PT-2026-33030 · Bouncy Castle · Bc-Java

Disclosure · Published 2026-04-15 · Updated 2026-05-19 · CVE-2026-3505

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions BC-JAVA versions prior to 1.84

Description An issue in the bcpg modules allows for unbounded PGP AEAD chunk size, which can lead to pre-authentication resource exhaustion. Resource exhaustion occurs when a system lacks limits or throttling on resource allocation, allowing a requester to consume all available system memory or CPU.

Recommendations Update to version 1.84 or later.

Exploit

Fix

Allocation of Resources Without Limits

Resource Exhaustion

Weakness Enumeration

CWE-770

CWE-400

Related Identifiers

CLEANSTART-2026-AV84730

CLEANSTART-2026-DY69070

CLEANSTART-2026-KP10590

CLEANSTART-2026-SR31778

CLEANSTART-2026-TK07726

CLEANSTART-2026-VN28553

CVE-2026-3505

GHSA-CJ8J-37RH-8475

OPENSUSE-SU-2026:10571-1

Affected Products

Bc-Java

References · 65

• 🔥 https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%903505 · Exploit
• https://github.com/bcgit/bc-java/commit/dc7530939ffb6cdb57636f3609d98e23b94e71c1 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2024-22257 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-47561 · Security Note
• https://ubuntu.com/security/CVE-2026-3505 · Vendor Advisory
• https://osv.dev/vulnerability/CLEANSTART-2026-VN28553 · Vendor Advisory
• https://osv.dev/vulnerability/CLEANSTART-2026-SR31778 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-cj8j-37rh-8475 · Vendor Advisory
• https://osv.dev/vulnerability/CLEANSTART-2026-TK07726 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-3505 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-3505 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-3505 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-33871 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-38821 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-7962 · Security Note