7.1
High
CVE-2026-63572 Allocation of resources without limits in PKCS#12 keystore loading (Pkcs12Store.Load) in Legion of the Bouncy Castle Inc
Description
Allocation of resources without limits in PKCS#12 keystore loading (Pkcs12Store.Load) in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows an attacker who can supply a PKCS#12 (PFX) file to cause a denial of service through CPU exhaustion via an iteration count close to 2^31 in the file's MacData or in the PBE parameters of an encrypted SafeContents or shrouded key bag, because the counts are taken from the file without an upper bound and the key derivation runs before the MAC or the password can be checked. A zero or negative count is covered by CVE-2026-63575. Pkcs12Utilities.ConvertToDefiniteLength is also affected.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| bc-csharp 2.7 | earliest → < 2.7.0 | 2.7.0 |
Other CVEs of bc-csharp
The 21 CVEs of bc-csharp →
CVE-2026-103604
Inefficient algorithmic complexity in X.509 distinguished name string conversion (X509Name.ToString and…
8.7
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CVE-2026-103603
Memory allocation with excessive size value in the HSS/LMS signature code (HssPublicKeyParameters, HssSignature) in…
8.7
High
CVE-2026-103602
Improper certificate validation in PkixNameConstraintValidator in Legion of the Bouncy Castle Inc
8.2
High
CVE-2026-103601
Release of unverified plaintext in the CCM (CcmBlockCipher) and DSTU 7624 CCM (KCcmBlockCipher) AEAD modes in Legion…
8.2
High