CVE-2026-48852

PuTTY 0.71 before 0.84 has an assertion failure in ECDSA signature verification...

DEBIAN-CVE-2026-48852

PuTTY 0.71 before 0.84 has an assertion failure in ECDSA signature verification...

UBUNTU-CVE-2026-48852

PuTTY 0.71 before 0.84 has an assertion failure in ECDSA signature verification...

CVE-2026-48852

PuTTY 0.71 before 0.84 has an assertion failure in ECDSA signature verification...

CVE-2026-48852

PuTTY 0.71 before 0.84 has an assertion failure in ECDSA signature verification...

CVE-2026-48852

PuTTY 0.71 before 0.84 is affected by an assertion failure in ECDSA signature verification (CVE-2026-48852). The public data specifies affected version range and impact but provides no remediation details in the documents. The CVSS v3.1 vector yields a LOW overall impact (availability loss) with ...

CVE-2026-39831

The Verify method for FIDO/U2F security key types [email protected], [email protected] did not check the User Presence flag. Signatures generated without physical touch were accepted, allowing unattended use of a hardware security key. To restore the previous behavior,...

putty -- multiple security vulnerabilities

Simon Tatham reports: These features are new in PuTTY 0.84: Security issue: fixed a remotely triggerable double-free in RSA key exchange. We don't know of any way it is exploitable to execute code. Minor security issue: fixed a remotely triggerable crash in NIST ECDSA signature verification. An...

cryptography: cryptography Subgroup Attack Due to Missing Subgroup Validation for SECT Curves

A validation flaw has been discovered in the python cryptography package. This missing validation allows an attacker to provide a public key point P from a small-order subgroup. This can lead to security issues in various situations, such as the most commonly used signature verification ECDSA and...

PT-2026-39308

Name of the Vulnerable Software and Affected Versions epa4all-client affected versions not specified Description A signature bypass exists in the isTrusted function of the SignedPublicKeysTrustValidatorImpl class. The ECDSA signature verification process discards the boolean return value of the...

Unity Linux 20.1060e / 20.1070e Security Update: openssh (UTSA-2026-016488)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016488 advisory. OpenSSH before 10.3 can use unintended ECDSA algorithms. Listing of any ECDSA algorithm in PubkeyAcceptedAlgorithms or HostbasedAcceptedAlgorithms is misinterpreted ...

OpenSSH: OpenSSH: Information disclosure due to unintended cryptographic algorithm usage

A flaw was found in OpenSSH. This vulnerability allows the system to use unintended Elliptic Curve Digital Signature Algorithm ECDSA algorithms. This occurs because the configuration for accepted public key algorithms is misinterpreted, leading to the use of weaker cryptographic methods than...

OpenSSH: OpenSSH: Information disclosure due to unintended cryptographic algorithm usage

A flaw was found in OpenSSH. This vulnerability allows the system to use unintended Elliptic Curve Digital Signature Algorithm ECDSA algorithms. This occurs because the configuration for accepted public key algorithms is misinterpreted, leading to the use of weaker cryptographic methods than...

JLSEC-2026-248 Issue summary: A timing side-channel which could potentially allow recovering the private key exists...

Issue summary: A timing side-channel which could potentially allow recovering the private key exists in the ECDSA signature computation. Impact summary: A timing side-channel in ECDSA signature computations could allow recovering the private key by an attacker. However, measuring the timing would...

JLSEC-2026-214 Normally in OpenSSL EC groups always have a co-factor present and this is used in side channel...

Normally in OpenSSL EC groups always have a co-factor present and this is used in side channel resistant code paths. However, in some cases, it is possible to construct a group using explicit parameters instead of using a named curve. In those cases it is possible that such a group does not have...

python-ecdsa DER Parser Security Test Suite

This Python script is a security test and validation suite for the python-ecdsa library, focused on detecting potential DER Distinguished Encoding Rules parsing anomalies that may relate to CVE-2026-33936...

SUSE SLED15 / SLES15 Security Update : python-ecdsa (SUSE-SU-2026:1608-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2026:1608-1 advisory. - CVE-2026-33936: issue in the low-level DER parsing functions can cause unexpected exceptions to be raised from the...

Security Bulletin: Platform Navigator in IBM Cloud Pak for Integration is vulnerable to vulnerability in Elliptic

Summary Platform Navigator in IBM Cloud Pak for Integration is vulnerable to vulnerability in Elliptic. CVE-2025-14505 The vulnerability have been addressed Vulnerability Details CVEID:CVE-2025-14505 DESCRIPTION: The ECDSA implementation of the Elliptic package generates incorrect signatures if a...

Security update for python-ecdsa

This update for python-ecdsa fixes the following issues: CVE-2026-33936: issue in the low-level DER parsing functions can cause unexpected exceptions to be raised from the public API functions bsc1261009. Patch Instructions: To install this SUSE update use the SUSE recommended installation method...

SUSE-SU-2026:1608-1 Security update for python-ecdsa

This update for python-ecdsa fixes the following issues: - CVE-2026-33936: issue in the low-level DER parsing functions can cause unexpected exceptions to be raised from the public API functions bsc1261009...