CVE-2026-58063

Summary

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).

Affected Software

VendorProductVersion RangeStatus
Legion of the Bouncy Castle Inc.BC-JAVA0 < 1.85affected
Legion of the Bouncy Castle Inc.BC-LTS-JAVA2.73.0 < 2.73.12affected
Legion of the Bouncy Castle Inc.BC-FJA1.0.0 < 1.0.2.7affected
Legion of the Bouncy Castle Inc.BC-FJA2.0.0 < 2.0.2affected
Legion of the Bouncy Castle Inc.BC-FJA2.1.0 < 2.1.3affected

Weaknesses

  • CWE-770: CWE-770 Allocation of Resources Without Limits or Throttling

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References