Incus
Monthly
Path traversal in Incus system container manager allows authenticated remote attackers to write arbitrary files as root on the host via malformed systemd credential configuration keys. Affecting all versions before 6.23.0, this enables both privilege escalation from container to host and denial of service through critical file overwrites. EPSS score of 0.06% (18th percentile) indicates low observed exploitation probability, with no public exploit identified at time of analysis. The CVSS 9.9 Critical rating reflects the severe impact of container escape, though the PR:L requirement and lack of active exploitation temper immediate urgency.
Authentication bypass in Incus webui (versions prior to 6.23.0) permits local or remote attackers to gain unauthorized access to the system container and virtual machine manager via an improperly validated authentication token. The vulnerability allows attackers who can reach the temporary localhost web server to escalate privileges to the level of the user running 'incus webui', enabling control over containers, virtual machines, and potentially underlying system resources. CVSS score of 8.8 (High) reflects network attack vector with low complexity requiring user interaction; no public exploit identified at time of analysis.
Incus system container and virtual machine manager versions prior to 6.23.0 allow authenticated users with instance access to read and write arbitrary files as root on the host system through exploitation of pongo2 template processing. The vulnerability (scored CVSS 10.0 critical) stems from a bypassed chroot isolation mechanism that was intended to confine template operations to instance filesystems but instead permits unrestricted host filesystem access. No public exploit identified at time of analysis, though the vulnerability is tagged as Server-Side Template Injection (SSTI) with a GitHub security advisory published.
Incus is a system container and virtual machine manager. [CVSS 8.7 HIGH]
Incus contains a vulnerability that allows attackers to adding arbitrary lifecycle hooks, ultimately resulting in arbitrary command exec (CVSS 8.7).
Denial of service in Incus prior to version 6.23.0 allows authenticated users with storage bucket access to crash the Incus daemon via specially crafted storage bucket backups, enabling repeated attacks to render the control plane API unavailable while leaving running workloads unaffected. The vulnerability requires local or remote authentication to the Incus system and has a CVSS score of 6.5 (medium severity) with high availability impact. Vendor-released patch available in version 6.23.0.
Incus versions prior to 6.23.0 allow local authenticated attackers to manipulate temporary screenshot files via predictable /tmp paths and symlink attacks, potentially truncating and altering permissions of arbitrary files on systems with disabled symlink protection (rare), leading to denial of service or local privilege escalation. The vulnerability requires local access and authenticated user privileges but is particularly dangerous on systems without kernel-level symlink protections enabled. An exploit proof-of-concept exists, and the vendor has released patched version 6.23.0 to address the issue.
Incus versions prior to 6.23.0 fail to validate image fingerprints when downloading from simplestreams servers, enabling attackers with local privileges to poison the image cache and potentially cause other tenants to execute attacker-controlled container or virtual machine images instead of legitimate ones. The vulnerability requires local authentication and specific conditions but carries high integrity impact in multi-tenant environments; no active exploitation has been confirmed.
Incus is a system container and virtual machine manager. Rated high severity (CVSS 8.6), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Path traversal in Incus system container manager allows authenticated remote attackers to write arbitrary files as root on the host via malformed systemd credential configuration keys. Affecting all versions before 6.23.0, this enables both privilege escalation from container to host and denial of service through critical file overwrites. EPSS score of 0.06% (18th percentile) indicates low observed exploitation probability, with no public exploit identified at time of analysis. The CVSS 9.9 Critical rating reflects the severe impact of container escape, though the PR:L requirement and lack of active exploitation temper immediate urgency.
Authentication bypass in Incus webui (versions prior to 6.23.0) permits local or remote attackers to gain unauthorized access to the system container and virtual machine manager via an improperly validated authentication token. The vulnerability allows attackers who can reach the temporary localhost web server to escalate privileges to the level of the user running 'incus webui', enabling control over containers, virtual machines, and potentially underlying system resources. CVSS score of 8.8 (High) reflects network attack vector with low complexity requiring user interaction; no public exploit identified at time of analysis.
Incus system container and virtual machine manager versions prior to 6.23.0 allow authenticated users with instance access to read and write arbitrary files as root on the host system through exploitation of pongo2 template processing. The vulnerability (scored CVSS 10.0 critical) stems from a bypassed chroot isolation mechanism that was intended to confine template operations to instance filesystems but instead permits unrestricted host filesystem access. No public exploit identified at time of analysis, though the vulnerability is tagged as Server-Side Template Injection (SSTI) with a GitHub security advisory published.
Incus is a system container and virtual machine manager. [CVSS 8.7 HIGH]
Incus contains a vulnerability that allows attackers to adding arbitrary lifecycle hooks, ultimately resulting in arbitrary command exec (CVSS 8.7).
Denial of service in Incus prior to version 6.23.0 allows authenticated users with storage bucket access to crash the Incus daemon via specially crafted storage bucket backups, enabling repeated attacks to render the control plane API unavailable while leaving running workloads unaffected. The vulnerability requires local or remote authentication to the Incus system and has a CVSS score of 6.5 (medium severity) with high availability impact. Vendor-released patch available in version 6.23.0.
Incus versions prior to 6.23.0 allow local authenticated attackers to manipulate temporary screenshot files via predictable /tmp paths and symlink attacks, potentially truncating and altering permissions of arbitrary files on systems with disabled symlink protection (rare), leading to denial of service or local privilege escalation. The vulnerability requires local access and authenticated user privileges but is particularly dangerous on systems without kernel-level symlink protections enabled. An exploit proof-of-concept exists, and the vendor has released patched version 6.23.0 to address the issue.
Incus versions prior to 6.23.0 fail to validate image fingerprints when downloading from simplestreams servers, enabling attackers with local privileges to poison the image cache and potentially cause other tenants to execute attacker-controlled container or virtual machine images instead of legitimate ones. The vulnerability requires local authentication and specific conditions but carries high integrity impact in multi-tenant environments; no active exploitation has been confirmed.
Incus is a system container and virtual machine manager. Rated high severity (CVSS 8.6), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.