CVE-2026-76234 libcrux before 0.0.6 Cryptographic Implementation Bug Fixes

libcrux-ecdh and libcrux-ed25519 before 0.0.6, and libcrux-psq before 0.0.7, contain cryptographic implementation bugs. libcrux-ecdh did not properly check length and clamping during X25519 secret validation and had a broken clamping check for imported X25519 secret keys; libcrux-ed25519 performe...

CVE-2026-76234

libcrux-ecdh (before 0.0.6) had broken X25519 length/clamping validation; libcrux-ed25519 (before 0.0.6) duplicated clamping during key generation; libcrux-psq (before 0.0.7) panicked instead of propagating AEADError. CVSS 3.1 scores availability impact HIGH (7.5) and CVSS 4.0 scores 8.7. No expl...

CVE-2026-49423

When building the iovec array for a received TLS 1.2 CBC record, ktlsocftlscbcdecrypt incremented the iovec index for every mbuf in the chain, including mbufs that were skipped because they contained only TLS header bytes. This left uninitialized entries in the iovec array. The iovec array was...

EUVD-2026-62344

When building the iovec array for a received TLS 1.2 CBC record, ktlsocftlscbcdecrypt incremented the iovec index for every mbuf in the chain, including mbufs that were skipped because they contained only TLS header bytes. This left uninitialized entries in the iovec array. The iovec array was...

CVE-2026-49423

The FreeBSD kernel's KTLS subsystem is vulnerable to a remote denial of service due to an uninitialized memory access in the ktls_ocf_tls_cbc_decrypt() function. When processing a received TLS 1.2 CBC record , the function incorrectly increments the iovec index for all mbufs in the chain, includi...

CVE-2026-49419

When the JAILATDESC flag is specified, kernjailset and kernjailget released the reference to the caller's current prison before looking up the jail descriptor. If the descriptor lookup failed, error-handling paths released the same reference a second time. An unprivileged local user can trigger a...

CVE-2026-49419 Jail reference count underflow

When the JAILATDESC flag is specified, kernjailset and kernjailget released the reference to the caller's current prison before looking up the jail descriptor. If the descriptor lookup failed, error-handling paths released the same reference a second time. An unprivileged local user can trigger a...

PT-2026-83513

Summary A caught panic may leave the cursor position of EagerBuffer or ReadBuffer in a corrupted state; this in turn allows out-of-bounds reads/writes. Details & PoC The following two tests fail miri: rust cfgmiri test fn eager digest blocks panic corrupts inline position // EagerBuffer stores it...

CVE-2026-49423: Use of Uninitialized Resource

When building the iovec array for a received TLS 1.2 CBC record, ktlsocftlscbcdecrypt incremented the iovec index for every mbuf in the chain, including mbufs that were skipped because they contained only TLS header bytes. This left uninitialized entries in the iovec array. The iovec array was...

CVE-2026-72334

A flaw was found in the Linux kernel's Bluetooth ISO Isochronous Stream handling. A remote attacker, by sending specially crafted malformed Bluetooth ISO packets, could trigger a kernel panic, leading to a denial of service. Additionally, this vulnerability could result in a memory leak within th...

CVE-2026-52739

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, a malicious block producer can terminate zebrad by placing the same shielded transaction in a non-finalized parent block and its child. In zebra-state/src/service/nonfinalizedstate/chain.rs, Chain::push originally inserted the...

CVE-2026-52829

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, an unauthenticated IPv4 peer can deterministically terminate a synced Zebra node using the default Linux dual-stack listener configuration. The handshake path canonicalized an IPv4-mapped IPv6 PeerSocketAddr such as ::ffff:127.0.0.1 ...

CVE-2026-52738

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, a consensus-valid block containing a long chain of transparent self-spends to one address can permanently halt Zebra nodes. In zebra-state/src/service/finalizedstate/zebradb/transparent.rs, the finalized-state writer originally appli...

CVE-2026-52731

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, an attacker authenticated to an enabled Zebra RPC endpoint can terminate zebrad by supplying a getblocktemplate LongPollId containing multi-byte UTF-8 characters. In zebra-rpc/src/methods/types/longpoll.rs, LongPollId::fromstr...

CVE-2026-52829

An unauthenticated remote peer can deterministically crash any synced zebrad node (v4.4.1 and earlier) on the default Linux dual-stack listener by completing a P2P handshake and advertising an invalid mempool transaction; the crash fires after the 30-second misbehavior batch flush due to an IPv4-...

CVE-2026-52829 ZEBRA: IPv4-Mapped Mempool Misbehavior Update Aborts Zebra Address Book

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, an unauthenticated IPv4 peer can deterministically terminate a synced Zebra node using the default Linux dual-stack listener configuration. The handshake path canonicalized an IPv4-mapped IPv6 PeerSocketAddr such as ::ffff:127.0.0.1 ...

CVE-2026-52731 ZEBRA: Full node denial of service via non-ASCII LongPollId in getblocktemplate

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, an attacker authenticated to an enabled Zebra RPC endpoint can terminate zebrad by supplying a getblocktemplate LongPollId containing multi-byte UTF-8 characters. In zebra-rpc/src/methods/types/longpoll.rs, LongPollId::fromstr...

EUVD-2026-61169

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, an attacker authenticated to an enabled Zebra RPC endpoint can terminate zebrad by supplying a getblocktemplate LongPollId containing multi-byte UTF-8 characters. In zebra-rpc/src/methods/types/longpoll.rs, LongPollId::fromstr...

CVE-2026-52731 ZEBRA: Full node denial of service via non-ASCII LongPollId in getblocktemplate

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, an attacker authenticated to an enabled Zebra RPC endpoint can terminate zebrad by supplying a getblocktemplate LongPollId containing multi-byte UTF-8 characters. In zebra-rpc/src/methods/types/longpoll.rs, LongPollId::fromstr...

CVE-2026-52731

ZEBRA (Zcash full node, Rust) versions prior to 4.5.0 are vulnerable to a denial of service via the getblocktemplate RPC endpoint. The LongPollId::from_str function in zebra-rpc/src/methods/types/long_poll.rs performs byte-index string slicing on user-supplied input. When the LongPollId contains ...