CVE-2026-45848
MediumCVSS 5.5Exploitation Probability (EPSS)
Low risk6th percentile - higher than 6% of all known CVEs
Summary
In the Linux kernel, a vulnerability was found in the AppArmor module where the aa_sock_file_perm function does not check for NULL pointers for sock and sock->sk. This can lead to a NULL pointer dereference (oops) during socket setup or teardown, especially for af_unix sockets.
Risk Assessment
An attacker could exploit this vulnerability to cause a system crash (oops), leading to a denial of service (DoS) for processes using network sockets.
Recommendation
Immediately update the Linux kernel to a version containing the fix that adds NULL pointer checks for sock and sock->sk in the aa_sock_file_perm function.
Related vulnerabilities
- CVE-2026-108860Critical
BotSharp through 5.2.0 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to forge bearer tokens using the hard-coded Jwt:Key in WebStarter appsettings.json. Attackers can sign tokens with the committed HMAC secret and fixed botsharp issuer and audience to impersonate any known user, including administrators, on Authorize-protected API routes.
- CVE-2026-108753Critical
Agnaistic agnai through 1.0.555 contains a hard-coded credentials vulnerability in self-host.docker-compose.yml, which sets a fixed admin password and public JWT secret. Unauthenticated attackers can log in as admin or sign their own JWT with admin: true to impersonate users, reset passwords, and change server configuration.
- CVE-2026-108576Critical
A vulnerability was found in TOZED X300 up to 6.01.3. This vulnerability affects the function process_ping of the component IPPingDiagnostics Handler. The manipulation of the argument Host results in os command injection. The attack can be launched remotely. The vendor was contacted early about this disclosure but did not respond in any way.
- CVE-2026-86717Critical
The Insurify WordPress plugin through 1.0 does not have authorisation and nonce checks on one of its AJAX actions, allowing unauthenticated users to delete arbitrary WordPress options, which can take the site offline and strip every user of their role.
- CVE-2026-86706Critical
The Quick quotes WordPress plugin through 1.0.0 does not perform any capability or nonce check on one of its AJAX actions and lets the caller choose which option is written, allowing unauthenticated users to alter arbitrary site settings and to make the site unavailable.
- CVE-2026-85121Critical
The Insurify WordPress plugin through 1.0 does not have authorisation and nonce checks on one of its AJAX actions, allowing unauthenticated users to create and overwrite arbitrary WordPress options with request data, which can take the site offline and deactivate all of its Insurify WordPress plugin through 1.0.
- CVE-2026-85118Critical
The AI Content Generator Marketing WordPress plugin through 1.0.0 does not enforce a nonce or capability check on some of its AJAX actions, allowing unauthenticated users to update and delete arbitrary WordPress options, which can be used to gain administrator access to the site.
- CVE-2026-84737Critical
The Freeton WP WordPress plugin through 1.0.0 does not correctly validate the activation code when authenticating a user, allowing unauthenticated attackers to log in as any user whose email address they know, including administrators.
- CVE-2026-84734Critical
The Mindstien Quick Login WordPress plugin through 1.0 does not correctly validate a value supplied in the request against the visitor's own session before authenticating them, allowing unauthenticated attackers to obtain a session as the administrator account the Mindstien Quick Login WordPress plugin through 1.0 is configured with.
- CVE-2026-84254Critical
The click5 CRM add-on to Contact Form 7 WordPress plugin through 1.0.4 does not have authorisation and CSRF checks when updating options via a REST endpoint, and does not ensure that the option to be updated belongs to the click5 CRM add-on to Contact Form 7 WordPress plugin through 1.0.4. As a result, unauthenticated attackers could change arbitrary blog options, allowing them to create a new administrator account and take over the site.
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: apparmor: fix NULL sock in aa_sock_file_perm Deal with the potential that sock and sock-sk can be NULL during socket setup or teardown. This could lead to an oops. The fix for NULL pointer dereference in __unix_needs_revalidation shows this is at least possible for af_unix sockets. While the fix for af_unix sockets applies for newer mediation this is still the fall back path for older af_unix mediation and other sockets, so ensure it is covered.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS