CVE-2026-89140 Temporal Server internal completion callbacks are not bound to their namespace, allowing cross-namespace changes to Scheduler V2 schedule state

Temporal Server does not bind internal completion callbacks to the namespace that attached them, which allows an authenticated caller with write permission in one namespace to alter Scheduler V2 schedule state in another namespace. The callback address temporal://internal is reserved for callback...

CVE-2026-89140

The Temporal Server contains a vulnerability where internal completion callbacks are not bound to their specific namespaces. This allows an authenticated caller with write permissions in one namespace to manipulate the Scheduler V2 schedule state in a different namespace. The flaw exists because ...

CVE-2026-89140: Authorization Bypass Through User-Controlled Key

Temporal Server does not bind internal completion callbacks to the namespace that attached them, which allows an authenticated caller with write permission in one namespace to alter Scheduler V2 schedule state in another namespace. The callback address temporal://internal is reserved for callback...

Ubuntu 26.04 LTS : c-ares vulnerability (USN-8844-1)

The remote Ubuntu 26.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-8844-1 advisory. It was discovered that c-ares incorrectly handled certain query completion callbacks. An attacker could possibly use this issue to trigger a use- after-free or...

kernel: drm/i915/gt: Fix potential UAF by revoke of fence registers

A use-after-free was found in drivers/gpu/drm/i915/gt/intelggttfencing.c in the Linux kernel. This issue can be caused by a race among revocation of fence registers on one side and sequential execution of signal callbacks invoked on completion of a request that was using them on the other,...