CVE-2026-12249Critical· 9.0▾ MidnightCanonical ADSys Uses a Less Trusted Source
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 49.5 · likelihood 0 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Exploit-prediction probability, daily snapshots since Sep 21.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
0.1%
An issue was discovered in Canonical ADSys upstream versions through v0.16.2. During Active Directory Certificate Services (AD CS) certificate auto-enrollment via the vendored Samba client script (internal/policies/certificate/python/vendor_samba/gp/gp_cert_auto_enroll_ext.py), ADSys utilizes a plaintext HTTP connection (http://) instead of a secure HTTPS connection (https://) to request the CA certificate from the Active Directory Certificate Services server (GetCACert). An unauthenticated network attacker positioned between the managed Ubuntu host and the configured AD CS CA hostname can conduct a Man-in-the-Middle (MITM) attack. By intercepting the plaintext HTTP request, the attacker can supply an arbitrary, attacker-controlled Root CA certificate. Because the system automatically accepts this certificate and registers it into the local system trust store via update-ca-certificates, this results in system-wide trust store poisoning. Consequently, TLS clients utilizing the operating system trust store on the affected machine will accept rogue certificates for arbitrary domains, enabling persistent decryption and interception of subsequent TLS connections. This issue is resolved in version v0.16.3.
github.com/ubuntu/adsys < 0.16.3-0.20250318112551-8b1939f96d38Upgrade to a patched release:
github.com/ubuntu/adsys 0.16.3-0.20250318112551-8b1939f96d38Connected by shared product, vendor, weakness, or advisory.
CVE-2026-61682Critical· 9.9kcp is a Kubernetes-like control plane for form-factors and use-cases beyond Kubernetes and container workloads
CVE-2026-62987Medium· 5.8Fabio is an HTTP(S) and TCP router for deploying applications managed by consul
CVE-2026-6862Medium· 5.5A flaw was found in libefiboot, a component of efivar
CVE-2026-61589Medium· 6.3djust provides Phoenix LiveView-style reactive server-side rendering for Django with Rust-powered performance
CVE-2026-3497Low· 2.7Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions
GHSA-rjr7-jggh-pgcpHighchi's RealIP Middleware allows IP spoofing via unvalidated X-Forwarded-For header