USN-8044-2: alsa-lib vulnerability

USN-8044-1 fixed a vulnerability in alsa-lib. This update provides the corresponding fix for alsa-lib on Ubuntu 20.04 LTS. Original advisory details: It was discovered that alsa-lib incorrectly handled the topology mixer control decoder. A local attacker could use a specially crafted topology fil...

USN-8410-1: shell-quote vulnerability

Akshat Sinha discovered that shell-quote improperly validated object-token inputs. An attacker could possibly use this issue to cause shell-quote to crash, resulting in a denial of service, or execute arbitrary code...

USN-8408-1: Twig vulnerability

It was discovered that Twig did not properly validate PHP callables when using a source policy. An authenticated user could possibly use this issue to execute arbitrary code...

USN-8407-1: strongSwan vulnerability

Elliott Childre discovered that strongSwan incorrectly handled the cloning of certain identities. A remote attacker could use this issue to cause strongSwan to crash, resulting in a denial of service, or possibly execute arbitrary code...

USN-8349-2: rsync regression

USN-8349-1 fixed vulnerabilities in rsync. The update introduced multiple regressions in rsync functionality. This update fixes the problem. Original advisory details: Calum Hutton discovered that rsync contained a heap-based out-of-bounds read when handling file transfers. A remote attacker with...

USN-8406-1: Net::CIDR::Lite vulnerabilities

Dave Rolsky discovered that Net::CIDR::Lite did not properly handle extraneous zero characters at the beginning of an IP address string. A remote attacker could possibly use this issue to bypass access controls that are based on IP addresses. This issue only affected Ubuntu 16.04 LTS and Ubuntu...

USN-8405-1: CUPS vulnerabilities

Ariel Silver discovered that CUPS incorrectly handled username comparisons during authorization checks. A local attacker could possibly use this issue to gain unauthorized access to restricted operations. CVE-2026-27447 Asim Viladi Oglu Manizada discovered that CUPS incorrectly handled...

USN-8404-1: Transmission vulnerability

It was discovered that Transmission had a clickjacking weakness in the browser-facing WebUI and RPC response paths. An attacker could possibly use this issue to trick users into performing unintended actions...

USN-8403-1: Kea DHCP vulnerability

Ali Norouzi discovered that Kea DHCP did not properly handle maliciously crafted messages over configured API sockets and HA listeners. A remote attacker could possibly use this issue to cause Kea DHCP to crash, resulting in a denial of service...

USN-8401-1: Netty vulnerabilities

It was discovered that Netty's HTTP proxy handler did not properly validate headers when constructing CONNECT requests. An attacker could possibly use this issue to inject arbitrary HTTP headers into CONNECT requests. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS,...

USN-8402-1: systemd vulnerabilities

It was discovered that systemd-nspawn incorrectly handled certain optional configuration files. A local attacker could possibly use this issue to escape to the host system and execute arbitrary code. CVE-2026-40226 It was discovered that systemd-resolved incorrectly validated DNSSEC records for...

USN-8400-1: poppler vulnerability

It was discovered that poppler incorrectly handled certain malformed PDF tiling patterns in the Splash backend. An attacker could possibly use this issue to execute arbitrary code, obtain sensitive information, or cause a denial of service...

USN-8399-1: Pillow vulnerabilities

It was discovered that Pillow incorrectly handled large glyph advance values in fonts. An attacker could possibly use this issue to cause Pillow to crash, resulting in a denial of service. CVE-2026-42308 It was discovered that Pillow incorrectly handled nested coordinate lists in certain APIs. An...

USN-8398-1: nginx vulnerability

It was discovered that nginx incorrectly handled certain cookie headers in the HTTP/2 implementation. A remote attacker could possibly use this issue to cause nginx to consume excessive resources, resulting in a denial of service...

USN-8397-1: libjxl vulnerability

It was discovered that libjxl did not properly handle certain crafted PBM images. An attacker could possibly use this issue to cause libjxl to crash, resulting in a denial of service, or execute arbitrary code...

USN-8395-1: Netatalk vulnerabilities

Arjun Basnet discovered that Netatalk incorrectly sanitized user input in its MySQL CNID backend. A remote authenticated attacker could possibly use this issue to conduct SQL injection attacks. CVE-2026-44047 Arjun Basnet discovered that Netatalk incorrectly handled UCS-2 character set conversion...

USN-8396-1: Apache HTTP Server vulnerabilities

It was discovered that the Apache HTTP Server modrewrite module incorrectly handled certain privileges. A local attacker could possibly use this issue to obtain sensitive information. CVE-2026-24072 Andrew Lacambra, Elhanan Haenel, Tianshuo Han, and Tristan Madani discovered that the Apache HTTP...

USN-8394-1: YARD vulnerability

It was discovered that YARD incorrectly sanitized paths in its built-in documentation server. An attacker could possibly use this issue to read arbitrary files from the server host...

USN-8387-1: Inetutils vulnerabilities

It was discovered that the Inetutils telnet daemon incorrectly handled the CREDENTIALSDIRECTORY environment variable. An attacker could possibly use this issue to escalate privileges. CVE-2026-28372 It was discovered that the Inetutils telnet daemon did not properly validate buffer bounds when...

USN-8393-1: Linux kernel (Azure FIPS) vulnerabilities

It was discovered that the Linux kernel algifaead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. CVE-2026-31431 It was discovered that the Linux kernel did n...

USN-8361-2: Linux kernel (FIPS) vulnerability

A security issue was discovered in the Linux kernel. An attacker could possibly use this to compromise the system. This update corrects flaws in the following subsystem: - Packet sockets; CVE-2026-31504...

USN-8392-1: Linux kernel vulnerabilities

It was discovered that the Linux kernel algifaead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. CVE-2026-31431 It was discovered that the Linux kernel did n...

USN-8391-1: Linux kernel (Raspberry Pi) vulnerabilities

It was discovered that the Linux kernel algifaead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. CVE-2026-31431 It was discovered that the Linux kernel did n...

USN-8390-1: Linux kernel vulnerability

It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the RxRPC networking subsystem when processing paged fragments. A local attacker...

USN-8389-1: Linux kernel vulnerabilities

It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the RxRPC networking subsystem when processing paged fragments. A local attacker...

USN-8388-1: Linux kernel vulnerabilities

It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the RxRPC networking subsystem when processing paged fragments. A local attacker...

USN-8386-1: Nano vulnerabilities

Michał Majchrowicz and Marcin Wyczechowski discovered that Nano created the /.local directory with incorrect permissions. In environments with permissive umask settings, a local attacker could possibly use this issue to inject a malicious launcher file, resulting in information disclosure or othe...

USN-8385-1: Robocode vulnerabilities

It was discovered that Robocode could be tricked into making network requests to attacker-controlled systems. An attacker could possibly use this issue to cause external service interaction, resulting in information disclosure. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS...

USN-8383-1: Tomcat vulnerabilities

It was discovered that Tomcat incorrectly handled digest authentication. A remote attacker could possibly use this issue to bypass authentication restrictions. CVE-2026-43512 It was discovered that Tomcat incorrectly handled case sensitivity in LockOutRealm. A remote attacker could possibly use...

USN-8384-1: Apache HTTP Server vulnerability

It was discovered that Apache HTTP Server incorrectly handled certain cookie headers in the HTTP/2 implementation. A remote attacker could possibly use this issue to cause Apache HTTP Server to consume excessive resources, resulting in a denial of service...

USN-8253-2: Postfix vulnerability

USN-8253-1 fixed a vulnerability in Postfix. This update provides the corresponding fix for Postfix on Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. Original advisory details: Kamil Frankowicz discovered that Postfix incorrectly handled certain enhanced status codes....

USN-8382-1: Exim vulnerabilities

Timo Longin discovered that Exim incorrectly handled certain SMTP messages in PIPELINING/CHUNKING configurations. A remote attacker could possibly use this issue to perform SMTP smuggling. This issue only affected Ubuntu 14.04 LTS. CVE-2023-51766 It was discovered that Exim incorrectly handled...

USN-8380-1: Twisted vulnerability

It was discovered that Twisted incorrectly handled DNS name decompression. A remote attacker could possibly use this issue to cause Twisted to consume excessive resources, leading to a denial of service...

USN-8379-1: urllib3 vulnerabilities

It was discovered that urllib3 incorrectly handled cross-origin redirects in ProxyManager. A remote attacker could possibly use this issue to obtain sensitive information. CVE-2026-44431 It was discovered that urllib3 incorrectly handled decompression of specially crafted responses. A remote...

USN-8378-1: libwww-perl vulnerability

It was discovered that libwww-perl incorrectly handled redirects. A remote attacker could possibly use this issue to obtain sensitive information by causing Authorization headers to be sent to a different host...

USN-8377-1: Template-Toolkit vulnerability

It was discovered that Template-Toolkit did not properly escape single quotes in the htmlfilter function of Template::Plugin::HTML. An attacker could possibly use this issue to inject arbitrary HTML and JavaScript into generated output...

USN-8376-1: FRR vulnerabilities

It was discovered that FRR incorrectly handled certain OSPF Traffic Engineering and Segment Routing TLVs. An attacker could possibly use this issue to cause FRR to crash, resulting in a denial of service. CVE-2026-28532 It was discovered that FRR incorrectly handled certain BGP FlowSpec component...

USN-8344-3: pip vulnerability

USN-8344-1 introduced a regression in pip. This update provides a complete fix for this issue.. We apologize for the inconvenience. Original advisory details: It was discovered that pip's bundled urllib3 library improperly handled streaming decompression of highly compressed data. A remote attack...

USN-8363-2: MySQL vulnerabilities

USN-8363-1 fixed several vulnerabilities in MySQL. This update provides the corresponding fixes for MySQL on Ubuntu 20.04 LTS. Original advisory details: Multiple security issues were discovered in MySQL and this update includes new upstream MySQL versions to fix these issues. MySQL has been...

USN-8375-1: nginx vulnerabilities

It was discovered that the nginx ngxmailsmtpmodule module incorrectly handled certain memory operations when doing SMTP authentication. This could possibly result in sensitive information being sent to the authentication server. CVE-2025-53859 It was discovered that nginx incorrectly handled...

USN-8348-1: GoBGP vulnerabilities

It was discovered that GoBGP incorrectly handled certain specially crafted BGP UPDATE messages. A remote attacker could possibly use this issue to cause GoBGP to crash, resulting in a denial of service. CVE-2026-37461 Yanlei Wang discovered that GoBGP incorrectly handled certain malformed BGP...

USN-8282-2: Unbound vulnerabilities

USN-8282-1 fixed vulnerabilities in Unbound. This update provides the corresponding updates for CVE-2026-41292 in Ubuntu 18.04 LTS and Ubuntu 20.04 LTS and CVE-2026-42959, CVE-2026-42960 in Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. Original advisory details: Andr...

USN-8374-1: Linux kernel vulnerabilities

It was discovered that the Linux kernel algifaead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. CVE-2026-31431 It was discovered that the Linux kernel did n...

USN-8373-1: Linux kernel vulnerabilities

It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the RxRPC networking subsystem when processing paged fragments. A local attacker...

USN-8372-1: age vulnerability

It was discovered that age did not properly validate plugin names. An attacker could possibly use this issue to cause execution of an arbitrary program by supplying a crafted recipient or identity string...

USN-8371-1: Linux kernel vulnerabilities

It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the RxRPC networking subsystem when processing paged fragments. A local attacker...

USN-8238-2: EditorConfig vulnerability

USN-8238-1 fixed a vulnerability in EditorConfig. This update contains the corresponding fix for Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. Original advisory details: It was discovered that EditorConfig incorrectly handled specially crafted configuration files. A...

USN-8370-1: Linux kernel vulnerabilities

It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the RxRPC networking subsystem when processing paged fragments. A local attacker...

USN-8369-1: Apache Tomcat Connectors vulnerability

It was discovered that Apache Tomcat Connectors used incorrect default permissions for shared memory on Unix-like systems. A local attacker could possibly use this issue to view or modify modjk configuration data in shared memory, resulting in sensitive information exposure or a denial of service...

USN-8368-1: libeconf vulnerability

It was discovered that libeconf did not properly check the size of input when copying data to a buffer. An attacker could possibly use this issue to cause libeconf to crash, resulting in a denial of service...