Description
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 JSON object (~100 KB) where all keys hashed to the same bucket, hash table lookups degraded from O(1) to O(n), turning any jq expression into an O(n²) operation and causing significant CPU exhaustion. This affected common jq use cases such as CI/CD pipelines, web services, and data processing scripts, and was far more practical to exploit than existing heap overflow issues since it required only a small payload. This issue has been patched in commit 0c7d133c3c7e37c00b6d46b658a02244fdd3c784.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| jqlang | jq | < 0c7d133c3c7e37c00b6d46b658a02244fdd3c784 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | jq | 1.8.1-5 | — |
| Debian 13 | jq | 1.7.1-6+deb13u2 | — |
| Debian 12 | jq | 1.6-2.1+deb12u2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | jq | 1.8.1-4ubuntu2 | — |
| Ubuntu 25.10 | jq | 1.8.1-3ubuntu1.1 | USN-8202-1 |
| Ubuntu 24.04 LTS | jq | 1.7.1-3ubuntu0.24.04.2 | USN-8202-1 |
| Ubuntu 22.04 LTS | jq | 1.6-2.1ubuntu3.2 | USN-8202-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | jq | 1.6-1ubuntu0.20.04.1+esm2 | USN-8202-1 |
| Ubuntu Pro 18.04 LTS | jq | 1.5+dfsg-2ubuntu0.1~esm3 | USN-8202-1 |
| Ubuntu Pro 16.04 LTS | jq | 1.5+dfsg-1ubuntu0.1+esm4 | USN-8202-1 |
| Ubuntu Pro 14.04 LTS | jq | 1.3-1.1ubuntu1.1+esm4 | USN-8202-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | jq +1 | 1.7.1-11.el10_1.0.2 | RHSA-2026:19151, RHSA-2026:16692 |
| RHEL 9 | jq +1 | 1.6-19.el9_7.0.2 | RHSA-2026:19365, RHSA-2026:16693 |
| RHEL 8 | jq +1 | 1.6-12.el8_10 | RHSA-2026:16252 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10.0 EUS | jq +1 | 1.7.1-8.el10_0.3 | RHSA-2026:18040 |
| RHEL 9.6 EUS | jq +1 | 1.6-17.el9_6.4 | RHSA-2026:18042 |
| RHEL 9.4 EUS | jq +1 | 1.6-16.el9_4.2 | RHSA-2026:18043 |
| RHEL 9.2 E4S | jq | 1.6-15.el9_2.3 | RHSA-2026:18044 |
| RHEL 9.0 E4S | jq | 1.6-12.el9_0.3 | RHSA-2026:18045 |
| RHEL 8.8 TUS | jq | 1.6-6.el8_8.4 | RHSA-2026:18046 |
| RHEL 8.8 E4S | jq | 1.6-6.el8_8.4 | RHSA-2026:18046 |
| RHEL 8.6 TUS | jq | 1.6-3.el8_6.2 | RHSA-2026:18047 |
| RHEL 8.6 E4S | jq | 1.6-3.el8_6.2 | RHSA-2026:18047 |
| RHEL 8.6 AUS | jq | 1.6-3.el8_6.2 | RHSA-2026:18047 |
| RHEL 8.4 EUS Long Life | jq | 1.5-12.el8_4.5 | RHSA-2026:18048 |
| RHEL 8.4 AUS | jq | 1.5-12.el8_4.5 | RHSA-2026:18048 |
| Red Hat Hardened Images 1 | jq +1 | 1.8.1-3.hum1 | RHSA-2026:8579 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | jq +1 | 1.7.1-11.el10_1.0.2 | ALSA-2026:19151, ALSA-2026:16692 |
| AlmaLinux 9 | jq +1 | 1.6-19.el9_7.0.2 | ALSA-2026:19365, ALSA-2026:16693 |
| AlmaLinux 8 | jq +1 | 1.6-12.el8_10 | ALSA-2026:16252 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | jq | 1.7.1-11.el10_1.0.2 | RLSA-2026:98603, RLSA-2026:19151, RLSA-2026:16692 |
| Rocky Linux 10 | jq-devel | 1.7.1-13.el10_3 | RLSA-2026:98603 |
| Rocky Linux 9 | jq | 1.6-19.el9_7.0.2 | RLSA-2026:98496, RLSA-2026:19365, RLSA-2026:16693 |
| Rocky Linux 9 | jq-devel | 1.6-21.el9_9 | RLSA-2026:98496 |
| Rocky Linux 8 | jq | 1.6-12.el8_10 | RLSA-2026:16252 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | jq | 1.6-150000.3.20.1 | SUSE-SU-2026:4275-1, SUSE-SU-2026:2983-1 |
| SLES 15 SP6 | jq | 1.7.1-150000.3.25.1 | SUSE-SU-2026:4275-1 |
| SLES 15 SP5 | jq | 1.7.1-150000.3.25.1 | SUSE-SU-2026:4275-1 |
| SLES 15 SP4 | jq | 1.7.1-150000.3.25.1 | SUSE-SU-2026:4275-1 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | jq | 1.7.1-160000.3.1 | SUSE-SU-2026:22566-1 |
| SLES for SAP 15 SP6 | jq | 1.7.1-150000.3.25.1 | SUSE-SU-2026:4275-1 |
| SLES for SAP 15 SP5 | jq | 1.7.1-150000.3.25.1 | SUSE-SU-2026:4275-1 |
| SLES for SAP 15 SP4 | jq | 1.7.1-150000.3.25.1 | SUSE-SU-2026:4275-1 |
| SLES 16.0 | jq | 1.7.1-160000.3.1 | SUSE-SU-2026:22566-1 |
| SLE Micro 6.2 | jq | 1.7.1-160000.3.1 | SUSE-SU-2026:22545-1 |
| SLE Micro 6.1 | jq | 1.7.1-slfo.1.1_3.1 | SUSE-SU-2026:22664-1 |
| SLE Micro 6.0 | jq | 1.6-6.1 | SUSE-SU-2026:23873-1, SUSE-SU-2026:22705-1 |
| SLE Micro 5.5 | jq | 1.6-150000.3.20.1 | SUSE-SU-2026:4275-1, SUSE-SU-2026:2983-1 |
| SLE Micro 5.4 | jq | 1.6-150000.3.20.1 | SUSE-SU-2026:4275-1, SUSE-SU-2026:2983-1 |
| SLE Micro 5.3 | jq | 1.6-150000.3.20.1 | SUSE-SU-2026:4275-1, SUSE-SU-2026:2983-1 |
| SLE HPC 15 SP5 | jq | 1.7.1-150000.3.25.1 | SUSE-SU-2026:4275-1 |
| SLE HPC 15 SP4 | jq | 1.7.1-150000.3.25.1 | SUSE-SU-2026:4275-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | jq | 1.8.1-3.1 | openSUSE-SU-2026:10850-1 |
| openSUSE Leap 16.0 | jq | 1.7.1-160000.3.1 | openSUSE-SU-2026:21248-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | jq | 1.8.2-r0 | — |
| Alpine v3.23 | jq | 1.8.2-r0 | — |
| Alpine v3.22 | jq | 1.8.2-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | jq +1 | 1.8.1-59.amzn2023 | ALAS2023-2026-1815 |
| Amazon Linux 2 | jq +1 | 1.6-17.amzn2.0.1 | ALAS2-2026-3496 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | jq | 1.7.1-5 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | jq +1 | 1.7.1-11.el10_1.0.2 | ELSA-2026-19151, ELSA-2026-16692 |
| Oracle Linux 9 | jq +1 | 1.6-19.el9_7.0.2 | ELSA-2026-19365, ELSA-2026-16693 |
| Oracle Linux 8 | jq +1 | 1.6-12.el8_10 | ELSA-2026-16252 |
Advisories 44
- RLSA-2026:98603 Important: jq security update Rocky Linux Security Advisories · Nov 13, 2026
- RLSA-2026:98496 Important: jq security update Rocky Linux Security Advisories · Nov 13, 2026
- WID-SEC-2026-1183 Red Hat Hardened Images RPMs (jq und pyOpenSSL): Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 12, 2026
- ALSA-2026:16692 Important: jq security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:19365 Important: jq security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:16693 Important: jq security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:19151 Important: jq security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:16252 Important: jq security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:8579 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 6, 2026
- RHSA-2026:19365 Red Hat Security Advisory: jq security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- RHSA-2026:19151 Red Hat Security Advisory: jq security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- RHSA-2026:18047 Red Hat Security Advisory: jq security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- RHSA-2026:18048 Red Hat Security Advisory: jq security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- RHSA-2026:18046 Red Hat Security Advisory: jq security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- RHSA-2026:18043 Red Hat Security Advisory: jq security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- RHSA-2026:18044 Red Hat Security Advisory: jq security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- RHSA-2026:18045 Red Hat Security Advisory: jq security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- RHSA-2026:18040 Red Hat Security Advisory: jq security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- RHSA-2026:18042 Red Hat Security Advisory: jq security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- RHSA-2026:16693 Red Hat Security Advisory: jq security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- RHSA-2026:16692 Red Hat Security Advisory: jq security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- RHSA-2026:16252 Red Hat Security Advisory: jq security update Red Hat Security Advisories (RHSA) · Oct 2, 2026
- SUSE-SU-2026:23873-1 Security update for jq SUSE / openSUSE Security Updates · Sep 28, 2026
- SUSE-SU-2026:4275-1 Security update for jq SUSE / openSUSE Security Updates · Sep 21, 2026
- USN-8202-1 jq vulnerabilities Ubuntu Security Notices (USN) · Aug 31, 2026
- SUSE-SU-2026:22705-1 Security update for jq SUSE / openSUSE Security Updates · Jul 23, 2026
- SUSE-SU-2026:22664-1 Security update for jq SUSE / openSUSE Security Updates · Jul 21, 2026
- ELSA-2026-19151 Important: jq security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Jul 16, 2026
- SUSE-SU-2026:22566-1 Security update for jq SUSE / openSUSE Security Updates · Jul 15, 2026
- SUSE-SU-2026:2983-1 Security update for jq SUSE / openSUSE Security Updates · Jul 15, 2026
- SUSE-SU-2026:22545-1 Security update for jq SUSE / openSUSE Security Updates · Jul 14, 2026
- openSUSE-SU-2026:21248-1 Security update for jq SUSE / openSUSE Security Updates · Jul 9, 2026
- ALAS2-2026-3496 Moderate: jq security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jul 7, 2026
- ELSA-2026-19365 Important: jq security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jun 23, 2026
- ALAS2023-2026-1815 Moderate: jq security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jun 8, 2026
- RLSA-2026:19151 Important: jq security update Rocky Linux Security Advisories · May 29, 2026
- RLSA-2026:19365 Important: jq security update Rocky Linux Security Advisories · May 28, 2026
- openSUSE-SU-2026:10850-1 jq-1.8.1-3.1 on GA media SUSE / openSUSE Security Updates · May 25, 2026
- RLSA-2026:16252 Important: jq security update Rocky Linux Security Advisories · May 14, 2026
- RLSA-2026:16693 Important: jq security update Rocky Linux Security Advisories · May 14, 2026
- RLSA-2026:16692 Important: jq security update Rocky Linux Security Advisories · May 14, 2026
- ELSA-2026-16693 Important: jq security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 13, 2026
- ELSA-2026-16252 Important: jq security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 13, 2026
- ELSA-2026-16692 Important: jq security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · May 13, 2026