CVE-2026-80657

A flaw was found in the Linux kernel's accel/amdxdna component. The management mailbox channel cleanup helpers, xdnamailboxfreechannel and xdnamailboxstopchannel, could be called from error handling paths when the mgmtchann was already destroyed. This could lead to a NULL pointer dereference,...

CVE-2026-80638

A flaw was found in the ocfs2 component of the Linux kernel. When a user unlinks a refcounted file whose refcount tree has leaf blocks, an out-of-bounds write occurs within the ocfs2removerefcountextent function. This happens because a memset operation writes past the intended memory boundary due...

CVE-2026-40015

A flaw was found in Dovecot's imap-hibernate service. An authenticated attacker can open numerous connections and send malformed commands, leading to an out-of-bounds read. This can intermittently crash the process, interrupting hibernated IMAP sessions and causing a denial of service for affecte...

CVE-2026-40014

A flaw was found in Dovecot. A remote attacker, by sending a specially crafted email message header to a user, can cause the Internet Message Access Protocol IMAP THREAD command to consume excessive CPU resources. When a mail client processes this message, it can lead to degradation or a denial o...

CVE-2026-40013

A flaw was found in Dovecot. An authenticated attacker can submit a specially crafted Sieve script containing an extreme numeric literal to the ManageSieve service. This action triggers an out-of-bounds write during script compilation, leading to memory corruption and a crash of the ManageSieve...

CVE-2026-33607

A flaw was found in Dovecot. An authenticated attacker can exploit a vulnerability in the IMAP LIST command to consume excessive CPU resources. This can lead to a degradation of service or a complete denial of service DoS for the IMAP server, impacting the availability of email services. Mitigati...

CVE-2026-33606

A flaw was found in Dovecot. A malicious user can craft specific mail content that, when an administrator later uses the dsync tool with the stream protocol, is interpreted as dsync commands. This command injection allows the user to modify the state of mailboxes on the destination, including...

CVE-2026-42007

A flaw was found in Dovecot. An authenticated attacker can use a Sieve script with the editheader extension to trigger a use-after-free vulnerability in the mail editing code. This can lead to memory corruption, potentially crashing the mail delivery process and allowing for arbitrary code...

CVE-2026-33605

A flaw was found in Dovecot. An unauthenticated attacker can crash the ManageSieve login process by sending a small malformed command before authenticating. This can lead to a denial of service for Sieve script management, affecting either the attacker's connection or all connections handled by t...

CVE-2026-33263

A flaw was found in the Dovecot mail server's submission-login component. This vulnerability occurs when the server reaches its maximum allowed user IP connections, leading to a crash due to file descriptor handling issues. This can result in a denial of service, preventing users from sending...

CVE-2026-80688

A flaw was found in the Linux kernel, specifically within the RISC-V architecture's veccheckunalignedaccessspeedallcpus function. This function, intended for initialization, could continue running as a kernel thread after its allocated memory is released. If this occurs, the system attempts to...

CVE-2026-52681

A flaw was found in dovecot. An authenticated attacker can bypass the configured Sieve CPU limit by repeatedly changing active scripts. This action prevents proper CPU resource accounting and leaves behind compiled script files, leading to sustained CPU and increased disk consumption. The...

CVE-2026-80659

A flaw was found in the Linux kernel's vub300 driver. When the vub300cmndworkthread function holds a command mutex and a command response times out, the device reset path attempts to re-acquire the same mutex recursively. This recursive locking can lead to a deadlock, causing a Denial of Service...

CVE-2026-80703

A flaw was found in the Linux kernel's drm/amdkfd component. A local user with access to /dev/kfd could exploit a missing authorization check to terminate another process's active Graphics Processing Unit GPU debug session. This could lead to a denial of service for other users attempting to debu...

CVE-2026-80637

A flaw was found in the Linux kernel's netfilter synproxy component. This vulnerability is due to unaligned memory access when adjusting timestamp fields. An attacker could potentially trigger this flaw by sending specially crafted network traffic, leading to performance degradation or a system...

CVE-2026-73208

A flaw was found in Dovecot. This vulnerability allows an attacker to bypass authentication by exploiting how OAuth2 tokens are validated. If an OAuth2 token response does not include a scope claim, Dovecot incorrectly uses the audience claim in its place for authorization checks. This can lead t...

CVE-2026-40018

A flaw was found in Dovecot. A remote attacker with high attack complexity could exploit this vulnerability to gain access to sensitive information and modify data without requiring any user interaction or privileges. Mitigation Mitigation for this issue is either not available or the currently...

CVE-2026-80626

A flaw was found in the Linux kernel's powerpc/perf component. An issue in the fslembpmudel function can lead to a preempt count underflow. This occurs when the function attempts to decrement a preemption counter without a corresponding increment, specifically when event-hw.idx is negative. On...

CVE-2026-14672

An observable response discrepancy in PostgreSQL's SCRAM authentication permits user enumeration. Unauthenticated attackers can verify if a specific user exists by observing the authentication iteration count, provided the targeted user is configured with a non-default scramiterations value...

CVE-2026-62994

A flaw was found in CoreDNS, a DNS server. A remote attacker can trigger a denial of service by sending a specially crafted AXFR request to a CoreDNS zone. This occurs when CoreDNS is configured with k8sexternal headless-service zone transfers and Kubernetes contains a headless service endpoint...

CVE-2026-18743

A flaw was found in popt. This vulnerability allows an attacker to provide specially crafted configuration content to a host, which, when loaded, can lead to a small memory corruption issue. This occurs because of an error in how the poptConfigFileToString function reallocates memory for buffers...

CVE-2026-59903

A flaw was found in Netty, an asynchronous, event-driven network application framework. The CorsHandler component incorrectly replaces application Vary headers, such as Authorization or Cookie, with Origin. This allows a caching proxy or Content Delivery Network CDN to reuse authenticated respons...

CVE-2026-83596

A flaw was found in WebKitGTK. Processing malicious web content can cause memory corruption due to improper memory handling. Mitigation Do not process or load untrusted web content with WebKitGTK. In Red Hat Enterprise Linux 7, the following packages require WebKitGTK4: evolution-data-server,...

CVE-2026-82623

A flaw was found in open62541. A remote attacker could exploit a use-after-free vulnerability in the UADataValuebackendcopyRange function within the History Backend component. This flaw could lead to a denial of service, making the affected system unavailable. Mitigation Update open62541 to versi...

CVE-2026-78422

A flaw was found in zbuspolkit. The Subject::newforowner function incorrectly encodes the user ID UID as an unsigned 32-bit integer instead of a signed 32-bit integer when communicating with the PolicyKit polkit authorization framework. This type mismatch causes polkit to disregard the provided U...

CVE-2026-82797

A flaw was found in rlottie. This uncontrolled recursion vulnerability allows a local attacker to cause a denial of service DoS by providing specially crafted serialized data with nested payloads. Successful exploitation requires user interaction to process the malicious data. Mitigation Update...

CVE-2026-16658

A flaw was found in the community.proxmox Ansible collection's proxmoxpctremote connection plugin. The buildpctcommand method constructs a pct exec command string using unquoted string concatenation and passes it to the Proxmox host's shell via Paramiko. Shell metacharacters in the command such a...

CVE-2026-13732

A flaw was found in GDB's STABS debug format parser. The readmemberfunctions function in gdb/stabsread.c contains a linked list removal bug in the code that separates destructor and non-destructor member functions of C++ classes. The bug causes the destructor entries to remain in the main functio...

CVE-2026-66422

A flaw was found in Apache Tomcat. This improper authorization vulnerability occurs because security-role-ref definitions are incorrectly used as role aliases within the Realm, in addition to their correct usage with Request.isUserInRole. This misconfiguration allows for a bypass of declarative...

CVE-2026-73180

A flaw was found in Apache Tomcat. This vulnerability, categorized as Insufficient Session Expiration, occurs when an authenticated HTTP session's ID is modified after a WebSocket connection has been established. Under these conditions, the WebSocket session fails to terminate as expected when th...

CVE-2026-68525

A flaw was found in Apache Tomcat. This incorrect authorization vulnerability occurs within the FORM authentication process, allowing a user to bypass security constraints. This bypass enables unauthorized access to resources via a GET request, even when those resources are intended to be...

CVE-2026-65905

A flaw was found in Apache Tomcat. This vulnerability, an authentication bypass by capture-replay, affects the DIGEST authenticator. A remote attacker can exploit this by making a specially crafted DIGEST authenticated request with a nonceCount at the upper boundary of the replay window. This...

CVE-2026-68763

A flaw was found in Apache Tomcat. This vulnerability, an uncontrolled resource consumption issue, arises from an allocation leak in the HTTP/2 backlog tracking when a stream is reset. A remote attacker could exploit this to cause a Denial of Service DoS, making the server unresponsive or...

CVE-2026-68569

A flaw was found in Apache Tomcat. This improper authentication vulnerability allows a remote attacker to be authenticated even if their user account does not exist in the DataSourceRealm, under specific circumstances such as CLIENT-CERT or SPNEGO authentication. This can lead to unauthorized...

CVE-2026-62299

A flaw was found in CoreDNS, a DNS server. A remote, unauthenticated client can exploit this vulnerability by sending a specially crafted DNS query that triggers a null pointer dereference in the rewrite plugin's EDNS0 response handling. This can lead to a denial of service DoS where the CoreDNS...

CVE-2026-65927

A flaw was found in Apache Tomcat. An off-by-one error in the RewriteValve's N flag processing causes rewrite rules to restart at the second rule instead of the first. This vulnerability may allow an attacker to bypass intended access controls. Mitigation Mitigation for this issue is either not...

CVE-2026-80641

A flaw was found in the Linux kernel's wlcore Wi-Fi driver. An incorrect firmware version check for Integrity Group Temporal Key IGTK causes the number of available ciphers to continuously decrease on systems using older firmware, particularly affecting wl12xx chips. This issue leads to repeated...

CVE-2026-65183

A flaw was found in Apache Tomcat. A Time-of-check Time-of-use TOCTOU race condition exists when creating Unix domain sockets. This vulnerability allows an unauthorized local user to exploit the timing window to gain access to the Unix domain socket. This could lead to information disclosure or...

CVE-2026-50572

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's HTTP external-authorization client can retain a stale request callback after a request is rejected. When RawHttpClientImpl::onSuccess later processes the...

CVE-2026-48521

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's ProdClusterManagerFactory::allocateConnPool dereferences transportsocketoptions while selecting an HTTP/3 connection pool without first checking whether the...

CVE-2026-65182

A flaw was found in Apache Tomcat. This improper access control and incorrect authorization vulnerability allows an attacker to bypass security constraints. This occurs when a security constraint for a longer path is specified before a more restrictive constraint for a shorter sub-path, potential...

CVE-2026-62309

A flaw was found in CoreDNS. A remote attacker can send a specially crafted 28-byte UDP datagram to a CoreDNS server with the proxyproto plugin enabled. This malformed datagram can cause the CoreDNS process to crash, leading to a denial of service DoS. The vulnerability arises from improper...

CVE-2026-27852

A flaw was found in dovecot. A remote attacker can craft a malicious email with an excessive number of email addresses or MIME parameters in its headers. When a user attempts to read this message over IMAP, the parsing process consumes an inordinate amount of memory, leading to the termination of...

CVE-2026-80692

A flaw was found in the Bluetooth hcisync component of the Linux kernel. This vulnerability, a Use-After-Free UAF, could allow a local attacker to potentially cause a system crash or execute unauthorized code. This occurs if a connection object is released from memory while the hcisync task is...

CVE-2026-80651

A flaw was found in the Linux kernel's crypto: ccp/sev-dev-tsm module. The dsmcreate function fails to properly validate the pdev-bus pointer, leading to a null pointer dereference. A local attacker could exploit this vulnerability to trigger a kernel crash, resulting in a Denial of Service DoS...

CVE-2026-80615

A flaw was found in the Linux kernel's dstmetadata component. When copying tunnel information and options within the tundstunclone function, a compiler warning for a potential memory buffer overflow is triggered. This warning is a false positive, as memory is correctly allocated, but it can lead ...

CVE-2026-73551

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's URL normalization does not recognize dot and dotdot path segments when they carry semicolon parameters. A request such as /user/..;foo=bar/admin is therefor...

CVE-2026-73549

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's Utility::copyInternetAddressAndPort and QUIC client-address paths reconstruct scoped IPv6 addresses through addressAsString and Ipv6Instance. The string...

CVE-2026-73511

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy normally matches the raw request path, while servlet backends such as Apache Tomcat strip semicolon matrix parameters from each path segment before resolving...

CVE-2026-65637

A flaw was found in Apache Tomcat. This improper input validation vulnerability, stemming from an incomplete fix for CVE-2026-32990, allows for an HTTP/2 no-authority bypass of strict Server Name Indication SNI validation. This could potentially lead to unauthorized access or misrouting of...