Apache Tomcat DIGEST Auth: The Bypass That Doesn't Bypass
CVE-2026-43512
Even if digest hashes match, authentication still fails. This post documents why CVE-2026-43512 is a confirmed bug but not a confirmed bypass.
Every week, advisories label vulnerabilities CRITICAL. Few people verify if they actually are. This blog does.
Even if digest hashes match, authentication still fails. This post documents why CVE-2026-43512 is a confirmed bug but not a confirmed bypass.
Every week, advisories rate vulnerabilities as CRITICAL. Few people verify whether they are actually exploitable. This blog documents that verification process โ with real containers, real source code references, and honest verdicts.
Written by a product security engineer. No hype. No speculation. Beyond PoCs. Real impact.