CVE-2026-3505 PUBLISHED

Unbounded PGP AEAD chunk size leads to pre-auth resource exhaustion.

Assigner: bcorg
Reserved: 04.03.2026 Published: 15.04.2026 Updated: 15.04.2026

Allocation of resources without limits or throttling vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA bcpg on all (pg modules).This issue affects BC-JAVA: before 1.84.

Unbounded PGP AEAD chunk size leads to pre-auth resource exhaustion.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS Score: 8.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	Legion of the Bouncy Castle Inc.
Product	BC-JAVA
Versions	Default: unaffected affected from 1.74 to 1.84 (excl.)

Credits

Disclosure <disclosure@aisle.com> finder

References

Problem Types

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