GO-2026-5651 Mattermost doesn't check the create_post channel permission during post edit operations in github.com/mattermost/mattermost-server

Mattermost doesn't check the createpost channel permission during post edit operations in github.com/mattermost/mattermost-server. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. If this is causing...

CVE-2026-55667

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.16, a scoped, non-admin File Browser user holding only the Create permission can delete arbitrary files outside their scope other tenants' data, a...

GO-2026-5257 Dalfox Server Mode has an Unauthenticated Arbitrary File Create/Append via `output` Option in github.com/hahwul/dalfox

Dalfox Server Mode has an Unauthenticated Arbitrary File Create/Append via output Option in github.com/hahwul/dalfox...

GO-2026-5143 Portainer has an endpoint security bypass via Swarm service create/update in github.com/portainer/portainer

Portainer has an endpoint security bypass via Swarm service create/update in github.com/portainer/portainer. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. If this is causing false-positive reports from...

CVE-2026-55667 File Browser: Out-of-scope file deletion by a Create-only scoped user via symlink-following RemoveAll in upload failure-cleanup

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.16, a scoped, non-admin File Browser user holding only the Create permission can delete arbitrary files outside their scope other tenants' data, a...

CVE-2026-55667

File Browser CVE-2026-55667 allows a scoped, non-admin user with only Create permission to delete files outside their scope during failed-upload cleanup. The issue stems from ScopedFs.RemoveAll bypassing the symlink guard that other methods enforce, with the direct-upload cleanup path invoking Re...

CVE-2026-55667 File Browser: Out-of-scope file deletion by a Create-only scoped user via symlink-following RemoveAll in upload failure-cleanup

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.16, a scoped, non-admin File Browser user holding only the Create permission can delete arbitrary files outside their scope other tenants' data, a...

CVE-2026-55667 File Browser: Out-of-scope file deletion by a Create-only scoped user via symlink-following RemoveAll in upload failure-cleanup

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.16, a scoped, non-admin File Browser user holding only the Create permission can delete arbitrary files outside their scope other tenants' data, a...

CVE-2026-48940

A Joomla user with K2 "create item" rights Author tier by default can submit an article whose embedVideo POST field contains a raw...

CVE-2026-48940

A Joomla user with K2 "create item" rights Author tier by default can submit an article whose embedVideo POST field contains a raw tag; K2 stores it verbatim and renders it unescaped to any visitor of the article page...

xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: use-after-free information disclosure in CreateSaverWindow()

A use-after-free flaw was found in the X.Org X server and Xwayland in CreateSaverWindow. A client can trigger a use-after-free read after changing window attributes and forcing the screen saver, leading to information disclosure...

RLSA-2026:27789 Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: can: isotp: fix tx.buf use-after-free in isotpsendmsg CVE-2026-31474 kernel: mptcp: fix slab-use-after-free in inetlookupestablished CVE-2026-31669 kernel: xen/privcmd: fix double free vi...

CVE-2026-53244

In the Linux kernel, the following vulnerability has been resolved: VFS: fix possible failure to unlock in nfsd4createfile atomiccreate in fs/namei.c drops the reference to the dentry when it returns an error. This behaviour was imported into dentrycreate so that it will drop the reference if an...

CVE-2026-53244

In the Linux kernel, the following vulnerability has been resolved: VFS: fix possible failure to unlock in nfsd4createfile atomiccreate in fs/namei.c drops the reference to the dentry when it returns an error. This behaviour was imported into dentrycreate so that it will drop the reference if an...

CVE-2026-53160

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix use-after-free race in fastrpcmapcreate fastrpcmaplookup returns a raw pointer after releasing fl-lock. The caller fastrpcmapcreate then calls fastrpcmapget krefgetunlesszero on this unprotected pointer. A...

UBUNTU-CVE-2026-53244

In the Linux kernel, the following vulnerability has been resolved: VFS: fix possible failure to unlock in nfsd4createfile atomiccreate in fs/namei.c drops the reference to the dentry when it returns an error. This behaviour was imported into dentrycreate so that it will drop the reference if an...

CVE-2026-53244

In the Linux kernel, the following vulnerability has been resolved: VFS: fix possible failure to unlock in nfsd4createfile atomiccreate in fs/namei.c drops the reference to the dentry when it returns an error. This behaviour was imported into dentrycreate so that it will drop the reference if an...

CVE-2026-53244 VFS: fix possible failure to unlock in nfsd4_create_file()

In the Linux kernel, the following vulnerability has been resolved: VFS: fix possible failure to unlock in nfsd4createfile atomiccreate in fs/namei.c drops the reference to the dentry when it returns an error. This behaviour was imported into dentrycreate so that it will drop the reference if an...

CVE-2026-53244 VFS: fix possible failure to unlock in nfsd4_create_file()

In the Linux kernel, the following vulnerability has been resolved: VFS: fix possible failure to unlock in nfsd4createfile atomiccreate in fs/namei.c drops the reference to the dentry when it returns an error. This behaviour was imported into dentrycreate so that it will drop the reference if an...

CVE-2026-53244

CVE-2026-53244 concerns the Linux kernel NFSD component. When exporting a filesystem with the atomic_create hook, an error from atomic_create() could cause nfsd4_create_file() to fail unlocking the parent directory, risking resource exhaustion and potential DoS. The root cause is that dentry hand...