Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the QUIC connection ID handling, which queues a RETIRECONNECTIONID frame on the control frame queue for every NEWCONNECTIONID frame received, without the limit that applies to usab...

CVE-2026-84784

The OpenSSL QUIC stack is vulnerable to a Denial of Service (DoS) attack due to a flaw in how it handles connection identifier (CID) retirement. A malicious remote peer can flood the local stack with NEW_CONNECTION_ID frames while withholding acknowledgments. Because the stack incorrectly retires...

EUVD-2026-89015

Issue summary: A malicious remote peer may flood the local QUIC stack with NEWCONNECTIONID frames by avoiding a limit check on how many connection IDs the remote QUIC stack can use. Impact summary: The local QUIC stack sends a RETIRECONNID frame for every NEWCONNECTIONID frame it receives. The...

CVE-2026-84784 QUIC: Unbounded RETIRE_CONNECTION_ID Backlog

Issue summary: A malicious remote peer may flood the local QUIC stack with NEWCONNECTIONID frames by avoiding a limit check on how many connection IDs the remote QUIC stack can use. Impact summary: The local QUIC stack sends a RETIRECONNID frame for every NEWCONNECTIONID frame it receives. The...

CVE-2026-84784 QUIC: Unbounded RETIRE_CONNECTION_ID Backlog

Issue summary: A malicious remote peer may flood the local QUIC stack with NEWCONNECTIONID frames by avoiding a limit check on how many connection IDs the remote QUIC stack can use. Impact summary: The local QUIC stack sends a RETIRECONNID frame for every NEWCONNECTIONID frame it receives. The...

CVE-2026-84784

Issue summary: A malicious remote peer may flood the local QUIC stack with NEWCONNECTIONID frames by avoiding a limit check on how many connection IDs the remote QUIC stack can use. Impact summary: The local QUIC stack sends a RETIRECONNID frame for every NEWCONNECTIONID frame it receives. The...

CVE-2026-84784 QUIC: Unbounded RETIRE_CONNECTION_ID Backlog

Issue summary: A malicious remote peer may flood the local QUIC stack with NEWCONNECTIONID frames by avoiding a limit check on how many connection IDs the remote QUIC stack can use. Impact summary: The local QUIC stack sends a RETIRECONNID frame for every NEWCONNECTIONID frame it receives. The...

CVE-2026-84784

Issue summary: A malicious remote peer may flood the local QUIC stack with NEWCONNECTIONID frames by avoiding a limit check on how many connection IDs the remote QUIC stack can use. Impact summary: The local QUIC stack sends a RETIRECONNID frame for every NEWCONNECTIONID frame it receives. The...

UBUNTU-CVE-2026-84784

Issue summary: A malicious remote peer may flood the local QUIC stack with NEWCONNECTIONID frames by avoiding a limit check on how many connection IDs the remote QUIC stack can use. Impact summary: The local QUIC stack sends a RETIRECONNID frame for every NEWCONNECTIONID frame it receives. The...

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...

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...

EUVD-2025-23915

Malicious code in bioql PyPI...

CVE-2025-7054

Cloudflare quiche was discovered to be vulnerable to an infinite loop when sending packets containing RETIRECONNECTIONID frames. QUIC connections possess a set of connection identifiers IDs; see Section 5.1 of RFC 9000 https://datatracker.ietf.org/doc/html/rfc9000section-5.1 . Once the QUIC...

CVE-2025-7054 Infinite loop triggered by connection ID retirement

Cloudflare quiche was discovered to be vulnerable to an infinite loop when sending packets containing RETIRECONNECTIONID frames. QUIC connections possess a set of connection identifiers IDs; see Section 5.1 of RFC 9000 https://datatracker.ietf.org/doc/html/rfc9000section-5.1 . Once the QUIC...

CVE-2025-7054

Cloudflare quiche was discovered to be vulnerable to an infinite loop when sending packets containing RETIRECONNECTIONID frames. QUIC connections possess a set of connection identifiers IDs; see Section 5.1 of RFC 9000 https://datatracker.ietf.org/doc/html/rfc9000section-5.1 . Once the QUIC...

CVE-2025-7054: Loop with Unreachable Exit Condition

Cloudflare quiche was discovered to be vulnerable to an infinite loop when sending packets containing RETIRECONNECTIONID frames. QUIC connections possess a set of connection identifiers IDs; see Section 5.1 of RFC 9000 https://datatracker.ietf.org/doc/html/rfc9000section-5.1 . Once the QUIC...

CVE-2024-22189

quic-go is an implementation of the QUIC protocol in Go. Prior to version 0.42.0, an attacker can cause its peer to run out of memory sending a large number of NEWCONNECTIONID frames that retire old connection IDs. The receiver is supposed to respond to each retirement frame with a...

CVE-2024-22189 QUIC's Connection ID Mechanism vulnerable to Memory Exhaustion Attack

quic-go is an implementation of the QUIC protocol in Go. Prior to version 0.42.0, an attacker can cause its peer to run out of memory sending a large number of NEWCONNECTIONID frames that retire old connection IDs. The receiver is supposed to respond to each retirement frame with a...

Connection ID Exhaustion

github.com/quic-go/quic-go is vulnerable to a Connection ID exhaustion. The vulnerability is caused by an attacker manipulating of the round-trip time RTT estimate of the peer by sending a large number of NEWCONNECTIONID frames to exhaust the memory of the receiver, which allows an attacker to...

GHSA-C33X-XQRF-C478 QUIC's Connection ID Mechanism vulnerable to Memory Exhaustion Attack

An attacker can cause its peer to run out of memory by sending a large number of NEWCONNECTIONID frames that retire old connection IDs. The receiver is supposed to respond to each retirement frame with a RETIRECONNECTIONID frame. The attacker can prevent the receiver from sending out the vast...