CVE-2026-58063CWE-770denial-of-service

CVE-2026-58063

Medium · published August 3, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
35.5
In the wild
Unconfirmed
What it is

In Bouncy Castle for Java before 1.85, BCFKS keystore load honours unbounded KDF cost from untrusted file. 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
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00423 · 35.5th percentile
Weakness
CWE-770 · Allocation of Resources Without Limits or Throttling
Published
2026-08-03T07:16Z
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 (2)
https://github.com/bcgit/bc-java/commit/81737a56ef4489da1f849cf549df95e338ea6b06 · 91579145-5d7b-4cc5-b925-a0262ff19630https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9058063 · 91579145-5d7b-4cc5-b925-a0262ff19630
EPSS history
Timeline
  • 03 AUG 02:29Z
    BCFKS keystore load honours unbounded KDF cost from untrusted file
    cvelistv5