OpenSSL 4.1.0
2026-10-24T08:51:56Z•f5b995b1e89b7b75b5d3d72515064569702aec1d223f1c2c5a0c13017b3bb7fe
CVE-2026-35189CVE-2026-35191CVE-2026-42772CVE-2026-54872CVE-2026-54873CVE-2026-54875CVE-2026-72897CVE-2026-75804CVE-2026-75805CVE-2026-84782CVE-2026-84783CMPCRLDPDTLSDTLS 1.3ML-DSAML-KEMOpenSSLQUICSM2X.509denial of serviceelliptic curve cryptographyfeature releaseout-of-bounds accesspost-quantum cryptographysecurity releasetiming side channeluse-after-free
What happened
OpenSSL release feed covering OpenSSL 4.1.0 feature and prerelease builds, plus security patch releases for the 4.0, 3.6, 3.5, and 3.4 branches. The security updates address high-severity issues involving DTLS handshake retransmissions, X.509 cache concurrency, certificate revocation processing, QUIC resource-exhaustion and flow-control flaws, elliptic-curve timing side channels, SM2 constant-time behavior, handshake out-of-bounds access, and CMP handling. OpenSSL 4.1.0 adds DTLS 1.3, GREASE, DTLS listener support, IKEv2 KDF, post-quantum cryptographic optimizations, and other platform/build,3
Why it matters
A reviewed impact interpretation has not been published for this record.
Evidence and limitations
- Source ID
- openssl_releases
- Record identifier
- f5b995b1e89b7b75b5d3d72515064569702aec1d223f1c2c5a0c13017b3bb7fe
- Enrichment time
- 2026-10-24T08:51:56Z
- AI-assisted enrichment
- Yes
This record may overlap with other records. Its enrichment can be incomplete or wrong, and machine assistance was used. Validate consequential decisions against the linked source and your own environment.