CVE-2026-52738 ZEBRA: Finalized address balance credit-first overflow on consensus-valid blocks

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-2026-52738

Zebra (a Zcash node written in Rust) versions up to v4.4.1 are vulnerable to a persistent chain halt . The finalized-state writer in transparent.rs applies all credits before debits within a block, so a consensus-valid block with a long chain of transparent self-spends to one address can push the...

CVE-2026-52735 ZEBRA: Consensus divergence via P2SH sigop undercount in pure-Rust disabled-opcode parser

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, Zebra can accept a block that zcashd rejects because the P2SH signature-operation counter undercounts redeem scripts containing a disabled opcode followed by signature opcodes. In zebra-script/src/lib.rs, p2shinputsigopcount used the...

CVE-2026-52735 ZEBRA: Consensus divergence via P2SH sigop undercount in pure-Rust disabled-opcode parser

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, Zebra can accept a block that zcashd rejects because the P2SH signature-operation counter undercounts redeem scripts containing a disabled opcode followed by signature opcodes. In zebra-script/src/lib.rs, p2shinputsigopcount used the...

CVE-2026-52739 ZEBRA: Repeated Non-Finalized Shielded Transaction Aborts Zebra Before Duplicate-Nullifier Rejection

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-2026-52734 ZEBRA: Unbounded memory leak in mempool download pipeline via timeout path cancel_handles retention

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, an unauthenticated P2P peer can cause the mempool download pipeline to retain transactions after verification reaches the outer RATELIMITDELAY timeout. In zebrad/src/components/mempool/downloads.rs, Downloads::pollnext removed...

CVE-2026-52734

In Downloads::poll_next() (downloads.rs:215-228), the timeout error path (Err(elapsed)) skips cancel_handles.remove() because tokio::time::error::Elapsed carries no transaction ID, so each timed-out entry retains up to ~9 MB of transaction data. With no GC or cap, an unauthenticated peer causes m...

CVE-2026-52734 ZEBRA: Unbounded memory leak in mempool download pipeline via timeout path cancel_handles retention

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, an unauthenticated P2P peer can cause the mempool download pipeline to retain transactions after verification reaches the outer RATELIMITDELAY timeout. In zebrad/src/components/mempool/downloads.rs, Downloads::pollnext removed...

CVE-2026-52737

Zebra (v4.4.1 and earlier) is vulnerable to a DoS: a malicious unauthenticated P2P peer serves a block with an above-lookahead coinbase height, triggering a 67-second global sync restart that cancels honest peer downloads indefinitely. The root cause is that BlockDownloadVerifyError::AboveLookahe...

CVE-2026-52737 ZEBRA: Sync restart poisoning from single unauthenticated peer via above-lookahead block

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, a malicious unauthenticated P2P peer can answer Zebra's outbound getblocks or FindBlocks request with a small two-hash inventory and then serve a syntactically valid block whose coinbase height is far above the local chain tip. In...

CVE-2026-52737 ZEBRA: Sync restart poisoning from single unauthenticated peer via above-lookahead block

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, a malicious unauthenticated P2P peer can answer Zebra's outbound getblocks or FindBlocks request with a small two-hash inventory and then serve a syntactically valid block whose coinbase height is far above the local chain tip. In...

CVE-2026-71417 Lemur: Any user can revoke arbitrary certificates at the CA by uploading a duplicate record and revoking it

Lemur manages TLS certificate creation. Prior to 1.9.3, POST /api/1/certificates/upload allowed a non-read-only user to create a duplicate row using another certificate body, authorityid, serial, or externalid without requiring permission on the underlying authority. PUT /api/1/certificates//revo...

EUVD-2026-61161

Lemur manages TLS certificate creation. Prior to 1.9.3, POST /api/1/certificates/upload allowed a non-read-only user to create a duplicate row using another certificate body, authorityid, serial, or externalid without requiring permission on the underlying authority. PUT /api/1/certificates//revo...

EUVD-2026-61160

Malcolm's upload-processing pipeline scripts/safe-extract.py enforces entry-count, nesting-depth, and total-uncompressed-byte limits when extracting container archives zip/tar/rar/7z via libarchive, but those limits are not applied when the uploaded file is a single-stream compressed format .gz,...

CVE-2026-72270

A flaw was found in the Linux kernel's s3fb driver, which handles S3 graphics cards. This vulnerability involves a memory leak within the s3pciprobe function. When certain error conditions occur, memory allocated for display mode lists is not properly freed. This oversight could allow an attacker...

CVE-2026-53533

aiosmtplib's SMTP.mail(), SMTP.rcpt(), SMTP.vrfy(), and SMTP.expn() methods transmit caller-supplied addresses without filtering CR/LF bytes, allowing SMTP command injection (CWE-93/CWE-77) when attacker-influenced addresses are passed. This enables desynchronization, client hangs, or arbitrary m...

CVE-2026-50161

libre (a real-time communications library) contains an integer overflow in websock_decode() (src/websock/websock.c) when validating a masked WebSocket frame using 64-bit extended length encoding. The expression 4 + hdr->len wraps when hdr->len is close to UINT64_MAX, bypassing the mbuf_get_...

CVE-2026-72246

A flaw was found in the Linux kernel's netfilter flowtable component. This vulnerability arises from an error in how the system sets up tunnel routes, specifically in handling network packet encapsulation and tunnel information. An attacker could potentially exploit this to cause incorrect networ...

CVE-2026-72241

A flaw was found in the kernel. In the leds: uleds module, a buffer overread can occur because the name string provided by userspace is not guaranteed to be null-terminated. This can lead to a local attacker potentially reading sensitive information from adjacent memory or causing a denial of...

DEBIAN-CVE-2026-61634

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.0, the AMQP connection tuning path records the negotiated AMQP framemax value, but src/main/java/com/rabbitmq/client/impl/SocketFrameHandler.java and...