CVE-2026-42530

🛡️ CVE-2026-42530 - NGINX HTTP/3 QUIC Use-After-Free Vulnerability High-Severity Use-After-Free in NGINX HTTP/3 QUIC ⚠️ QPACK Encoder Stream Vulnerability 🔍 Overview CVE-2026-42530 is a use-after-free vulnerability in NGINX's ngxhttpv3module. A remote unauthenticated attacker can trigger it by...

CVE-2026-42530

CVE-2026-42530 Scanner for CVE-2026-42530, a use-after-free in nginx's HTTP/3 module. Affected: nginx 1.31.0, 1.31.1 Fixed: nginx 1.31.2 Usage pip install aioquic python3 scannerCVE-2026-42530.py port python3 scannerCVE-2026-42530.py --file hosts.txt How it works Opens two QPACK encoder streams o...

CVE-2025-64702-more

CVE-2025-64702-more CVE-2025-64702, CVE-2026-12523, CVE-2025-13945 Donate Help maintain this project If you find this project useful, please consider supporting its ongoing maintenance through PayPal or ABA Mobile. ❤️ ១០% នៃការបរិច្ចាគរបស់អ្នក នឹងត្រូវបានបរិច្ចាគជូនមន្ទីរពេទ្យគន្ធបុប្ផា។ ❤️ Ten...

CVE-2026-115482

In lsquic before 4.9.0, the HTTP/3 implementation can use an excessive amount of memory because the number of buffered header sets is not limited, as demonstrated by a QPACK amplification attack. This is related to headeroutdynamicentry and esmaxheaderlistsize...

CVE-2026-115482

In lsquic before 4.9.0, the HTTP/3 implementation can use an excessive amount of memory because the number of buffered header sets is not limited, as demonstrated by a QPACK amplification attack. This is related to headeroutdynamicentry and esmaxheaderlistsize...

CVE-2026-115482

The lsquic library (versions before 4.9.0 ) is vulnerable to a memory exhaustion issue within its HTTP/3 implementation. The root cause is an unlimited number of buffered header sets , which can be exploited via a QPACK amplification attack . This vulnerability is specifically related to header_o...

EUVD-2026-108211

In lsquic before 4.9.0, the HTTP/3 implementation can use an excessive amount of memory because the number of buffered header sets is not limited, as demonstrated by a QPACK amplification attack. This is related to headeroutdynamicentry and esmaxheaderlistsize...

CVE-2026-115482

In lsquic before 4.9.0, the HTTP/3 implementation can use an excessive amount of memory because the number of buffered header sets is not limited, as demonstrated by a QPACK amplification attack. This is related to headeroutdynamicentry and esmaxheaderlistsize...

CVE-2026-115482

In lsquic before 4.9.0, the HTTP/3 implementation can use an excessive amount of memory because the number of buffered header sets is not limited, as demonstrated by a QPACK amplification attack. This is related to headeroutdynamicentry and esmaxheaderlistsize...

New QPACK Flaws Can Crash HTTP/3 Servers, Trigger Up to 4,000-Fold Memory Amplification

A remote attacker who has not logged in can crash many HTTP/3 web servers with a single connection, security firm FoxIO disclosed, releasing working proof-of-concept code. By sending a small batch of compressed HTTP headers that expands in memory to a much larger set, the attacker can force the...

PT-2026-121409

In lsquic before 4.9.0, the HTTP/3 implementation can use an excessive amount of memory because the number of buffered header sets is not limited, as demonstrated by a QPACK amplification attack. This is related to header out dynamic entry and es max header list size...

LiteSpeed Tech “Resource Management Error” vulnerability

LiteSpeed Tech versions prior to 4.9.0 contain a resource management error vulnerability. This vulnerability arises because the HTTP/3 implementation fails to limit the number of buffer header sets, potentially leading to excessive memory consumption and susceptibility to QPACK amplification...

Uncontrolled Resource Consumption

io.netty, netty-codec-http3 is vulnerable to uncontrolled resource consumption. The vulnerability is due to improper validation and lack of size limits on QPACK encoder-stream string literals, which allows a remote unauthenticated attacker to exhaust server heap memory and trigger an...

Denial-Of-Service (DoS)

io.netty, netty-codec-http3 is vulnerable to a denial-of-service DoS. The vulnerability is due to unbounded processing of continuation bytes, which allows a remote, unauthenticated attacker to exhaust heap memory and consume excessive CPU resources by sending malformed QPACK data, potentially...

Denial Of Service (DoS)

io.netty:netty-codec-http3 is vulnerable to Denial of service DoS. The vulnerability is due to QPACK encoder state being retained without limits or being released when HTTP/3 streams complete, which allows a remote, unauthenticated attacker to exhaust server memory by sending sequential HTTP/3...

Linux Distros Unpatched Vulnerability : CVE-2026-100660

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Netty's HTTP/3 codec io.netty:netty-codec-http3 from 4.2.0.Final through 4.2.17.Final retains unbounded per-stream QPACK encoder state. QpackEncoder stores a...

Linux Distros Unpatched Vulnerability : CVE-2026-100662

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Netty's HTTP/3 codec io.netty:netty-codec-http3 versions 4.2.0.Final through 4.2.17.Final contain an uncontrolled resource consumption vulnerability in the QPAC...

CVE-2026-100660

A flaw was found in Netty's HTTP/3 codec netty-codec-http3. The HTTP/3 header compression QPACK encoder stores per-stream state indefinitely when remote clients do not acknowledge encoded data, as no memory limits are enforced. A remote, unauthenticated attacker can exploit this flaw by issuing...

CVE-2026-100661

A flaw was found in Netty's HTTP/3 codec. A remote, unauthenticated attacker can cause a Denial of Service DoS by sending a specially crafted stream of data to the QPACK integer decoder. Because the decoder fails to limit incoming continuation bytes, data accumulates indefinitely in memory while...

CVE-2026-100660

Netty's HTTP/3 codec io.netty:netty-codec-http3 from 4.2.0.Final through 4.2.17.Final retains unbounded per-stream QPACK encoder state. QpackEncoder stores a queue and a dynamic-table index tracker for every encoded field section that references the QPACK dynamic table, keyed by the peer-controll...