DEBIAN-CVE-2026-71891

In Bouncy Castle for Java before 1.86, BLS12381BasicScheme.keyValidate, and so BLSPublicKeyParameters and every BasicScheme, MessageAugmentation and ProofOfPossession verify and aggregateVerify that gate on it, accepted a public key built on a foreign ECCurve that merely shares BLS12-381's field...

UBUNTU-CVE-2026-71891

In Bouncy Castle for Java before 1.86, BLS12381BasicScheme.keyValidate, and so BLSPublicKeyParameters and every BasicScheme, MessageAugmentation and ProofOfPossession verify and aggregateVerify that gate on it, accepted a public key built on a foreign ECCurve that merely shares BLS12-381's field...

CVE-2026-71891 BLS12-381 key validation accepts a public key built on a foreign curve

In Bouncy Castle for Java before 1.86, BLS12381BasicScheme.keyValidate, and so BLSPublicKeyParameters and every BasicScheme, MessageAugmentation and ProofOfPossession verify and aggregateVerify that gate on it, accepted a public key built on a foreign ECCurve that merely shares BLS12-381's field...

CVE-2026-71891 BLS12-381 key validation accepts a public key built on a foreign curve

In Bouncy Castle for Java before 1.86, BLS12381BasicScheme.keyValidate, and so BLSPublicKeyParameters and every BasicScheme, MessageAugmentation and ProofOfPossession verify and aggregateVerify that gate on it, accepted a public key built on a foreign ECCurve that merely shares BLS12-381's field...

PT-2026-104570

Name of the Vulnerable Software and Affected Versions Bouncy Castle for Java versions prior to 1.86 Description An issue exists in the BLS12 381BasicScheme.keyValidate function, affecting BLSPublicKeyParameters and the verify and aggregateVerify methods of BasicScheme, MessageAugmentation, and...

Linux Distros Unpatched Vulnerability : CVE-2026-71891

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In Bouncy Castle for Java before 1.86, BLS12381BasicScheme.keyValidate, and so BLSPublicKeyParameters and every BasicScheme, MessageAugmentation and...

ROS-20260907-73-0099

The vulnerabilities of the ECCurve.java and ECCurve.cs files from the Math key verification library of the EC module in the Bouncy Castle Crypto Package for Java BC Java, Bouncy Castle Java Long Term Stable LTS BC-LJA, Bouncy Castle FIPS Java API BC-FJA, and Bouncy Castle Cryptography Library for...

EUVD-2024-1533

Malicious code in bioql PyPI...

org.bouncycastle: Importing an EC certificate with crafted F2m parameters may lead to Denial of Service

A vulnerability was found in Bouncy Castle. An issue was discovered in ECCurve.java and ECCurve.cs in Bouncy Castle Java BC Java. Importing an EC certificate with crafted F2m parameters can lead to excessive CPU consumption during the evaluation of the curve parameters...

The vulnerabilities in the files ECCurve.java and ECCurve.cs of the EC module verification library in the Math library of Bouncy Castle Crypto Package For Java (BC Java), Bouncy Castle Java Long Term Stable (LTS) (BC-LJA), Bouncy Castle FIPS Java API (BC-FJA), and Bouncy Castle Cryptography Library For .NET allow attackers to induce a service failure.

The vulnerabilities of the ECCurve.java and ECCurve.cs files from the Math key verification library of the EC module in the Bouncy Castle Crypto Package for Java BC Java, Bouncy Castle Java Long Term Stable LTS BC-LJA, Bouncy Castle FIPS Java API BC-FJA, and Bouncy Castle Cryptography Library for...

org.bouncycastle: Importing an EC certificate with crafted F2m parameters may lead to Denial of Service

A vulnerability was found in Bouncy Castle. An issue was discovered in ECCurve.java and ECCurve.cs in Bouncy Castle Java BC Java. Importing an EC certificate with crafted F2m parameters can lead to excessive CPU consumption during the evaluation of the curve parameters...

Allocation of Resources Without Limits or Throttling

Overview BouncyCastle is a C implementation of cryptographic algorithms. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the solveQuadraticEquation function used for certificate verification in ECCurve.java. Passing a large f2m parameter...