CVE-2025-30156 Ceph: AES-CBC misuse in CephX and RADOSGW enables authentication bypass and credential forgery

Ceph is an open-source distributed storage platform providing object, block, and file storage. In versions prior to 20.2.4 and 19.2.6, the CephX authentication protocol encrypts tickets with AES-128-CBC in an unauthenticated mode that uses a hard-coded initialization vector and no message...

CVE-2026-80527

A flaw was found in the Linux kernel's Ceph client. A reader can experience an indefinite hang when the client's local capability state mdswanted becomes stale after a Metadata Server MDS capability revocation. This occurs because the client believes it still wants a capability e.g., FILERD that...

CVE-2026-80557

A flaw was found in the kernel's libceph component. A malicious or compromised Ceph Object Storage Daemon OSD can send a specially crafted message that causes an out-of-bounds read when processing watcher information. This vulnerability can lead to memory corruption or a denial of service,...

EUVD-2026-66472

In the Linux kernel, the following vulnerability has been resolved: libceph: fix OOB read in decodewatchers via missing bounds check cephstartdecoding validates that structlen bytes remain in the buffer after the encoding header, but accepts structlen=0 as valid: cephdecodeneedp, end, 0, bad alwa...

EUVD-2026-66593

In the Linux kernel, the following vulnerability has been resolved: ceph: fix hanging cephgetcaps with stale mdswanted A reader can hang forever in cephgetcaps when the client no longer holds FILERD, but local cap state still says that the capability is already wanted via mdswanted. One way to...

EUVD-2026-66594

In the Linux kernel, the following vulnerability has been resolved: ceph: avoid fs reclaim while using current-journalinfo handlereply stores a cephmdsrequest pointer in current-journalinfo while filling the inode and dentry cache from an MDS reply. An allocation in this section can enter direct...

PT-2026-82771

Ceph is an open-source distributed storage platform providing object, block, and file storage. In versions prior to 20.2.4 and 19.2.6, the Ceph Object Gateway RGW SigV4 handler does not reject requests that carry x-amz- headers absent from the signed header set, allowing anyone holding a presigne...

PT-2026-82767

Ceph is an open-source distributed storage platform providing object, block, and file storage. In versions prior to 20.2.4 and 19.2.6, the Monitor subscription handler fails to properly authorize access to the configuration-key store, allowing any CephX user with only mon allow r capabilities to...

PT-2026-82765

Ceph is an open-source distributed storage platform providing object, block, and file storage. In versions prior to 20.2.4 and 19.2.6, the RADOS Gateway RGW protects STS session tokens with an AES-128-CBC handler that provides no message authentication, allowing an attacker who holds any valid ST...

AZL-97763 CVE-2026-80557 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: libceph: fix OOB read in decodewatchers via missing bounds check cephstartdecoding validates that structlen bytes remain in the buffer after the encoding header, but accepts structlen=0 as valid: cephdecodeneedp, end, 0, bad alwa...

CVE-2026-80557

In the Linux kernel, the following vulnerability has been resolved: libceph: fix OOB read in decodewatchers via missing bounds check cephstartdecoding validates that structlen bytes remain in the buffer after the encoding header, but accepts structlen=0 as valid: cephdecodeneedp, end, 0, bad alwa...

CVE-2026-80558

In the Linux kernel, the following vulnerability has been resolved: libceph: Avoid using invalid osd indices from primarytemp A corrupted osdmap received from a Ceph monitor or OSD may contain osd indices in its pgtemp, primarytemp, pgupmap, and pgupmapitems parts that don't exist, i.e., that are...

AZL-97677 CVE-2026-80527 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: ceph: fix hanging cephgetcaps with stale mdswanted A reader can hang forever in cephgetcaps when the client no longer holds FILERD, but local cap state still says that the capability is already wanted via mdswanted. One way to...

AZL-97689 CVE-2026-80528 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: ceph: avoid fs reclaim while using current-journalinfo handlereply stores a cephmdsrequest pointer in current-journalinfo while filling the inode and dentry cache from an MDS reply. An allocation in this section can enter direct...

CVE-2026-80527

In the Linux kernel, the following vulnerability has been resolved: ceph: fix hanging cephgetcaps with stale mdswanted A reader can hang forever in cephgetcaps when the client no longer holds FILERD, but local cap state still says that the capability is already wanted via mdswanted. One way to...

CVE-2026-80528

In the Linux kernel, the following vulnerability has been resolved: ceph: avoid fs reclaim while using current-journalinfo handlereply stores a cephmdsrequest pointer in current-journalinfo while filling the inode and dentry cache from an MDS reply. An allocation in this section can enter direct...

CVE-2026-80561 libceph: fix multiple unsafe decodes in decode_locker()

In the Linux kernel, the following vulnerability has been resolved: libceph: fix multiple unsafe decodes in decodelocker decodelocker in clslockclient.c contains three unsafe decode operations that allow a malicious or compromised OSD to trigger slab-out-of-bounds reads: 1. cephdecodecopy at the...

CVE-2026-80561 libceph: fix multiple unsafe decodes in decode_locker()

In the Linux kernel, the following vulnerability has been resolved: libceph: fix multiple unsafe decodes in decodelocker decodelocker in clslockclient.c contains three unsafe decode operations that allow a malicious or compromised OSD to trigger slab-out-of-bounds reads: 1. cephdecodecopy at the...

CVE-2026-80561

CVE-2026-80561 is a critical (CVSS 9.8) vulnerability in the Linux kernel's libceph component. The decode_locker() function in cls_lock_client.c contains three unsafe decode operations with missing bounds checks, allowing a malicious or compromised OSD in a multi-tenant Ceph deployment to trigger...

CVE-2026-80558 libceph: Avoid using invalid osd indices from primary_temp

In the Linux kernel, the following vulnerability has been resolved: libceph: Avoid using invalid osd indices from primarytemp A corrupted osdmap received from a Ceph monitor or OSD may contain osd indices in its pgtemp, primarytemp, pgupmap, and pgupmapitems parts that don't exist, i.e., that are...