https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Wed, 30 Sep 2026 13:37:26 +0000 https://vulnerability.circl.lu/vuln/cve-2026-77696 <p><strong>Affected:</strong> OpenSSL</p> <p>Issue summary: SM2 signature generation uses non-constant-time arithmetic on secret values, forming a timing side-channel.</p> <p>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 / Hidden Number Problem attack, lead to recovery of the private key.</p> <p>CWE: CWE-208: Observable Timing Discrepancy</p> <p>Description: SM2 signature generation computes the signature value using variable-time BIGNUM operations on the secret nonce and the private key, so the time taken to produce an SM2 signature depends on these secret values, forming a timing side-channel.</p> <p>Applications performing SM2 signature generation are affected on all platforms.</p> <p>FIPS Impact: no SM2 is not a FIPS algorithm.</p> <p><strong>Affected:</strong> OpenSSL</p> <p>Issue summary: SM2 signature generation uses non-constant-time arithmetic on secret values, forming a timing side-channel.</p> <p>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 / Hidden Number Problem attack, lead to recovery of the private key.</p> <p>CWE: CWE-208: Observable Timing Discrepancy</p> <p>Description: SM2 signature generation computes the signature value using variable-time BIGNUM operations on the secret nonce and the private key, so the time taken to produce an SM2 signature depends on these secret values, forming a timing side-channel.</p> <p>Applications performing SM2 signature generation are affected on all platforms.</p> <p>FIPS Impact: no SM2 is not a FIPS algorithm.</p> https://vulnerability.circl.lu/vuln/cve-2026-77696