GO-2026-5046 CPU exhaustion in Avro decoder in github.com/iskorotkov/avro/v2 and github.com/hamba/avro/v2

The Avro array and map decoders loop over an attacker-controlled block-count value without checking the underlying reader's error state inside the loop body. Reader.ReadBlockHeader returns the count as a Go int, which is 64-bit on amd64 and arm64 targets. A producer can declare a block of up to...

Integer Overflow

github.com/iskorotkov/avro is vulnerable to integer overflow. The vulnerability is due to improper handling of attacker-controlled 64-bit values, integer truncation, and overflow-prone arithmetic in multiple decoder paths, which allows an attacker to exploit untrusted Avro streams to trigger...

GHSA-W8J3-PQ8G-8M7W iskorotkov/avro: CPU Exhaustion in Decoder

CPU Exhaustion in Avro Decoder via Unbounded Block-Count Iteration Summary The Avro array and map decoders looped over an attacker-controlled block-count value without checking the underlying reader's error state inside the loop body. Reader.ReadBlockHeader returns the count as a Go int, which is...

PT-2026-41800

Name of the Vulnerable Software and Affected Versions iskorotkov/avro versions prior to 2.33.0 github.com/hamba/avro/v2 versions prior to 2.32.0 Description Remote, unauthenticated denial-of-service occurs due to CPU exhaustion in the Avro array and map decoders. The issue arises because the...