CVE-2026-40164 jq: Algorithmic complexity DoS via hardcoded MurmurHash3 seed

jq is a command-line JSON processor. Before commit 0c7d133c3c7e37c00b6d46b658a02244fdd3c784, jq used MurmurHash3 with a hardcoded, publicly visible seed 0x432A9843 for all JSON object hash table operations, which allowed an attacker to precompute key collisions offline. By supplying a crafted JSO...

CVE-2026-40164

jq is a command-line JSON processor. Before commit 0c7d133c3c7e37c00b6d46b658a02244fdd3c784, jq used MurmurHash3 with a hardcoded, publicly visible seed 0x432A9843 for all JSON object hash table operations, which allowed an attacker to precompute key collisions offline. By supplying a crafted JSO...