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{"bugzilla": {"description": "bouncycastle: BC-JAVA: unbounded PGP AEAD chunk size leads to pre-auth resource exhaustion", "id": "2458638", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2458638"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-770", "details": ["Allocation of resources without limits or throttling, Uncontrolled Resource Consumption vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA bcpg on all (pg modules). This vulnerability is associated with program files AEADEncDataPacket.Java, BcAEADUtil.Java, JceAEADUtil.Java, OperatorHelper.Java.\nThis issue affects BC-JAVA: from 1.74 before 1.84.", "A flaw was found in Legion of the Bouncy Castle Inc. BC-JAVA bcpg. A specially crafted PGP AEAD (Authenticated Encryption with Associated Data) message with an unbounded chunk size can lead to an excessive consumption of memory. This issue allows an unauthenticated remote attacker to cause memory exhaustion in a JVM, resulting in a denial of service."], "mitigation": {"lang": "en:us", "value": "To mitigate this vulnerability, enforce payload size limits on all incoming PGP messages before processing them. Additionally, apply memory quotas to the JVM or container environment to prevent a complete system outage in the event of memory exhaustion."}, "name": "CVE-2026-3505", "package_state": [{"cpe": "cpe:/a:redhat:ocp_tools", "fix_state": "Affected", "package_name": "jenkins", "product_name": "OpenShift Developer Tools and Services"}, {"cpe": "cpe:/a:redhat:ocp_tools", "fix_state": "Affected", "package_name": "jenkins-2-plugins", "product_name": "OpenShift Developer Tools and Services"}, {"cpe": "cpe:/a:redhat:ocp_tools", "fix_state": "Affected", "package_name": "ocp-tools-4/jenkins-rhel8", "product_name": "OpenShift Developer Tools and Services"}, {"cpe": "cpe:/a:redhat:ocp_tools", "fix_state": "Affected", "package_name": "ocp-tools-4/jenkins-rhel9", "product_name": "OpenShift Developer Tools and Services"}, {"cpe": "cpe:/a:redhat:amq_clients:2023", "fix_state": "Affected", "package_name": "bcpg-jdk18on", "product_name": "Red Hat AMQ Clients"}, {"cpe": "cpe:/a:redhat:camel_quarkus:3", "fix_state": "Affected", "package_name": "bcpg-jdk18on", "product_name": "Red Hat build of Apache Camel 4 for Quarkus 3"}, {"cpe": "cpe:/a:redhat:camel_spring_boot:4", "fix_state": "Affected", "package_name": "bcpg-jdk18on", "product_name": "Red Hat build of Apache Camel for Spring Boot 4"}, {"cpe": "cpe:/a:redhat:jboss_data_grid:8", "fix_state": "Affected", "package_name": "bcpg-jdk15on", "product_name": "Red Hat Data Grid 8"}, {"cpe": "cpe:/a:redhat:jboss_data_grid:8", "fix_state": "Affected", "package_name": "bcpg-jdk18on", "product_name": "Red Hat Data Grid 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "jmc", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:jboss_fuse:7", "fix_state": "Affected", "package_name": "bcpg-jdk15on", "product_name": "Red Hat Fuse 7"}, {"cpe": "cpe:/a:redhat:jboss_fuse:7", "fix_state": "Affected", "package_name": "bcpg-jdk18on", "product_name": "Red Hat Fuse 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:7", "fix_state": "Affected", "package_name": "bcpg-jdk15on", "product_name": "Red Hat JBoss Enterprise Application Platform 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:7", "fix_state": "Affected", "package_name": "bcpg-jdk18on", "product_name": "Red Hat JBoss Enterprise Application Platform 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8", "fix_state": "Affected", "package_name": "bcpg-fips", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8", "fix_state": "Affected", "package_name": "bcpg-jdk15on", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8", "fix_state": "Affected", "package_name": "bcpg-jdk18on", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Affected", "package_name": "bcpg-fips", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Affected", "package_name": "bcpg-jdk15on", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Affected", "package_name": "bcpg-jdk18on", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Affected", "package_name": "bcpg-jdk18on-1.83.0.redhat-00001.jar", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_bpms_platform:7", "fix_state": "Affected", "package_name": "bcpg-jdk15on", "product_name": "Red Hat Process Automation 7"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Affected", "package_name": "candlepin", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Affected", "package_name": "satellite:el8/candlepin", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:red_hat_single_sign_on:7", "fix_state": "Will not fix", "package_name": "bcpg-jdk15on", "product_name": "Red Hat Single Sign-On 7"}, {"cpe": "cpe:/a:redhat:amq_streams:2", "fix_state": "Affected", "package_name": "bcpg-jdk18on", "product_name": "streams for Apache Kafka 2"}, {"cpe": "cpe:/a:redhat:amq_streams:3", "fix_state": "Affected", "package_name": "bcpg-jdk18on", "product_name": "streams for Apache Kafka 3"}], "public_date": "2026-04-15T09:06:37Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-3505\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-3505\nhttps://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%903505"], "statement": "To exploit this issue, an attacker needs to submit a specially crafted PGP AEAD message containing an unbounded chunk size to an application. An attack typically requires the application to process this malformed data, resulting in the uncontrolled allocation of memory resources.\nThe primary impact of this vulnerability is a compromise of system availability, allowing an unauthenticated remote attacker to cause memory exhaustion in a JVM, resulting in a denial of service.", "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": ["all"], "status": "affected", "versions": {"scheme": "generic", "value": "[0,1.84)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "BC-JAVA", "source": "cna", "vendor": "Legion of the Bouncy Castle Inc."}, "product": "bc-java", "vendor": "bouncycastle"}], "analysis": {"en": {"generated_at": "2026-04-22T03:34:17.586838+00:00", "value": {"mitigation_remediation": ["Upgrade Bouncy Castle BC\u2011JAVA to version 1.84 or later to eliminate the unbounded chunk size processing", "If an immediate upgrade is not possible, restrict access to the application from trusted IPs or implement network\u2011level rate limiting to mitigate the large input attack", "Deploy application\u2011level resource limits (e.g., memory caps or ulimits) and monitor for anomalous memory usage patterns to prevent exhaustion from occurring"], "summary": {"action": "Apply patch", "impact": "Pre\u2011authentication Resource Exhaustion"}, "threat_synthesis": {"affected_systems": "The vulnerability affects all Bouncy Castle BC\u2011JAVA bcpg implementations before version 1.84. Any system that processes PGP data with an affected library version could be impacted.", "description_and_impact": "Bouncy Castle\u2019s BC\u2011JAVA library processes PGP AEAD packets with an unbounded chunk size, leading to uncontrolled memory allocation before any authentication verification. An attacker can supply a crafted PGP data file that forces the library to reserve large amounts of memory or other system resources, causing resource exhaustion, crashes, or denial of service. This uncontrolled resource consumption reflects CWE\u2011400 (Uncontrolled Resource Consumption) and the broader Resource Exhaustion weakness CWE\u2011770.", "risk_and_exploitability": "The CVSS score is 8.7, indicating high severity. The EPSS score of 0.00055 (<1%) suggests a low exploitation probability, although it is not zero. The vulnerability is not listed in the CISA KEV catalog. The likely attack vector is through crafted PGP data sent to an application that uses the vulnerable library; the attacker needs only to transmit a malicious file before authentication to trigger the exhaustion. Because memory allocation is unbounded, the impact can range from a local resource drain to a full denial of service against the affected system."}}}}, "created": "2026-04-15T13:49:14.858026+00:00", "updated": "2026-04-22T03:45:06.971225+00:00", "vendors": ["bouncycastle", "bouncycastle$PRODUCT$bc-java"]}