PatchTheCVEcoreutils vulnerabilities and fixes
Recent CVEs affecting coreutils, with upgrade or downgrade steps. 2 tracked.
coreutils has 2 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 1. Most recent: 2026-07-24. Highest priority: CVE-2026-56391 (score 23/100).
- CVE-2026-56391 MEDIUM 6.1 UPGRADE GNU coreutils uniq is vulnerable to an out‑of‑bounds read due to incorrect handling of multibyte input when th
- CVE-2026-56392 MEDIUM 6.1 MITIGATE GNU coreutils unexpand is vulnerable to a heap-based buffer overflow due to an integer overflow during buffer
FAQ
How do I fix coreutils vulnerabilities?
Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.
Is coreutils being exploited right now?
None of the tracked coreutils CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which coreutils CVE should I patch first?
CVE-2026-56391 currently ranks highest (23/100): GNU coreutils uniq is vulnerable to an out‑of‑bounds read due to incorrect handling of multibyte input when th.