CVE-2026-86433 commonmark 1.5.0 before 2.8.4 Denial of Service via Attributes

commonmark versions from 1.5.0 before 2.8.4 contain a denial of service vulnerability in the Attributes extension where AttributesListener::findTargetAndDirection performs quadratic-time sibling list scanning. Unauthenticated attackers can submit approximately 32 KB of repeated attribute blocks t...

CVE-2026-86433

commonmark (PHP Markdown parser) versions 1.5.0 through 2.8.3 contain a denial-of-service vulnerability in the Attributes extension . The root cause is that AttributesListener::findTargetAndDirection() performs quadratic-time sibling list scanning , allowing an unauthenticated attacker to submit ...

CVE-2026-86433: Inefficient Algorithmic Complexity

commonmark versions from 1.5.0 before 2.8.4 contain a denial of service vulnerability in the Attributes extension where AttributesListener::findTargetAndDirection performs quadratic-time sibling list scanning. Unauthenticated attackers can submit approximately 32 KB of repeated attribute blocks t...

CVE-2026-63968

In CVE-2026-63968, the Linux kernel fixes an infinite loop in IPv6 path selection (fib6_select_path). The advisory notes that writers holding tb6_lock could list_del_rcu(&first->fib6_siblings) without waiting for RCU readers, causing first->fib6_siblings.next to reference the old ring and a...

PT-2026-61286

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An infinite loop can occur in the rt6 fill node function. This happens when writers holding the tb6 lock use list del rcu on rt-fib6 siblings without waiting for RCU readers. Consequentl...

kernel: A heap out-of-bounds write when function perf_read_group is called and sibling_list is smaller than its child's sibling_list

A flaw was found in the Linux kernel's Performance Events system component. A condition can be triggered that allows data to be written past the end or before the beginning of the intended memory buffer. This issue may lead to a system crash, code execution, or local privilege escalation...

kernel: A heap out-of-bounds write when function perf_read_group is called and sibling_list is smaller than its child's sibling_list

A flaw was found in the Linux kernel's Performance Events system component. A condition can be triggered that allows data to be written past the end or before the beginning of the intended memory buffer. This issue may lead to a system crash, code execution, or local privilege escalation...

kernel: A heap out-of-bounds write when function perf_read_group is called and sibling_list is smaller than its child's sibling_list

A flaw was found in the Linux kernel's Performance Events system component. A condition can be triggered that allows data to be written past the end or before the beginning of the intended memory buffer. This issue may lead to a system crash, code execution, or local privilege escalation...

Linux kernel 缓冲区错误漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A local elevation of privilege vulnerability exists in the Linux Kernel. The vulnerability exists in the 'perf' component, where the perfreadgroup function is called when the...

PT-2023-6554 · Linux +9 · Linux Kernel +9

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events perf component can be exploited to achieve local privilege escalation. If perf read group...