CVE-2026-55704

Discourse is an open-source discussion platform. Prior o 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, users who were allowed to view a group’s activity, but were not permitted to see shared drafts, could still receive shared-draft entries through the group posts and group mentions endpoints. This...

CVE-2026-55704

Discourse is an open-source discussion platform. Prior o 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, users who were allowed to view a group’s activity, but were not permitted to see shared drafts, could still receive shared-draft entries through the group posts and group mentions endpoints. This...

CVE-2026-55704 Discourse: Shared-draft titles and excerpts leak through group post serialization

Discourse is an open-source discussion platform. Prior o 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, users who were allowed to view a group’s activity, but were not permitted to see shared drafts, could still receive shared-draft entries through the group posts and group mentions endpoints. This...

EUVD-2026-60237

Discourse is an open-source discussion platform. Prior o 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, users who were allowed to view a group’s activity, but were not permitted to see shared drafts, could still receive shared-draft entries through the group posts and group mentions endpoints. This...

CVE-2026-55704

Discourse serializes shared-draft topics and posts through the group posts and group mentions endpoints regardless of draft-view permissions, leaking unpublished draft titles and content to any group-activity viewer. Affected versions prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0 are fixed ...

EUVD-2026-60235

Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.1, on sites with category group moderation enabled, the review queue could include an excerpt and permalink of the private message attached to a flag, even when the reviewing category moderator was...

Group-Office < 26.0.5 - Remote Code Execution

Group-Office before versions 6.8.150, 25.0.82, and 26.0.5 is vulnerable to remote code execution via OS command injection. The endpoint email/message/tnefAttachmentFromTempFile directly concatenates the user-controlled parameter tmpfile into an exec call. By injecting shell metacharacters into...

UBUNTU-CVE-2026-74571

In the Linux kernel, the following vulnerability has been resolved: btrfs: skip global block reserve accounting for rescue mounts BUG Mounting with rescue=ibadroots after corrupting the block group tree root triggers a NULL pointer dereference: BUG: kernel NULL pointer dereference, address:...

UBUNTU-CVE-2026-74493

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix socket use-after-free during link group termination smclgrterminate drops connslock after finding a connection in lgr-connsall, but before taking a reference on its socket. The connection is embedded in the socket, a...

PT-2026-76682

Discourse is an open-source discussion platform. Prior o 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, users who were allowed to view a group’s activity, but were not permitted to see shared drafts, could still receive shared-draft entries through the group posts and group mentions endpoints. This...

UBUNTU-CVE-2026-74520

In the Linux kernel, the following vulnerability has been resolved: iommu/iommufd: Fix IOPF group ownership UAF iopfgroupalloc links each last-page IOPF group into the generic IOPF pending list before invoking the domain fault handler. iommufdfaultiopfhandler also queued an accepted group in the...

UBUNTU-CVE-2026-72183

In the Linux kernel, the following vulnerability has been resolved: landlock: Fix LANDLOCKSCOPESIGNAL bypass on the SIGIO path LANDLOCKSCOPESIGNAL must prevent a sandboxed process from signaling processes outside its Landlock domain. It can be bypassed through the asynchronous SIGIO delivery path...

UBUNTU-CVE-2026-72080

In the Linux kernel, the following vulnerability has been resolved: fs/resctrl: Fix use-after-free during unmount During unmount or failure teardown all mondata structures that contain monitoring event file private data are freed after which kernfs nodes are removed. However, the RDTDELETED flag ...

UBUNTU-CVE-2026-72386

In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Fix a leak when a group is evicted before the tiler OOM is serviced A group ref is tied to the pending tileroomwork, so we need to release it if the cancel was effective...

CVE-2026-74571

In the Linux kernel, the following vulnerability has been resolved: btrfs: skip global block reserve accounting for rescue mounts BUG Mounting with rescue=ibadroots after corrupting the block group tree root triggers a NULL pointer dereference: BUG: kernel NULL pointer dereference, address:...

CVE-2026-74520

In the Linux kernel, the following vulnerability has been resolved: iommu/iommufd: Fix IOPF group ownership UAF iopfgroupalloc links each last-page IOPF group into the generic IOPF pending list before invoking the domain fault handler. iommufdfaultiopfhandler also queued an accepted group in the...

CVE-2026-74571

CVE-2026-74571 affects the Linux kernel/btrfs. The issue occurs when mounting with rescue=ibadroots on a corrupted block group tree, leading to a NULL pointer dereference in btrfs_update_global_block_rsv. The root cause is that btrfs_read_roots() may leave a root pointer NULL while its on-disk fe...

CVE-2026-74571

In the Linux kernel, the following vulnerability has been resolved: btrfs: skip global block reserve accounting for rescue mounts BUG Mounting with rescue=ibadroots after corrupting the block group tree root triggers a NULL pointer dereference: BUG: kernel NULL pointer dereference, address:...

CVE-2026-74493

CVE-2026-74493 affects the Linux kernel net/smc subsystem. The issue is a use-after-free during link group termination in __smc_lgr_terminate: conns_lock is dropped after locating a connection but before taking a reference on its socket. Since the socket is embedded in the connection and the regi...

CVE-2026-74493 net/smc: fix socket use-after-free during link group termination

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix socket use-after-free during link group termination smclgrterminate drops connslock after finding a connection in lgr-connsall, but before taking a reference on its socket. The connection is embedded in the socket, a...