Every FirewallSync article, newest first.
The CERT/CC SSVC deployer model turns four inputs into Defer, Scheduled, Out-of-cycle or Immediate. This guide reproduces all 72 rows of its example …
MutatingAdmissionPolicy lets the Kubernetes API server change incoming objects with CEL expressions instead of calling a webhook. This guide covers …
Most JWT vulnerabilities aren't flaws in the standard — they're implementation shortcuts that trust the token to describe its own validity. Here's …
A CVSS v4.0 score is only as meaningful as the vector behind it. This guide decodes every metric in a v4.0 vector string, shows how the same flaw …
ValidatingAdmissionPolicy lets the Kubernetes API server enforce custom rules written in CEL, with no webhook to run. This guide shows the policy, …
IDOR is one of the simplest vulnerability classes to understand and one of the easiest to miss in testing, because it doesn't fail — it just returns …
A CVE ID is not always a confirmed, fixable flaw. The CVE Record Format has two states, Published and Rejected, plus tags such as disputed and …
FIRST publishes EPSS scores as a free daily CSV with three columns. Here is what epss and percentile each promise, how the October 15, 2026 file is …
Broken access control has topped the OWASP Top 10 since 2021 for a reason: it's not one vulnerability type, it's an entire category of ways …
Pod Security Admission is the Kubernetes built-in that blocks risky pod settings per namespace. This guide explains the three levels, the three modes, …
CISA publishes the Known Exploited Vulnerabilities catalog as a JSON file. Here is every field, what the schema does and does not promise, how due …
Rate limiting is treated as a solved problem once it's implemented. In practice, the algorithm and the scope you choose determine whether it actually …
