CVE-2026-30926 SiYuan Note publish service authorization bypass allows low-privilege users to modify notebook content

SiYuan is a personal knowledge management system. Prior to 3.5.10, a privilege escalation vulnerability exists in the publish service of SiYuan Note that allows low-privilege publish accounts RoleReader to modify notebook content via the /api/block/appendHeadingChildren API endpoint. The endpoint...

CVE-2026-30926

SiYuan is a personal knowledge management system. Prior to 3.5.10, a privilege escalation vulnerability exists in the publish service of SiYuan Note that allows low-privilege publish accounts RoleReader to modify notebook content via the /api/block/appendHeadingChildren API endpoint. The endpoint...

CVE-2026-30926 SiYuan Note publish service authorization bypass allows low-privilege users to modify notebook content

SiYuan is a personal knowledge management system. Prior to 3.5.10, a privilege escalation vulnerability exists in the publish service of SiYuan Note that allows low-privilege publish accounts RoleReader to modify notebook content via the /api/block/appendHeadingChildren API endpoint. The endpoint...

CVE-2026-30926 SiYuan Note publish service authorization bypass allows low-privilege users to modify notebook content

SiYuan is a personal knowledge management system. Prior to 3.5.10, a privilege escalation vulnerability exists in the publish service of SiYuan Note that allows low-privilege publish accounts RoleReader to modify notebook content via the /api/block/appendHeadingChildren API endpoint. The endpoint...

SiYuan: Authorization Bypass Allows Low-Privilege Publish User to Modify Notebook Content via /api/block/appendHeadingChildren

Summary A privilege escalation vulnerability exists in the publish service of SiYuan Note that allows a low-privilege publish account RoleReader to modify notebook content via the /api/block/appendHeadingChildren API endpoint. The endpoint only requires model.CheckAuth, which accepts RoleReader...

kernel: Linux kernel: Use-after-free in device mapper due to race condition in zone reporting

A flaw was found in the Linux kernel's device mapper dm component. When setting up zone append emulation resources, a race condition can occur if the blkrevalidatediskzones function fails while another process simultaneously calls dmblkreportzones. This timing issue can lead to a use-after-free...

ESAA-Security: An Event-Sourced, Verifiable Architecture for Agent-Assisted Security Audits of AI-Generated Code

AI-assisted software generation has increased development speed, but it has also amplified a persistent engineering problem: systems that are functionally correct may still be structurally insecure. In practice, prompt-based security review with large language models often suffers from uneven...

NewStart CGSL MAIN 6.06 (SP) : ncurses Multiple Vulnerabilities (NS-SA-2026-0020)

The remote NewStart CGSL host, running version MAIN 6.06 SP, has ncurses packages installed that are affected by multiple vulnerabilities: - In ncurses 6.0, there is a format string vulnerability in the fmtentry function. A crafted input will lead to a remote arbitrary code execution attack...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-005728)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005728 advisory. In the Linux kernel, the following vulnerability has been resolved: recordmcount: Fix memory leaks in the uwrite function Common realloc mistake: 'fileappend' nulled...

CVE-2026-3463

A weakness has been identified in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::binarywriter::append of the file source/detail/binary.hpp of the component Compound Document Parser. This manipulation causes heap-based buffer overflow. The attack can only be executed...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-005423)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005423 advisory. In the Linux kernel, the following vulnerability has been resolved: recordmcount: Fix memory leaks in the uwrite function Common realloc mistake: 'fileappend' nulled...

Heap-based Buffer Overflow

Overview Affected versions of this package are vulnerable to Heap-based Buffer Overflow via the xlnt::detail::binarywriter::append function in the Compound Document Parser process. An attacker can cause a heap-based buffer overflow by providing specially crafted input to this function during loca...

CVE-2026-3463

A weakness has been identified in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::binarywriter::append of the file source/detail/binary.hpp of the component Compound Document Parser. This manipulation causes heap-based buffer overflow. The attack can only be executed...

CVE-2026-3463 xlnt-community xlnt Compound Document binary.hpp append heap-based overflow

A weakness has been identified in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::binarywriter::append of the file source/detail/binary.hpp of the component Compound Document Parser. This manipulation causes heap-based buffer overflow. The attack can only be executed...

CVE-2026-3463

A weakness has been identified in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::binarywriter::append of the file source/detail/binary.hpp of the component Compound Document Parser. This manipulation causes heap-based buffer overflow. The attack can only be executed...

PT-2026-22730

Name of the Vulnerable Software and Affected Versions xlnt-community xlnt versions up to 1.6.1 Description A flaw exists in xlnt-community xlnt up to version 1.6.1 related to the xlnt::detail::binary writer::append function within the source/detail/binary.hpp file of the Compound Document Parser...

xlnt 安全漏洞

xlnt is an open-source C++ language library developed by the xlnt-community. Versions of xlnt 1.6.1 and earlier contain security vulnerabilities. These vulnerabilities stem from a buffer overflow vulnerability in the function xlnt::detail::binarywriter::append located in the...

cpython: python: cpython: Quadratic algorithm in xml.dom.minidom leads to denial of service

A flaw was found in cpython. This vulnerability allows impacted availability via a quadratic algorithm in xml.dom.minidom methods, such as appendChild, when building excessively nested documents due to a dependency on clearidcache...

cpython: python: cpython: Quadratic algorithm in xml.dom.minidom leads to denial of service

A flaw was found in cpython. This vulnerability allows impacted availability via a quadratic algorithm in xml.dom.minidom methods, such as appendChild, when building excessively nested documents due to a dependency on clearidcache...

cpython: python: cpython: Quadratic algorithm in xml.dom.minidom leads to denial of service

A flaw was found in cpython. This vulnerability allows impacted availability via a quadratic algorithm in xml.dom.minidom methods, such as appendChild, when building excessively nested documents due to a dependency on clearidcache...