CVE-2026-50152

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 t...

CVE-2026-50152

Ceph 's Monitor subscription handler improperly authorizes reads of the config-key store in versions prior to 20.2.4 and 19.2.6 . Any CephX user with only mon allow r permissions can send a single crafted MMonSubscribe message to read the entire store, which contains OSD LUKS disk-encryption pass...

CVE-2026-50152 Ceph Monitor subscription handler improperly authorizes config-key store reads, exposing cluster secrets to read-only users

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...

CVE-2026-50152

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...

EUVD-2026-67315

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...

CVE-2026-39944

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...

CVE-2026-39944 Ceph: CephX AES Authentication error

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...

CVE-2026-39944 Ceph: CephX AES Authentication error

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...

CVE-2026-39944 Ceph: CephX AES Authentication error

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...

CVE-2026-39944

CVE-2026-39944 affects the Ceph RADOS Gateway (RGW) , where STS session tokens are protected by an AES-128-CBC handler that provides no message authentication. An attacker holding any valid STS token can perform a CBC bit-flip on the acct_type, perm_type, and is_admin fields to forge an is_admin ...

CVE-2026-39944

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...

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-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-2025-30156

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...

EUVD-2025-210807

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-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-2025-30156

CVE-2025-30156 affects the Ceph distributed storage platform in versions prior to 20.2.4 (Tentacle) and 19.2.6 . The CephX authentication protocol encrypts tickets with AES-128-CBC using a hard-coded IV and no message authentication, making it vulnerable to the same class of unauthenticated-encry...

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...