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...

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...

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...

CVE-2026-11941: Use After Free

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 owned...

EUVD-2025-23915

Malicious code in bioql PyPI...

EUVD-2024-1042

Malicious code in bioql PyPI...

EUVD-2025-18651

Malicious code in bioql PyPI...

EUVD-2025-18652

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 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

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

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...

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...

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...

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...