CVE-2026-34978 OpenPrinting CUPS: Path traversal in RSS notify-recipient-uri enables file write outside CacheDir/rss (and clobbering of job.cache)

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, the RSS notifier allows .. path traversal in notify-recipient-uri e.g., rss:///../job.cache, letting a remote IPP client write RSS XML bytes outside CacheDir/rss...

EUVD-2026-18786

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache The NFSv4.0 replay cache uses a fixed 112-byte inline buffer rpibufNFSD4REPLAYISIZE to store encoded operation responses. This size was calculated based on OPEN responses and...

EUVD-2026-18782

In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix cacherequest leak in cacherelease When a reader's file descriptor is closed while in the middle of reading a cacherequest rp-offset != 0, cacherelease decrements the request's readers count but never checks whether it...

GHSA-245V-P8FJ-VWM2 Juju has a resource poisoning vulnerability

Summary Any authenticated user, machine or controller under a Juju controller can modify the resources of an application within the entire controller. This one is very straightforward to just read in the code: Step 1: The authorisation mechanism for the resource handler is defined here. One is on...

CVE-2026-31402

A flaw was found in the Linux kernel's NFSv4.0 server nfsd. A remote, unauthenticated attacker can exploit this heap overflow vulnerability in the NFSv4.0 LOCK replay cache. By using two cooperating NFSv4.0 clients, where one sets a lock with a large owner string and another requests a conflictin...

CVE-2026-31400

A flaw was found in the Linux kernel's sunrpc component. When a reader's file descriptor is closed during an active cache request read, the system fails to properly free the associated memory. This memory leak can be exploited by a local attacker, potentially leading to a Denial of Service DoS by...

CVE-2026-31402

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache The NFSv4.0 replay cache uses a fixed 112-byte inline buffer rpibufNFSD4REPLAYISIZE to store encoded operation responses. This size was calculated based on OPEN responses and...

CVE-2026-31400

In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix cacherequest leak in cacherelease When a reader's file descriptor is closed while in the middle of reading a cacherequest rp-offset != 0, cacherelease decrements the request's readers count but never checks whether it...

CVE-2026-31402

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache The NFSv4.0 replay cache uses a fixed 112-byte inline buffer rpibufNFSD4REPLAYISIZE to store encoded operation responses. This size was calculated based on OPEN responses and...

CVE-2026-31400

In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix cacherequest leak in cacherelease When a reader's file descriptor is closed while in the middle of reading a cacherequest rp-offset != 0, cacherelease decrements the request's readers count but never checks whether it...

UBUNTU-CVE-2026-31400

In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix cacherequest leak in cacherelease When a reader's file descriptor is closed while in the middle of reading a cacherequest rp-offset != 0, cacherelease decrements the request's readers count but never checks whether it...

UBUNTU-CVE-2026-23459

In the Linux kernel, the following vulnerability has been resolved: iptunnel: adapt iptunnelxmitstats to NETDEVPCPUSTATDSTATS Blamed commits forgot that vxlan/geneve use udptunnel6xmitskb which call iptunnelxmitstats. iptunnelxmitstats was assuming tunnels were only using NETDEVPCPUSTATTSTATS...

CVE-2026-31403

In the Linux kernel, the following vulnerability has been resolved: NFSD: Hold net reference for the lifetime of /proc/fs/nfs/exports fd The /proc/fs/nfs/exports proc entry is created at module init and persists for the module's lifetime. exportsprocopen captures the caller's current network...

UBUNTU-CVE-2026-31402

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache The NFSv4.0 replay cache uses a fixed 112-byte inline buffer rpibufNFSD4REPLAYISIZE to store encoded operation responses. This size was calculated based on OPEN responses and...

CVE-2026-31403

CVE-2026-31403 is a Linux kernel vulnerability affecting NFSD where a proc entry (/proc/fs/nfs/exports) captured the caller’s network namespace without holding a reference. If the namespace is torn down after opening the exports fd (e.g., container destruction with setns), nfsd_net_exit() may fre...

CVE-2026-31403 NFSD: Hold net reference for the lifetime of /proc/fs/nfs/exports fd

In the Linux kernel, the following vulnerability has been resolved: NFSD: Hold net reference for the lifetime of /proc/fs/nfs/exports fd The /proc/fs/nfs/exports proc entry is created at module init and persists for the module's lifetime. exportsprocopen captures the caller's current network...

CVE-2026-31403

In the Linux kernel, the following vulnerability has been resolved: NFSD: Hold net reference for the lifetime of /proc/fs/nfs/exports fd The /proc/fs/nfs/exports proc entry is created at module init and persists for the module's lifetime. exportsprocopen captures the caller's current network...

CVE-2026-31402 nfsd: fix heap overflow in NFSv4.0 LOCK replay cache

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache The NFSv4.0 replay cache uses a fixed 112-byte inline buffer rpibufNFSD4REPLAYISIZE to store encoded operation responses. This size was calculated based on OPEN responses and...

CVE-2026-31402

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache The NFSv4.0 replay cache uses a fixed 112-byte inline buffer rpibufNFSD4REPLAYISIZE to store encoded operation responses. This size was calculated based on OPEN responses and...

CVE-2026-31402

CVE-2026-31402 affects the Linux kernel NFSv4.0 server (nfsd) via the LOCK replay cache. A large lock owner in a denied LOCK can cause a slab-out-of-bounds write into the 112-byte replay buffer, corrupting adjacent heap memory. The issue can be triggered remotely by two cooperating NFSv4.0 client...