CVE-2026-13586CWE-770denial-of-service

CVE-2026-13586

High · published August 3, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
27.8
In the wild
Unconfirmed
What it is

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).

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00353 · 27.8th percentile
Weakness
CWE-770 · Allocation of Resources Without Limits or Throttling
Published
2026-08-03T08:16Z
Affected products (5)
ProductVersionsFixed in
bouncycastle/bc-java< 1.851.85
bouncycastle/bouncy_castle_for_java_lts≤ 2.73.11—
bouncycastle/fips_java_api≥ 1.0.0, < 1.0.2.71.0.2.7
bouncycastle/fips_java_api≥ 2.0.0, < 2.0.22.0.2
bouncycastle/fips_java_api≥ 2.1.0, < 2.1.32.1.3
References (3)
https://github.com/bcgit/bc-java/commit/75d60dfb4ca72bea6da96234138bc9b1556ef5b0 · 91579145-5d7b-4cc5-b925-a0262ff19630https://github.com/bcgit/bc-java/commit/fa59cc23502f73def89d94374540cc92af647b96 · 91579145-5d7b-4cc5-b925-a0262ff19630https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9013586 · 91579145-5d7b-4cc5-b925-a0262ff19630
EPSS history
Timeline
  • 03 AUG 02:58Z
    PKCS#12 MAC and bag-decryption KDF iteration-count bound (DoS)
    cvelistv5