CVE-2026-12523: Uncontrolled Resource Consumption

Summary Cloudflare quiche's HTTP/3 layer was discovered to be vulnerable to resource exhaustion i.e., memory by means of specially crafted HTTP/3 frames. Impact HTTP/3 defines multiple frame types to support HTTP message exchanges and connection management. Each frame has a length and a payload...

GHSA-MH64-PH39-MRC9 Cloudflare Quiche: Use-after-free in connection ID iterator FFI functions

Impact Cloudflare Quiche was affected by 2 use-after-free vulnerabilities in the connection ID iterator FFI functions. The quicheconnectioniditernext and quicheconnretiredscidnext functions would return a pointer to a ConnectionId to the applications via function arguments, but the the owned...

Cloudflare Quiche: Use-after-free in connection ID iterator FFI functions

Impact Cloudflare Quiche was affected by 2 use-after-free vulnerabilities in the connection ID iterator FFI functions. The quicheconnectioniditernext and quicheconnretiredscidnext functions would return a pointer to a ConnectionId to the applications via function arguments, but the the owned...

EUVD-2025-23915

Malicious code in bioql PyPI...

EUVD-2025-18652

Malicious code in bioql PyPI...

EUVD-2024-1042

Malicious code in bioql PyPI...

EUVD-2025-18651

Malicious code in bioql PyPI...

The vulnerability of the software implementing the transport protocols QUIC and HTTP/3 in CloudFlare Quiche lies in the execution of a loop with an unavailable exit condition. This allows a perpetrator to cause a service failure.

The vulnerability of the software implementing the transport protocols QUIC and HTTP/3 in CloudFlare Quiche lies in the execution of a loop with an unreachable exit condition. Exploiting this vulnerability could allow a malicious actor to cause service failures remotely...

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

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

The CVE-2025-7054 entry concerns Cloudflare’s quiche QUIC/TLS library, where an unauthenticated attacker can trigger an infinite loop by sending RETIRE_CONNECTION_ID frames. The issue arises from how retirement across paths can synchronize multiple active connection IDs, allowing a retirement fra...

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 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: 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...

PT-2025-32266 · Cloudflare · Cloudflare Quiche

Name of the Vulnerable Software and Affected Versions: Cloudflare quiche versions 0.15.0 through 0.24.5 Description: Cloudflare quiche is susceptible to an infinite loop when processing packets containing RETIRE CONNECTION ID frames. QUIC connections utilize connection identifiers IDs with sequen...

The vulnerability of the software implementing the transport protocols QUIC and HTTP/3 in CloudFlare Quiche allows attackers to cause service interruptions due to unlimited resource distribution.

The vulnerability of the software implementing the transport protocols QUIC and HTTP/3 in CloudFlare Quiche lies in the fact that data is sent at a speed that exceeds the actual path support provided by the system due to unlimited resource distribution. Exploiting this vulnerability can allow a...

CVE-2025-4820

Impact Cloudflare quiche was discovered to be vulnerable to incorrect congestion window growth, which could cause it to send data at a rate faster than the path might actually support. An unauthenticated remote attacker can exploit the vulnerability by first completing a handshake and initiating ...

CVE-2025-4821

Impact Cloudflare quiche was discovered to be vulnerable to incorrect congestion window growth, which could cause it to send data at a rate faster than the path might actually support. An unauthenticated remote attacker can exploit the vulnerability by first completing a handshake and initiating ...