CVE-2026-100836 [MEDIUM] – Contrast through 1.20.0 contains a panic vulnerability in the transit-engine endpoint’s ci

Contrast through 1.20.0 contains a panic vulnerability in the transit-engine endpoint’s ciphertextContainer.UnmarshalJSON function that fails to validate decoded ciphertext length before slicing. An authenticated workload with a valid mesh certificate can trigger a runtime panic by submitting a short base64-encoded ciphertext, causing log spam and request failures without crashing the process.