026.1.2-r7 |
| Chainguard | kayenta-fips-2026.2 | 2026.2.5-r3 |
| Chainguard | keycloak-26.5 | no fix |
| Chainguard | keycloak-26.5-iamguarded-compat | no fix |
| Chainguard | keycloak-26.6 | 26.6.7-r1 |
| Chainguard | keycloak-26.6-iamguarded-compat | 26.6.7-r1 |
| Chainguard | keycloak-26.7 | 26.7.4-r1 |
| Chainguard | keycloak-26.7-iamguarded-compat | 26.7.4-r1 |
| Chainguard | keycloak-fips-26.6 | 26.6.7-r1 |
| Chainguard | keycloak-fips-26.6-iamguarded-fips | 26.6.7-r1 |
| Chainguard | keycloak-fips-26.7 | 26.7.4-r1 |
| Chainguard | keycloak-fips-26.7-iamguarded-fips | 26.7.4-r1 |
| Chainguard | kserve-modelmesh | 0.12.0-r40 |
| Chainguard | logstash-8.19 | 8.19.21-r6 |
| Chainguard | logstash-8.19-iamguarded-compat | 8.19.21-r6 |
| Chainguard | logstash-8.19-with-output-opensearch | 8.19.21-r6 |
| Chainguard | logstash-9.2 | no fix |
| Chainguard | logstash-9.2-iamguarded-compat | no fix |
| Chainguard | logstash-9.2-with-output-opensearch | no fix |
| Chainguard | logstash-9.3 | no fix |
| Chainguard | logstash-9.3-iamguarded-compat | no fix |
| Chainguard | logstash-9.4 | no fix |
| Chainguard | logstash-9.4 | 9.4.8-r0 |
| Chainguard | logstash-9.4-iamguarded-compat | 9.4.8-r0 |
| Chainguard | logstash-9.4-iamguarded-compat | no fix |
| Chainguard | logstash-9.5 | 9.5.5-r0 |
| Chainguard | logstash-9.5-iamguarded-compat | 9.5.5-r0 |
| Chainguard | logstash-fips-9.4 | 9.4.7-r6 |
| Chainguard | logstash-fips-9.4-iamguarded-compat | 9.4.7-r6 |
| Chainguard | logstash-fips-9.5 | 9.5.4-r9 |
| Chainguard | logstash-fips-9.5-iamguarded-compat | 9.5.4-r8 |
| Chainguard | logstash-fips-9.5-iamguarded-compat | 9.5.4-r9 |
| Chainguard | nacos | 3.2.4-r2 |
| Chainguard | nacos-docker | 3.2.4-r2 |
| Chainguard | nuxeo-2023 | 2023.45-r16 |
| Chainguard | nuxeo-2025 | 2025.20-r1 |
| Chainguard | opensearch-2 | 2.19.6-r11 |
| Chainguard | opensearch-2-identity-shiro | 2.19.6-r12 |
| Chainguard | opensearch-2-ingest-attachment | 2.19.6-r12 |
| Chainguard | opensearch-2-ml-commons | 2.19.6-r11 |
| Chainguard | opensearch-2-performance-analyzer | 2.19.6-r12 |
| Chainguard | opensearch-2-security | 2.19.6-r12 |
| Chainguard | opensearch-2-sql | 2.19.6-r12 |
| Chainguard | pinot | no fix |
| Chainguard | pinot-fips | no fix |
| Chainguard | ranger | 2.9.0-r6 |
| Chainguard | request-9047-keycloak-fips-26.5 | 26.5.7-r28 |
| Chainguard | request-9047-keycloak-fips-26.5-iamguarded-fips | 26.5.7-r28 |
| Chainguard | request-9047-keycloak-fips-26.6 | 26.6.7-r1 |
| Chainguard | request-9047-keycloak-fips-26.6-iamguarded-fips | 26.6.7-r1 |
| Chainguard | request-9047-keycloak-fips-26.7-iamguarded-fips | 26.7.4-r1 |
| Chainguard | ruby3.2-bouncy-castle-java | 1.5.0146.1-r9 |
| Chainguard | ruby3.3-bouncy-castle-java | 1.5.0146.1-r7 |
| Chainguard | ruby3.4-bouncy-castle-java | 1.5.0146.1-r8 |
| Chainguard | ruby4.0-bouncy-castle-java | 1.5.0146.1-r5 |
| Chainguard | spark-4.0-scala-2.13 | 4.0.4-r5 |
| Chainguard | wazuh-indexer | 4.14.7-r6 |
| Chainguard | wazuh-indexer-plugin-ml-commons | 4.14.7-r6 |
| Chainguard | wazuh-indexer-plugin-performance-analyzer | 4.14.7-r6 |
| Chainguard | wazuh-indexer-plugin-security | 4.14.7-r6 |
| Chainguard | wazuh-indexer-plugin-sql | 4.14.7-r6 |
| Chainguard | wso2is | 7.3.0-r4 |
| Chainguard | zipkin | no fix |
| Chainguard | zipkin | 3.6.1-r28 |
| Chainguard | zipkin-slim | 3.6.1-r28 |
| Chainguard | zipkin-slim | no fix |
| Debian 12 | bouncycastle | no fix |
| Debian 13 | bouncycastle | no fix |
| Debian 14 | bouncycastle | 1.86-1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | bouncycastle | 1.85-150200.3.38.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | bouncycastle | 1.85-150200.3.38.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | bouncycastle | 1.85-150200.3.38.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | bouncycastle | 1.85-150200.3.38.1 |
| SUSE Linux Enterprise Module for Development Tools 15 SP7 | bouncycastle | 1.85-150200.3.38.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | bouncycastle | 1.85-150200.3.38.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | bouncycastle | 1.85-150200.3.38.1 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | bouncycastle | 1.85-150200.3.38.1 |
| SUSE Linux Enterprise Server 16.0 | bouncycastle | 1.85-160000.1.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | bouncycastle | 1.85-150200.3.38.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | bouncycastle | 1.85-150200.3.38.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | bouncycastle | 1.85-150200.3.38.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | bouncycastle | 1.85-160000.1.1 |
| Ubuntu 26.04 LTS | bouncycastle | no fix |
| Ubuntu 26.10 | bouncycastle | no fix |
| Ubuntu Pro 16.04 LTS | bouncycastle | no fix |
| Ubuntu Pro 18.04 LTS | bouncycastle | no fix |
| Ubuntu Pro 20.04 LTS | bouncycastle | no fix |
| Ubuntu Pro 22.04 LTS | bouncycastle | no fix |
| Ubuntu Pro 24.04 LTS | bouncycastle | no fix |
| Wolfi | apache-pulsar-4.2 | 4.2.4-r5 |
| Wolfi | druid | 37.0.0-r57 |
| Wolfi | keycloak-26.5 | no fix |
| Wolfi | keycloak-26.5-iamguarded-compat | no fix |
| Wolfi | keycloak-26.6 | 26.6.7-r1 |
| Wolfi | keycloak-26.6-iamguarded-compat | 26.6.7-r1 |
| Wolfi | kserve-modelmesh | 0.12.0-r40 |
| Wolfi | logstash-9.3 | no fix |
| Wolfi | logstash-9.3-iamguarded-compat | no fix |
| Wolfi | logstash-9.4 | no fix |
| Wolfi | logstash-9.4 | 9.4.8-r0 |
| Wolfi | logstash-9.4-iamguarded-compat | 9.4.8-r0 |
| Wolfi | logstash-9.4-iamguarded-compat | no fix |
| Wolfi | opensearch-2 | 2.19.6-r11 |
| Wolfi | ruby3.2-bouncy-castle-java | 1.5.0146.1-r9 |
| Wolfi | ruby3.3-bouncy-castle-java | 1.5.0146.1-r7 |
| Wolfi | ruby3.4-bouncy-castle-java | 1.5.0146.1-r8 |
| Wolfi | ruby4.0-bouncy-castle-java | 1.5.0146.1-r5 |
| Wolfi | spark-4.0-scala-2.13 | 4.0.4-r5 |
| Wolfi | zipkin | 3.6.1-r28 |
| Wolfi | zipkin | no fix |
| Wolfi | zipkin-slim | no fix |
| Wolfi | zipkin-slim | 3.6.1-r28 |
| openSUSE Leap 16.0 | bouncycastle | 1.85-160000.1.1 |
| openSUSE Tumbleweed | bouncycastle | 1.85-1.1 |