jq: Stack Overflow in Recursive Object Merge
CVE-2026-43896 is fixed in 4 products on 1 platform, first by DEBIAN-CVE-2026-43896, released May 27, 2026. It is not reported as exploited. Patch Radar priority: Routine.
jq is a command-line JSON processor. In 1.8.1 and earlier, unbounded recursion in jv_object_merge_recursive() allows a crafted jq program to crash the process with a segfault. The function is reachable through the * operator when both operands are objects.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| jq · Debian 12.15 (bookworm) | 1.6-2.1+deb12u2 | DEBIAN-CVE-2026-43896 | May 27, 2026 |
| jq · Debian 13.5 (trixie) | 1.7.1-6+deb13u3 | DEBIAN-CVE-2026-43896 | May 27, 2026 |
| jq · Debian 14 | 1.8.1-6 | DEBIAN-CVE-2026-43896 | May 27, 2026 |
| jq · amzn 2023 | 1.8.1-59.amzn2023 | ALAS2023-2026-1815 | Jun 8, 2026 |
| jq · opensuse-leap 16.0 | 1.7.1-160000.4.1 | OPENSUSE-SU-2026:21318-1 | Jul 13, 2026 |
| jq · sles 15.6 | 1.7.1-150000.3.25.1 | SUSE-SU-2026:4275-1 | Sep 21, 2026 |
| jq · sles 15.7 | 1.7.1-150000.3.25.1 | SUSE-SU-2026:4275-1 | Sep 21, 2026 |
| jq · sles 16.0 | 1.7.1-160000.4.1 | SUSE-SU-2026:22637-1 | Jul 13, 2026 |
| jq-debuginfo · amzn 2023 | 1.8.1-59.amzn2023 | ALAS2023-2026-1815 | Jun 8, 2026 |
| jq-debugsource · amzn 2023 | 1.8.1-59.amzn2023 | ALAS2023-2026-1815 | Jun 8, 2026 |
| jq-devel · amzn 2023 | 1.8.1-59.amzn2023 | ALAS2023-2026-1815 | Jun 8, 2026 |
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