CVE-2026-106452 yawkat LZ4 Java: LZ4BlockInputStream allocates an unvalidated compressed length from the stream header

yawkat LZ4 Java provides LZ4 compression for Java. Prior to 1.11.2, net.jpountz.lz4.LZ4BlockInputStream refill validates that the compressedLen field in a legacy LZ4Block header is nonnegative but allocates a compressed-input buffer of that attacker-controlled size before reading payload data,...