https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-09-29T17:13:35.626723+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2024-5300 CVE-2024-5300 — AppArmor Base Profile Misconfiguration in snapd Permits Confined Snaps Unauthorized Access to Hashed Passwords via syst… 2026-09-29T17:13:35.923844+00:00

Affected: snapd, Canonical Ubuntu 26.04 LTS, Canonical Ubuntu 24.04 LTS, Canonical Ubuntu 22.04 LTS, Canonical Ubuntu 20.04 LTS, Canonical Ubuntu 18.04 LTS, Canonical Ubuntu 16.04 LTS

An access control bypass and information disclosure vulnerability exists in the base AppArmor security profile configuration of Canonical snapd. The abstraction rules located in /etc/apparmor.d/abstractions/nss-systemd (inherited via ) inadvertently permit strictly confined snap applications, which lack the privileged account-control interface, to interact directly with the io.systemd.Multiplexer and io.systemd.NameServiceSwitch UNIX domain sockets under /run/systemd/userdb/. On systems where the systemd-userdbd service is installed and operational, the service fails to distinguish between an unconfined root user on the host system and a restricted root user running within a snap application's sandbox (such as a daemon or configuration hook). Because systemd-userdbd returns "complete" user records—including sensitive hashed user passwords from /etc/shadow—when queried by a process running as root, a compromised or malicious strictly confined snap executing code as root can successfully query the Varlink interface to retrieve all system password hashes, bypassing intended snap sandbox restrictions. This issue is mitigated by the fact that systemd-userdbd is not installed by default on standard Ubuntu deployments.

 https://vulnerability.circl.lu/vuln/usn-8579-1 USN-8579-1 — snapd vulnerabilities 2026-09-29T17:13:35.923990+00:00

Affected: Ubuntu:Pro:16.04:LTS: snapd, Ubuntu:Pro:18.04:LTS: snapd, Ubuntu:Pro:20.04:LTS: snapd, Ubuntu:22.04:LTS: snapd, Ubuntu:24.04:LTS: snapd, Ubuntu:26.04:LTS: snapd

James Henstridge discovered that snapd's default apparmor template did not restrict access to systemd-userdbd varlink interface. A local attacker could possibly use this issue to obtain sensitive information. (CVE-2024-5300)

Qualys discovered that snap-confine can be tricked to create attacker-controlled files at certain privileged locations. A local attacker could possibly use this issue to bypass intended restrictions and escalate privileges to root. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-8933)

Zygmunt Krynicki discovered that snapd's default seccomp template did not restrict the creation of executables with the set-user-ID attribute. A local attacker could possibly use this issue to create and execute setuid binaries. (CVE-2026-15226)