ColdFusion CFMail Broken After Security Update: The Felix Cache Fix Explained
This story is from 2026-09-30. It is preserved in the archive; the latest stories are on the live feed.
If started throwing errors — or pages started hanging and returning HTTP 500 — right after you applied a ColdFusion security update, and the stack trace mentions MailImpl.signMail, VerifyError / "Bad type on operand stack," and BouncyCastle (org/bouncycastle/asn1/smime/...), you've hit a known, doc…
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- 2026-09-30 11:11 · DEV Community — AI
ColdFusion CFMail Broken After Security Update: The Felix Cache Fix Explained