Improper Validation of Array Index Affecting github.com/edgelesssys/contrast/coordinator/internal/transitengineapi package, versions <1.21.0
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- published1 Jul 2026
- disclosed1 Jul 2026
- creditUnknown
Introduced: 1 Jul 2026
CVE NOT AVAILABLE CWE-129 Â (opens in a new tab)How to fix?
Upgrade github.com/edgelesssys/contrast/coordinator/internal/transitengineapi to version 1.21.0 or higher.
Overview
Affected versions of this package are vulnerable to Improper Validation of Array Index in the UnmarshalJSON function when processing attacker-controlled short ciphertexts. An attacker can cause the server to panic and disrupt service by submitting a specially crafted JSON payload with a base64-encoded ciphertext shorter than the required nonce length. This results in log flooding, failed requests, and potential information disclosure through stack traces in logs. This is only exploitable if the attacker possesses a valid mesh certificate for any WorkloadSecretID.