PT-2026-67032 · Legion Of The Bouncy Castle · Bc-Fja+2

CVE-2026-13586 · Published 2026-08-03 · Updated 2026-08-03

Mitre

CVSS v4.0

5.3

Medium

Base vector

AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/U:Amber

In Bouncy Castle for Java before 1.85, PKCS#12 MAC and bag-decryption KDF iteration-count bound (DoS). 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).

Exploit

Fix

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2026-13586

Affected Products

Bc-Fja

Bc-Java

Bc-Lts-Java

References · 4

• 🔥 https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9013586 · Exploit
• https://github.com/bcgit/bc-java/commit/75d60dfb4ca72bea6da96234138bc9b1556ef5b0 · Patch
• https://github.com/bcgit/bc-java/commit/fa59cc23502f73def89d94374540cc92af647b96 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-13586 · Security Note