CVE-2026-53271

The CVE-2026-53271 issue affects the Linux kernel ksmbd during oplock/lease break notifications (smb2_oplock_break_noti and smb2_lease_break_noti). The root cause is reading opinfo->conn into a local variable without READ_ONCE() and without a NULL check after opinfo_get_list() has dropped ci-&...

EUVD-2026-39222

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix NULL-deref of opinfo-conn in oplock/lease break notifiers smb2oplockbreaknoti and smb2leasebreaknoti read opinfo-conn into a local with neither READONCE nor a NULL check. Both run from oplockbreak after opinfogetlist h...

etcd: etcd: Authorization bypass allows information disclosure and denial of service

A flaw was found in etcd, a distributed key-value store. Unauthorized users can bypass authentication or authorization checks when the gRPC API is exposed to untrusted clients. This allows them to access sensitive cluster topology information, disrupt operations through alarms, interfere with lea...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Added a bounds check for the create lease context. A missing bounds check was added for the create lease context...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: smb: client: Avoid race conditions in opencacheddir when leases are broken. A previously valid cfid returned from findorcreatecacheddir might cause a race condition with a broken lease. As a result, opencacheddir may not consider...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: smb/server: Fixed a potential null-ptr-deref of leasectxinfo in smb2open. null-ptr-deref will occur when reqoplevel == SMB2OPLOCKLEVELLEASE and parseleasestate returns NULL. The issue was fixed by checking whether leasectxinfo is...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ksmbd: A memory leak was fixed in the parseleasestate function. The previous patch that added a bounds check for the create lease context introduced a memory leak. When the bounds check fails, the function returns NULL without...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: ksmbd: Fixed issues with use-after-free and NULL dereferencing in smbgrantoplock. smbgrantoplock has two issues in the oplock publication sequence: 1 opinfo is linked into ci-moplist via opinfoadd before addleasegloballist is...

CVE-2026-44283

A flaw was found in etcd, a distributed key-value store. An authenticated user, without sufficient read or lease-related permissions, could bypass Role-Based Access Control RBAC authorization checks. This bypass occurs during transaction operations involving PrevKv or lease attachment in Put...

CVE-2026-8271

A vulnerability was identified in D-Link DNS-320 2.06B01. The impacted element is the function cgispeed/cgidhcpdlease/cgiddns/cgisetip/cgiupnpdel/cgidhcpd/cgiupnpadd/cgiupnpedit of the file /cgi-bin/networkmgr.cgi. The manipulation leads to os command injection. The attack is possible to be carri...

CVE-2026-8629

Crabbox prior to v0.12.0 contains a privilege escalation vulnerability that allows users with shared visibility-only access to obtain Code, WebVNC, and Egress agent tickets by sending POST requests to ticket endpoints. Attackers can exploit insufficient access control checks on the...

GHSA-V8V8-CM84-M686 OpenBao's cross-namespace lease revocation via legacy sys/revoke path bypasses ACL

Impact OpenBao's namespaces provide multi-tenant separation. A tenant who intentionally leaks lease identifiers can have their lease and underlying credential revoked or renewed by a user in another tenant via the legacy, undocumented sys/revoke and sys/renew endpoints. Patch This will be address...

OpenBao's cross-namespace lease revocation via legacy sys/revoke path bypasses ACL

Impact OpenBao's namespaces provide multi-tenant separation. A tenant who intentionally leaks lease identifiers can have their lease and underlying credential revoked or renewed by a user in another tenant via the legacy, undocumented sys/revoke and sys/renew endpoints. Patch This will be address...

Astra Linux - уязвимость в isc-dhcp

In ISC DHCP 4.4.0 - 4.4.3, and ISC DHCP 4.1-ESV-R1 - 4.1-ESV-R16-P1, when the function optioncodehashlookup is called from addOption, it increments the refcount field of the option. However, there is no corresponding call to optiondereference to decrement the refcount field. The function addOptio...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: ksmbd: The use-after-free issue in smblazyparentleasebreakclose has been fixed. The opinfo pointer, which is obtained through rcudereferencefp-fopinfo, is accessed after rcureadunlock has been called. This creates a race conditio...

SUSE CVE-2026-44283

etcd is a distributed key-value store for the data of a distributed system. Prior to 3.4.44, 3.5.30, and 3.6.11, a vulnerability in etcd allows read access via PrevKv, or lease attachment in Put requests within transaction operations, to bypass RBAC authorization checks. An authenticated user...

GHSA-4G9M-RFFV-H6WQ Crabbox: authentication bypass vulnerability that allows impersonation of others by spoofing identity headers

Crabbox prior to v0.12.0 contains an authentication bypass vulnerability that allows non-admin shared-token callers to impersonate other owners or organizations by spoofing identity headers. Attackers can inject malicious X-Crabbox-Owner and X-Crabbox-Org headers in requests authenticated with a...

EUVD-2026-30369

Crabbox prior to v0.12.0 contains an authentication bypass vulnerability that allows non-admin shared-token callers to impersonate other owners or organizations by spoofing identity headers. Attackers can inject malicious X-Crabbox-Owner and X-Crabbox-Org headers in requests authenticated with a...

CVE-2026-44283

etcd is a distributed key-value store for the data of a distributed system. Prior to 3.4.44, 3.5.30, and 3.6.11, a vulnerability in etcd allows read access via PrevKv, or lease attachment in Put requests within transaction operations, to bypass RBAC authorization checks. An authenticated user...

CVE-2026-44283

etcd is a distributed key-value store for the data of a distributed system. Prior to 3.4.44, 3.5.30, and 3.6.11, a vulnerability in etcd allows read access via PrevKv, or lease attachment in Put requests within transaction operations, to bypass RBAC authorization checks. An authenticated user...