CVE-2026-3505

Summary

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.

This issue affects BC-JAVA: from 1.74 before 1.80.2, from 1.81 before 1.81.1, from 1.82 before 1.84.

Affected Software

Weaknesses

• CWE-770: CWE-770 Allocation of resources without limits or throttling
• CWE-400: CWE-400 Uncontrolled Resource Consumption

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

bouncycastle: BC-JAVA: unbounded PGP AEAD chunk size leads to pre-auth resource exhaustion

Additional References

• https://access.redhat.com/security/cve/CVE-2026-3505
• https://bugzilla.redhat.com/show_bug.cgi?id=2458638
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3505.json
• https://access.redhat.com/errata/RHSA-2026:18054
• https://access.redhat.com/errata/RHSA-2026:18055
• https://access.redhat.com/errata/RHSA-2026:13631
• https://access.redhat.com/errata/RHSA-2026:18059
• https://access.redhat.com/errata/RHSA-2026:17668

References

• https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%903505
• https://github.com/bcgit/bc-java/commit/dc7530939ffb6cdb57636f3609d98e23b94e71c1

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