RUSTSEC-2026-0343 Outgoing datagram buffer accounting can panic the sender in quinn-proto

The limit on memory used to buffer outgoing datagrams, introduced in 0.11.17, subtracted an evicted datagram's size from the buffered byte counter twice when Datagrams::send was called with drop = true as Connection::senddatagram in the quinn crate does while the buffer was full. Under sustained...

RUSTSEC-2026-0340 Peer minimum ACK delay can panic quinn-proto when ACK_FREQUENCY transmission is enabled

When sending ACKFREQUENCY frames is enabled through TransportConfig::ackfrequencyconfigSome.., the peer's transport parameters could cause AckFrequencyState::candidatemaxackdelay to call Duration::clamp with a minimum greater than its maximum, which panics. For example, a peer advertising a...

RUSTSEC-2026-0338 Remote peer can panic quinn-proto with zero-length STREAM frames during unordered reads

When a stream is read in unordered mode for example through RecvStream::readfalse in quinn-proto or readunordered in quinn, quinn-proto proactively deduplicates received data by recording received ranges in a RangeSet through its replace method. When an incoming STREAM frame carried an empty...

RUSTSEC-2026-0342 Zero-length DATAGRAM frames bypass the receive buffer limit in quinn-proto

quinn-proto bounds its queue of received datagrams by charging each queued frame's payload length against TransportConfig::datagramreceivebuffersize, evicting the oldest datagrams when the limit is exceeded. A DATAGRAM frame with an empty payload was charged zero bytes, so it never triggered...

RUSTSEC-2026-0339 Unbounded growth of pending connection ID retirements in quinn-proto

When processing a NEWCONNECTIONID frame, quinn-proto queues a RETIRECONNECTIONID frame for each connection ID that the peer asked it to retire. The normal path bounds this queue and closes the connection with a CONNECTIONIDLIMITERROR if the bound would be exceeded. However, the path handling a...

RUSTSEC-2026-0341 Stream reassembly memory-exhaustion guard in quinn-proto can be bypassed

The fix for RUSTSEC-2026-0185 in 0.11.15 added a cap on the number of chunks buffered by the Assembler that reassembles out-of-order stream data. However, the cap was only checked inside the branch that triggers defragmentation, which only runs when the estimated over-allocation exceeds a thresho...

Remote memory exhaustion in quinn-proto from unbounded out-of-order stream reassembly

The Assembler component that assembles unordered stream fragments into consecutive chunks of the stream incurs some overhead for non-contiguous fragments. Readers that read from a RecvStream in order through an AsyncRead impl for example will be sensitive to peers that send fragments while leavin...

RUSTSEC-2026-0185 Remote memory exhaustion in quinn-proto from unbounded out-of-order stream reassembly

The Assembler component that assembles unordered stream fragments into consecutive chunks of the stream incurs some overhead for non-contiguous fragments. Readers that read from a RecvStream in order through an AsyncRead impl for example will be sensitive to peers that send fragments while leavin...

Fedora 43 : bpfman (2026-2fef29d32a)

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-2fef29d32a advisory. Fix CVE-2026-31812: Bump quinn-proto to 0.11.14 - Closes rhbz2446359 Tenable has extracted the preceding description block directly from the Fedora security...

Quinn affected by unauthenticated remote DoS via panic in QUIC transport parameter parsing

Summary A remote, unauthenticated attacker can trigger a denial of service in applications using vulnerable quinn versions by sending a crafted QUIC Initial packet containing malformed quictransportparameters. In quinn-proto parsing logic, attacker-controlled varints are decoded with unwrap, so...

Fedora 45 : bpfman (2026-0523662d59)

The remote Fedora 45 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-0523662d59 advisory. Automatic update for bpfman-0.5.4-6.fc45. Changelog Wed Mar 11 2026 Daniel Mellado - 0.5.4-6 - Fix CVE-2026-31812: Bump quinn-proto to 0.11.14 - Closes...

CVE-2023-42805

quinn-proto is a state machine for the QUIC transport protocol. Prior to versions 0.9.5 and 0.10.5, receiving unknown QUIC frames in a QUIC packet could result in a panic. The problem has been fixed in 0.9.5 and 0.10.5 maintenance releases...

Denial of service in quinn-proto when using `Endpoint::retry()`

Summary As of quinn-proto 0.11, it is possible for a server to accept, retry, refuse, or ignore an Incoming connection. However, calling retry on an unvalidated connection exposes the server to a likely panic in the following situations: - Calling refuse or ignore on the resulting validated...

GHSA-VR26-JCQ5-FJJ8 Denial of service in quinn-proto when using `Endpoint::retry()`

Summary As of quinn-proto 0.11, it is possible for a server to accept, retry, refuse, or ignore an Incoming connection. However, calling retry on an unvalidated connection exposes the server to a likely panic in the following situations: - Calling refuse or ignore on the resulting validated...

CVE-2024-45311 Denial of service in quinn-proto when using `Endpoint::retry()`

Quinn is a pure-Rust, async-compatible implementation of the IETF QUIC transport protocol. As of quinn-proto 0.11, it is possible for a server to accept, retry, refuse, or ignore an Incoming connection. However, calling retry on an unvalidated connection exposes the server to a likely panic in th...

CVE-2024-45311 Denial of service in quinn-proto when using `Endpoint::retry()`

Quinn is a pure-Rust, async-compatible implementation of the IETF QUIC transport protocol. As of quinn-proto 0.11, it is possible for a server to accept, retry, refuse, or ignore an Incoming connection. However, calling retry on an unvalidated connection exposes the server to a likely panic in th...

CVE-2024-45311: Always-Incorrect Control Flow Implementation

Quinn is a pure-Rust, async-compatible implementation of the IETF QUIC transport protocol. As of quinn-proto 0.11, it is possible for a server to accept, retry, refuse, or ignore an Incoming connection. However, calling retry on an unvalidated connection exposes the server to a likely panic in th...

PT-2024-31563 · Unknown · Quinn-Proto

Name of the Vulnerable Software and Affected Versions: quinn-proto version 0.11 Description: The issue arises when a server calls retry on an unvalidated connection, exposing it to a likely panic in two situations: 1. When refuse or ignore is called on the resulting validated connection and a...

DEBIAN-CVE-2023-42805

quinn-proto is a state machine for the QUIC transport protocol. Prior to versions 0.9.5 and 0.10.5, receiving unknown QUIC frames in a QUIC packet could result in a panic. The problem has been fixed in 0.9.5 and 0.10.5 maintenance releases...

CVE-2023-42805

quinn-proto is a state machine for the QUIC transport protocol. Prior to versions 0.9.5 and 0.10.5, receiving unknown QUIC frames in a QUIC packet could result in a panic. The problem has been fixed in 0.9.5 and 0.10.5 maintenance releases...