GHSA-4GGG-H7PH-26QR n8n-mcp has authenticated SSRF via instance-URL header in multi-tenant HTTP mode

Impact An authenticated Server-Side Request Forgery in n8n-mcp allows a caller holding a valid AUTHTOKEN to cause the server to issue HTTP requests to arbitrary URLs supplied through multi-tenant HTTP headers. Response bodies are reflected back through JSON-RPC, so an attacker can read the conten...

EUVD-2026-18192

In the Linux kernel, the following vulnerability has been resolved: clsact: Fix use-after-free in init/destroy rollback asymmetry Fix a use-after-free in the clsact qdisc upon init/destroy rollback asymmetry. The latter is achieved by first fully initializing a clsact instance, and then in a seco...

CVE-2026-23413

In the Linux kernel, the following vulnerability has been resolved: clsact: Fix use-after-free in init/destroy rollback asymmetry Fix a use-after-free in the clsact qdisc upon init/destroy rollback asymmetry. The latter is achieved by first fully initializing a clsact instance, and then in a seco...

UBUNTU-CVE-2026-23413

In the Linux kernel, the following vulnerability has been resolved: clsact: Fix use-after-free in init/destroy rollback asymmetry Fix a use-after-free in the clsact qdisc upon init/destroy rollback asymmetry. The latter is achieved by first fully initializing a clsact instance, and then in a seco...

CVE-2026-23413 clsact: Fix use-after-free in init/destroy rollback asymmetry

In the Linux kernel, the following vulnerability has been resolved: clsact: Fix use-after-free in init/destroy rollback asymmetry Fix a use-after-free in the clsact qdisc upon init/destroy rollback asymmetry. The latter is achieved by first fully initializing a clsact instance, and then in a seco...

CVE-2026-23413

The CVE-2026-23413 entry concerns the Linux kernel: a use-after-free in the clsact qdisc during init/destroy rollback caused by asymmetrical initialization between ingress and egress sides. A failed replacement during clsact_init() (e.g., via tcf_block_get_ext()) could leave both ingress and egre...

CVE-2026-23413 clsact: Fix use-after-free in init/destroy rollback asymmetry

In the Linux kernel, the following vulnerability has been resolved: clsact: Fix use-after-free in init/destroy rollback asymmetry Fix a use-after-free in the clsact qdisc upon init/destroy rollback asymmetry. The latter is achieved by first fully initializing a clsact instance, and then in a seco...

Improper Access Control

Cilium is vulnerable to improper access control. The vulnerability is due to missing validation of non-existent or unattached AWS security group IDs in egress policies, which allows an attacker to gain broader outbound network access than intended by the policy configuration...

CVE-2026-32946

A flaw was found in Harden-Runner, a security agent for GitHub Actions runners. An attacker with existing code execution capabilities within a GitHub Actions workflow can bypass network egress policies, which are security measures designed to control outbound network connections. This bypass occu...

CVE-2026-32947

A flaw was found in Harden-Runner. A remote attacker with existing code execution within a GitHub Actions workflow could exploit a DNS over HTTPS DoH vulnerability to bypass network restrictions. This allows for the exfiltration of sensitive data by encoding it within DoH queries, which appear as...

CVE-2026-32946

Harden-Runner is a CI/CD security agent that works like an EDR for GitHub Actions runners. In versions 2.15.1 and below, the Harden-Runner that allows bypass of the egress-policy: block network restriction using DNS queries over TCP. Egress policies are enforced on GitHub runners by filtering...

CVE-2026-32947

Harden-Runner is a CI/CD security agent that works like an EDR for GitHub Actions runners. In versions 2.15.1 and below, a DNS over HTTPS DoH vulnerability allows attackers to bypass egress-policy: block network restrictions by tunneling exfiltrated data through permitted HTTPS endpoints like...

CVE-2026-32947

Harden-Runner (CI/CD security agent for GitHub Actions runners) versions 2.15.1 and earlier are affected by a DNS over HTTPS (DoH) vulnerability that enables data exfiltration through permitted HTTPS endpoints by encoding data (e.g., hostname) in DoH subdomains. The attack requires the attacker t...

EUVD-2026-13539

Harden-Runner is a CI/CD security agent that works like an EDR for GitHub Actions runners. In versions 2.15.1 and below, a DNS over HTTPS DoH vulnerability allows attackers to bypass egress-policy: block network restrictions by tunneling exfiltrated data through permitted HTTPS endpoints like...

CVE-2026-32947 Egress Policy Bypass via DNS over HTTPS (DoH) in Harden-Runner (Community Tier)

Harden-Runner is a CI/CD security agent that works like an EDR for GitHub Actions runners. In versions 2.15.1 and below, a DNS over HTTPS DoH vulnerability allows attackers to bypass egress-policy: block network restrictions by tunneling exfiltrated data through permitted HTTPS endpoints like...

CVE-2026-32947 Egress Policy Bypass via DNS over HTTPS (DoH) in Harden-Runner (Community Tier)

Harden-Runner is a CI/CD security agent that works like an EDR for GitHub Actions runners. In versions 2.15.1 and below, a DNS over HTTPS DoH vulnerability allows attackers to bypass egress-policy: block network restrictions by tunneling exfiltrated data through permitted HTTPS endpoints like...

CVE-2026-32946

Harden-Runner is a CI/CD security agent that works like an EDR for GitHub Actions runners. In versions 2.15.1 and below, the Harden-Runner that allows bypass of the egress-policy: block network restriction using DNS queries over TCP. Egress policies are enforced on GitHub runners by filtering...

CVE-2026-32946

Harden-Runner (GitHub Actions security agent) contains a vulnerability in versions 2.15.1 and earlier that allows bypassing egress-policy: block network restrictions by using DNS queries over TCP. The underlying issue is that DNS over TCP is not adequately restricted when the allowed-endpoints li...

CVE-2026-32946 Egress Policy Bypass via DNS over TCP in Harden-Runner (Community Tier)

Harden-Runner is a CI/CD security agent that works like an EDR for GitHub Actions runners. In versions 2.15.1 and below, the Harden-Runner that allows bypass of the egress-policy: block network restriction using DNS queries over TCP. Egress policies are enforced on GitHub runners by filtering...

CVE-2026-32946 Egress Policy Bypass via DNS over TCP in Harden-Runner (Community Tier)

Harden-Runner is a CI/CD security agent that works like an EDR for GitHub Actions runners. In versions 2.15.1 and below, the Harden-Runner that allows bypass of the egress-policy: block network restriction using DNS queries over TCP. Egress policies are enforced on GitHub runners by filtering...