CVE-2026-104355

A Temporal Server cluster is vulnerable to unauthorized modification of its local namespaces (including the built-in temporal-system namespace) when connected to a registered peer cluster. The root cause is an incorrect authorization logic where the receiving cluster fails to verify if a namespac...

CVE-2026-104355 Temporal Server applies inbound namespace replication from a connected peer cluster to local namespaces

A connected peer cluster can modify a Temporal Server cluster's local namespaces, which are never replicated to that peer, because the receiving cluster applies inbound namespace replication updates to them. In a multi-cluster deployment, each cluster pulls replication tasks from the remote...

kernel: use-after-free in tc_new_tfilter() in net/sched/cls_api.c

A use-after-free vulnerability was found in the tcnewtfilter function in net/sched/clsapi.c in the Linux kernel. The availability of local, unprivileged user namespaces allows privilege escalation...

PT-2022-3307

Name of the Vulnerable Software and Affected Versions Firejail versions 0.9.68 Description A Privilege Context Switching issue was discovered in join.c in Firejail. By crafting a bogus Firejail container that is accepted by the Firejail setuid-root program as a join target, a local attacker can...