CVE-2026-45799: Kotlin Protobuf Missing Negative Length Check
A protobuf parser skipped a length-delimited group by passing an unvalidated varint length to a `skip` function. An attacker can craft a payload with a negative length, causing the skip operation to throw an unhandled exception and leading to a Denial of Service (DoS). Validate that the length is non-negative before skipping bytes.
Kotlingreprules fetch cve-2026-45799-kotlin-protobuf-missing-negative-length-check --engine opengrepDescription
A protobuf parser skipped a length-delimited group by passing an unvalidated varint length to a `skip` function. An attacker can craft a payload with a negative length, causing the skip operation to throw an unhandled exception and leading to a Denial of Service (DoS). Validate that the length is non-negative before skipping bytes.
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