pyasn1: pyasn1: Denial of Service via crafted ASN.1 REAL values

A remote attacker can exploit this by providing specially crafted BER/CER/DER-encoded ASN.1 data with a large exponent in the REAL value. When the application subsequently prints, logs, compares, or performs arithmetic on the decoded value, this can cause excessive CPU and memory consumption,...

CVE-2026-73260

Built-in TLS X.509 DER parsing bounds check...

JLSEC-2026-1273

ModularSquareRoot in Crypto++ aka cryptopp through 8.9.0 allows attackers to cause a denial of service infinite loop via crafted DER public-key data associated with squared odd numbers, such as the square of 268995137513890432434389773128616504853...

JLSEC-2026-1272

gf2n.cpp in Crypto++ aka cryptopp through 8.9.0 allows attackers to cause a denial of service application crash via DER public-key data for an F2^m curve, if the degree of each term in the polynomial is not strictly decreasing...

CVE-2026-52058

mgdertotlv long-form DER length OOB read...

CVE-2026-52057

mgderfindoid unbounded recursion on constructed DER tags...

PT-2026-80515

ModularSquareRoot in Crypto++ aka cryptopp through 8.9.0 allows attackers to cause a denial of service infinite loop via crafted DER public-key data associated with squared odd numbers, such as the square of 268995137513890432434389773128616504853...

CVE-2026-52055

mgdertotlv long-form DER length OOB read...

PT-2026-80514

gf2n.cpp in Crypto++ aka cryptopp through 8.9.0 allows attackers to cause a denial of service application crash via DER public-key data for an F2^m curve, if the degree of each term in the polynomial is not strictly decreasing...

pyasn1: pyasn1: Denial of Service via crafted ASN.1 REAL values

A remote attacker can exploit this by providing specially crafted BER/CER/DER-encoded ASN.1 data with a large exponent in the REAL value. When the application subsequently prints, logs, compares, or performs arithmetic on the decoded value, this can cause excessive CPU and memory consumption,...

pyasn1: pyasn1: Denial of Service via crafted ASN.1 REAL values

A remote attacker can exploit this by providing specially crafted BER/CER/DER-encoded ASN.1 data with a large exponent in the REAL value. When the application subsequently prints, logs, compares, or performs arithmetic on the decoded value, this can cause excessive CPU and memory consumption,...

EulerOS 2.0 SP11 : python-ecdsa (EulerOS-SA-2026-3089)

According to the versions of the python-ecdsa packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : The ecdsa PyPI package is a pure Python implementation of ECC Elliptic Curve Cryptography with support for ECDSA Elliptic Curve Digital...

Important: python-pyasn1

Issue Overview: pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the BER decoder shared by the CER and DER codecs parses long-form tags by accumulating continuation octets without an upper bound on the tag ID size, allowing a crafted input to force construction of an arbitrarily larg...

Important: python-pyasn1

Issue Overview: pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the BER decoder shared by the CER and DER codecs parses long-form tags by accumulating continuation octets without an upper bound on the tag ID size, allowing a crafted input to force construction of an arbitrarily larg...

Uncontrolled Recursion

Overview org.bouncycastle:bcprov-jdk15 is a package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5. Affected versions of this package are vulnerable to Uncontrolled Recursion in the force...

Memory Allocation with Excessive Size Value

Overview Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value in the toByteArray method of DefiniteLengthInputStream, which allocates new byteintremaining up front from the declared ASN.1 definite-length value before reading any content. An attacker can...

Memory Allocation with Excessive Size Value

Overview org.bouncycastle:bcprov-jdk16 is a Bouncy Castle Crypto package that is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.6. Affected versions of this package are vulnerable to Memory...

Uncontrolled Recursion

Overview Affected versions of this package are vulnerable to Uncontrolled Recursion in the force method of LazyEncodedSequence, which parses the deferred SEQUENCE with a fresh ASN1InputStream whose nesting-depth counter is reset rather than inherited from the parent parse, and never calls...

Uncontrolled Recursion

Overview Affected versions of this package are vulnerable to Uncontrolled Recursion in the force method of LazyEncodedSequence, which parses the deferred SEQUENCE with a fresh ASN1InputStream whose nesting-depth counter is reset rather than inherited from the parent parse, and never calls...

Uncontrolled Recursion

Overview org.bouncycastle:bcprov-jdk12 is a Java implementation of cryptographic algorithms. Affected versions of this package are vulnerable to Uncontrolled Recursion in the force method of LazyEncodedSequence, which parses the deferred SEQUENCE with a fresh ASN1InputStream whose nesting-depth...