Smart search ranks by meaning as well as keywords (one row per story, last 45 days).
Ubuntu issues USN-8742-1 fixing a Netty DNS cache poisoning flaw caused by improper NS record bailiwick validation.
Ubuntu Security Notice USN-8742-1 addresses a vulnerability in the Netty framework in which NS records are incorrectly validated for bailiwick. An attacker could potentially exploit this to facilitate DNS cache poisoning attacks. Updated packages are available for supported Ubuntu releases.
Ubuntu issued USN-8730-1 fixing Linux kernel flaws in IPv6 networking and Netfilter that could allow system compromise.
Ubuntu released USN-8730-1 addressing a security issue discovered in the Linux kernel. The update corrects flaws in the IPv6 networking and Netfilter subsystems. Ubuntu states an attacker could possibly use the issue to compromise the system.
Ubuntu patches multiple Linux kernel (Azure) flaws across ARM64, Bluetooth, Netfilter, NTFS3, SMB and other subsystems.
Ubuntu security notice USN-8761-1 corrects several security issues in the Linux kernel for Azure, spanning ARM32, ARM64, and PowerPC architectures plus subsystems including Bluetooth, Netfilter, EFI core, GPU drivers, InfiniBand, SCSI, NTFS3, and SMB. An attacker could possibly use these flaws to compromise the system.
Ubuntu released USN-8735-1 fixing an HSQLDB flaw that lets specially crafted database files overwrite arbitrary files.
Ubuntu Security Notice USN-8735-1 addresses a vulnerability in HSQLDB, which incorrectly handled specially crafted database files. An attacker could exploit the flaw to overwrite arbitrary files on affected systems; updated packages are available.
Ubuntu issued USN-8740-1 fixing two .NET watch flaws, CVE-2026-58649 and CVE-2026-69806, enabling information exposure and privilege escalation.
Ubuntu Security Notice USN-8740-1 addresses two vulnerabilities in .NET watch components. CVE-2026-58649 involves missing cross-origin WebSocket validation in BrowserRefreshServer that could expose sensitive information. CVE-2026-69806 involves improper information exposure through AspireServerService arguments, potentially allowing privilege elevation and arbitrary code execution.
Ubuntu issued USN-8731-1 fixing a MiniUPnPd integer underflow allowing remote DoS or information disclosure via malformed SOAPAction headers.
Ubuntu released USN-8731-1 to address an integer underflow vulnerability in MiniUPnPd's SOAPAction header parsing. A remote attacker could send a malformed SOAPAction header containing a single quote to trigger a denial of service or information disclosure. MiniUPnPd is a lightweight UPnP daemon widely deployed on routers and gateways.
Ubuntu warns polkit mishandles cookie input, letting a local attacker crash the daemon or possibly execute arbitrary code.
Ubuntu Security Notice USN-8762-1 addresses a vulnerability in polkit stemming from incorrect handling of cookie input. A local attacker could exploit the flaw to cause polkit to crash, producing a denial of service, or potentially execute arbitrary code. The notice indicates exploitation requires local access to the affected system.
Ubuntu released USN-8748-1 patching multiple Linux kernel (NVIDIA) vulnerabilities across networking, file system, and crypto subsystems.
Ubuntu issued security notice USN-8748-1 fixing several Linux kernel vulnerabilities affecting the NVIDIA Tegra memory controller driver, hardware crypto device drivers, and network drivers, among others. Affected subsystems include GFS2, OCFS2, and SMB file systems, B.A.T.M.A.N. meshing, Ceph, Netfilter, Open vSwitch, IPv4/IPv6, RxRPC, SCTP, and TIPC. An attacker could potentially exploit these flaws to compromise the system.
Ubuntu issued USN-8732-1 fixing a Minetest LuaJIT sandbox escape that let malicious mods execute arbitrary code on servers.
Ubuntu Security Notice USN-8732-1 addresses a flaw in Minetest where the Lua sandbox environment was not properly sanitized when using LuaJIT. A malicious mod could escape the sandbox, execute arbitrary code, and gain full file system access on the server. Administrators should update to the patched packages.
Ubuntu USN-8772-1 patches four libaom flaws (CVE-2026-56208 to CVE-2026-56211) that could cause heap overflow, arbitrary memory writes, or code execution.
Ubuntu Security Notice USN-8772-1 fixes a heap buffer overflow in libaom's first-pass statistics buffer handling in Look-Ahead Processing mode (CVE-2026-56208), potentially causing denial of service or arbitrary code execution. Three additional flaws in spatial and temporal layer ID validation in the SVC encoder controls (CVE-2026-56209, CVE-2026-56210, CVE-2026-56211) allow arbitrary memory writes, out-of-bounds heap reads, or code execution. Users should apply the updated packages.
Ubuntu patches Yelp help viewer flaw allowing crafted help documents to execute arbitrary scripts and expose sensitive user information.
USN-8756-1 fixes a vulnerability in Yelp, Ubuntu's help viewer, where help documents could execute arbitrary scripts. An attacker could trick a user into opening a specially crafted help document to obtain sensitive information. Ubuntu has released updated packages.
Ubuntu issued USN-8734-1 fixing three PHP denial-of-service flaws in SOAP, metaphone() and phar handling, including CVE-2026-7262 and CVE-2026-7568.
Ubuntu security notice USN-8734-1 addresses multiple PHP vulnerabilities. CVE-2026-7262 is a NULL pointer dereference in Apache map decoding in SOAP servers with a typemap configured; CVE-2026-7568 is a signed integer overflow in metaphone() causing an out-of-bounds read; and CVE-2026-7260 involves unbounded recursion from circular symbolic links in phar archives. All issues could allow remote attackers to cause denial-of-service conditions.
Ubuntu patches Snapcast mishandling of crafted JSON-RPC requests enabling remote code execution and data exposure.
Ubuntu security notice USN-8767-1 addresses a vulnerability in Snapcast, a multiroom audio streaming server. The software incorrectly handled crafted JSON-RPC requests, which could allow a remote attacker to execute arbitrary code or obtain sensitive information. Users are advised to update the snapcast package.
Ubuntu USN-8749-1 patches CivetWeb URI and HTTP request parsing flaws enabling remote DoS or possible code execution.
Ubuntu Security Notice USN-8749-1 addresses two CivetWeb vulnerabilities. CVE-2025-55763 involves incorrect URI parsing that could allow a remote attacker to cause denial of service or execute arbitrary code, affecting Ubuntu 22.04 LTS and 24.04 LTS. CVE-2025-9648 involves incorrect HTTP request parsing enabling remote denial of service.
Ubuntu patches SimpleSAMLphp signature validation and XXE flaws enabling user impersonation, privilege escalation, and information disclosure.
Ubuntu security notice USN-8770-1 fixes multiple SimpleSAMLphp vulnerabilities. CVE-2019-3465 stems from incorrect cryptographic signature validation in XML messages, allowing an authenticated attacker to impersonate users or gain elevated privileges; it only affected Ubuntu 16.04 LTS and 18.04 LTS. CVE-2024-52596 involves improper handling of external entities when parsing untrusted XML, allowing a remote attacker to obtain sensitive information, and did not affect Ubuntu 24.04 LTS. An additional flaw in signature verification for SAML messages using the HTTP-Redirect binding is also addressed.
Ubuntu fixes two SRT flaws allowing encrypted connection downgrade with content injection and remote crash.
Ubuntu Security Notice USN-8764-1 patches two vulnerabilities in the SRT streaming protocol. CVE-2026-55868 stems from unauthenticated encryption control messages, letting a remote attacker downgrade an encrypted connection to inject content or interrupt media streams. CVE-2026-55869 involves improper validation of control packets during connection setup and key refresh, enabling a remote denial of service.
Ubuntu issued USN-8736-1 fixing two Perl regex flaws that could cause denial of service, code execution, or security-restriction bypass.
Ubuntu released a security notice addressing two Perl vulnerabilities in regular expression handling. CVE-2026-15534 involves mishandling of large inputs during regex matching, enabling out-of-bounds heap reads or writes that could lead to denial of service or arbitrary code execution. CVE-2026-19487 involves incorrect matching for regexes with alternative branches, allowing security restrictions to be bypassed. Users are advised to apply the updated packages.
Ubuntu patches Freeciv stack overflow where remote attackers crash clients or servers using crafted network packets.
USN-8754-1 fixes a Freeciv vulnerability where certain network packets trigger a stack overflow. A remote attacker could use this to crash Freeciv clients or servers, resulting in denial of service. Ubuntu released updated packages.