CVE-2026-77696 Timing Side-Channel in SM2 Signature Generation

Issue summary: SM2 signature generation uses non-constant-time arithmetic on secret values, forming a timing side-channel. Impact summary: An attacker able to measure SM2 signing times may learn information about the per-signature secret nonce, which over many signatures can, via a lattice / Hidd...

EUVD-2026-89004

Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. Impact summary: An attacker able to measure signing times may learn...

CVE-2026-54872

A timing side-channel vulnerability exists in OpenSSL 's generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations. The flaw occurs because the generic implementation uses non-constant-time BIGNUM operations to pad secret scalars for curves lacking a dedicated const...

CVE-2026-54872 Timing Side-Channel in Scalar Multiplication for Non-NIST EC Curves

Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. Impact summary: An attacker able to measure signing times may learn...

CVE-2026-54872 Timing Side-Channel in Scalar Multiplication for Non-NIST EC Curves

Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. Impact summary: An attacker able to measure signing times may learn...

CVE-2026-54872

Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. Impact summary: An attacker able to measure signing times may learn...

EUVD-2026-88509

A security vulnerability has been detected in Netcore POWER13 2.0.240730.162638. This issue affects the function routerd.passwdset of the file /ubus. Such manipulation leads to weak password recovery. The attack may be performed from remote. The exploit has been disclosed publicly and may be used...

Does the Readout Bypass Leak the Input? A Feature-Visibility Audit of Hybrid Quantum-Classical Models

Readout-side residual hybrids concatenate raw inputs with measured quantum features. Under single-example gradient sharing, a biased first linear layer admits standard analytic recovery of its input, so the bypass exposes raw coordinates without requiring inversion of the quantum circuit. We audi...

PT-2026-102650

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description Generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations leaks information about the secret nonce through timing discrepancies...

CVE-2026-77696: Observable Timing Discrepancy

Issue summary: SM2 signature generation uses non-constant-time arithmetic on secret values, forming a timing side-channel. Impact summary: An attacker able to measure SM2 signing times may learn information about the per-signature secret nonce, which over many signatures can, via a lattice / Hidd...

PT-2026-102981

Name of the Vulnerable Software and Affected Versions oauthlib affected versions not specified Description A timing side-channel exists in the PKCE implementation of the Authorization Code Grant flow. The functions code challenge method plain and code challenge method s256 in the file...

CVE-2026-77696: Observable Timing Discrepancy

Issue summary: SM2 signature generation uses non-constant-time arithmetic on secret values, forming a timing side-channel. Impact summary: An attacker able to measure SM2 signing times may learn information about the per-signature secret nonce, which over many signatures can, via a lattice / Hidd...

Linux Distros Unpatched Vulnerability : CVE-2026-77696

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Issue summary: SM2 signature generation uses non-constant-time arithmetic on secret values, forming a timing side-channel. Impact summary: An attacker able to...

Linux Distros Unpatched Vulnerability : CVE-2026-54872

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated...

CVE-2026-54872: Observable Timing Discrepancy

Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. Impact summary: An attacker able to measure signing times may learn...

CVE-2026-54872: Observable Timing Discrepancy

Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. Impact summary: An attacker able to measure signing times may learn...

Timing Side-Channel in Scalar Multiplication for Non-NIST EC Curves

Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. Impact summary: An attacker able to measure signing times may learn...

Timing Side-Channel in SM2 Signature Generation

Issue summary: SM2 signature generation uses non-constant-time arithmetic on secret values, forming a timing side-channel. Impact summary: An attacker able to measure SM2 signing times may learn information about the per-signature secret nonce, which over many signatures can, via a lattice / Hidd...

PT-2026-102657

Name of the Vulnerable Software and Affected Versions The product name cannot be determined. affected versions not specified Description SM2 signature generation uses non-constant-time arithmetic on secret values, creating a timing side-channel. The process computes the signature value using...

CVE-2026-101188

A security vulnerability has been detected in Netcore POWER13 2.0.240730.162638. This issue affects the function routerd.passwdset of the file /ubus. Such manipulation leads to weak password recovery. The attack may be performed from remote. The exploit has been disclosed publicly and may be used...