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...

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...

EUVD-2026-89012

Issue summary: SM2 signature generation uses non-constant-time arithmetic on secret values, forming a timing side-channel. Impact summary: An attacker able to measure SM2 signing times may learn information about the per-signature secret nonce, which over many signatures can, via a lattice / Hidd...

CVE-2026-77696 Timing Side-Channel in SM2 Signature Generation

Issue summary: SM2 signature generation uses non-constant-time arithmetic on secret values, forming a timing side-channel. Impact summary: An attacker able to measure SM2 signing times may learn information about the per-signature secret nonce, which over many signatures can, via a lattice / Hidd...

CVE-2026-75806 Unauthenticated and Undersized DTLS 1.2 AEAD Record Causes DoS

Issue summary: An established DTLS 1.2 association using an AEAD cipher suite can be terminated by a single unauthenticated datagram whose encrypted fragment is shorter than the mandatory explicit IV and authentication tag overhead. Impact summary: An attacker who can send a datagram that is rout...

CVE-2026-75806

A flaw in OpenSSL allows a remote, unauthenticated attacker to cause a Denial of Service (DoS) by terminating an active DTLS 1.2 session using an AEAD cipher suite. The vulnerability arises because the record layer fails to validate that a record is long enough to contain the mandatory explicit I...

CVE-2026-75804

The OpenSSL QUIC stack fails to enforce connection-level flow control for streams, a vulnerability categorized as CWE-770 . While the stack validates stream-level limits, it neglects connection-level limits, allowing a remote peer to send more bytes than permitted by the connection window as long...

EUVD-2026-89009

Issue summary: OpenSSL QUIC stack does not enforce connection level flow control for streams. Remote peers may send more bytes as long as they fit within the stream flow control limits. Impact summary: A malicious remote peer may exploit the lack of connection flow control for streams to make the...

CVE-2026-75804 QUIC Connection-Level Flow Control is Not Enforced for Streams

Issue summary: OpenSSL QUIC stack does not enforce connection level flow control for streams. Remote peers may send more bytes as long as they fit within the stream flow control limits. Impact summary: A malicious remote peer may exploit the lack of connection flow control for streams to make the...

CVE-2026-75804 QUIC Connection-Level Flow Control is Not Enforced for Streams

Issue summary: OpenSSL QUIC stack does not enforce connection level flow control for streams. Remote peers may send more bytes as long as they fit within the stream flow control limits. Impact summary: A malicious remote peer may exploit the lack of connection flow control for streams to make the...

CVE-2026-54873 QUIC STREAM Fragment Metadata DoS

Issue summary: QUIC process may keep memory for QUIC packet buffer for much longer period than necessary. Impact summary: Remote peer can exploit this vulnerability by sending maliciously crafted packets, making the local QUIC stack to keep the memory for packet buffers allocated. The time for...

CVE-2026-54873

A flaw in OpenSSL allows a remote attacker to cause a Denial of Service (DoS) by sending specially crafted network packets to a QUIC protocol endpoint. The vulnerability occurs because the QUIC stack retains memory in packet buffers until the receiving application copies the stream data, a design...

EUVD-2026-89005

Issue summary: QUIC process may keep memory for QUIC packet buffer for much longer period than necessary. Impact summary: Remote peer can exploit this vulnerability by sending maliciously crafted packets, making the local QUIC stack to keep the memory for packet buffers allocated. The time for...

CVE-2026-54873 QUIC STREAM Fragment Metadata DoS

Issue summary: QUIC process may keep memory for QUIC packet buffer for much longer period than necessary. Impact summary: Remote peer can exploit this vulnerability by sending maliciously crafted packets, making the local QUIC stack to keep the memory for packet buffers allocated. The time for...

CVE-2026-35191 QUIC Unvalidated Amplification Credit may be Over Accounted

Issue summary: The OpenSSL QUIC server, when configured to not preform address validation, can be forced to count incoming packets multiple times in its unvalidated credit computation, leading to a violation of the RFC 9000 unvalidated connection amplification limit of 3 times the amount of data...

CVE-2026-35191 QUIC Unvalidated Amplification Credit may be Over Accounted

Issue summary: The OpenSSL QUIC server, when configured to not preform address validation, can be forced to count incoming packets multiple times in its unvalidated credit computation, leading to a violation of the RFC 9000 unvalidated connection amplification limit of 3 times the amount of data...

CVE-2026-35191

A flaw in the OpenSSL QUIC server allows a remote attacker to trigger a Denial of Service (DoS) attack via network traffic amplification. When client address validation is disabled, the QUIC stack incorrectly accounts for unvalidated credit by adding the entire datagram length for every packet co...

CVE-2026-35189

Issue summary: A certificate with many nameRelativeToCRLIssuer CRL distribution points causes disproportionate heap growth when OpenSSL caches X.509 extensions. Impact summary: Receiving a crafted certificate from a malicious peer can lead to significant memory pressure and possible Denial of...

CVE-2026-46395-haxcms-hmac-key-leak

CVE-2026-46395 - HAXcms Node.js 因 HMAC 缺陷导致的私钥泄露 CWE-321 / CWE-200 仅限授权安全测试与研究的概念验证。 此处描述的漏洞已在 HAXcms 最新版本中修复 。 本 PoC 的发布是为了让防御者和研究人员能够在其拥有或明确授权测试的未打补丁实例上验证此问题。 | ---|--- CVE| CVE-2026-46395 组件| HAXcms Node.js 后端 - haxcms-nodejs/src/lib/HAXCMS.js 漏洞| 硬编码加密密钥 + 私钥泄露 CWE-321, CWE-200 严重性| 严重 - CVSS...

CVE-2026-66751-Insufficient-Access-Controls-Allow-for-Unauthorized-Room-Deletion-Let-s-Chat-

安全公告：访问控制不足导致未授权删除房间（Let's Chat） 分配的 CVE 编号： CVE-2026-66751 摘要 DELETE /rooms/:room 除了要求登录之外，不执行任何授权检查。任何账户都可以归档服务器上的任意房间，包括该账户无权读取、加入或修改的私有房间和密码保护房间。 归档就是 Let's Chat 删除房间的方式。房间会从房间列表中消失，直接查找返回 404，向其发布消息或上传文件也会被拒绝。应用程序中没有任何代码路径可以撤销此操作。 受影响版本 仓库 URL：https://github.com/sdelements/lets-chat 从 0.3.0（...