PatchTheCVECVE-2026-54679: jq is a command-line JSON processor
CVE-2026-54679 is a medium-severity flaw (CVSS 5.5) affecting jq. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
jq is a command-line JSON processor. Prior to 1.8.2, on 32bit system, jvp_string_append has a chance of integer/multiple overflowing and then causing a massive buffer overrun. This vulnerability is fixed in 1.8.2.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.5 (Medium) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 0.1% (top 96%) |
| CISA exploited list | No |
| Weakness | CWE-190 |
| Published | 2026-06-25 |
| Last modified | 2026-10-25 |
Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-54679?
jq: upgrade to 1.8.2. Exact commands for each OS are on this page.
Is CVE-2026-54679 being exploited?
CVE-2026-54679 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-54679 affect?
CVE-2026-54679 affects jq. Severity is medium (CVSS 5.5). jq is a command-line JSON processor. Prior to 1.8.2, on 32bit system, jvp_string_append has a chance of integer/multiple overflowing and then causing a massive buffer overrun. This vulnerability is fixed in 1.8.2.
How urgent is CVE-2026-54679?
Priority 20/100. No elevated risk signals yet.
Related CVEs
- CVE-2026-49839 HIGH 7.1 UPGRADE jq is a command-line JSON processor
- CVE-2026-47770 MEDIUM 5.5 UPGRADE jq is a command-line JSON processor