# GNU Coreutils vulnerabilities

Source: https://junglewise.ai/threats/technologies/coreutils  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/coreutils.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 4 vulnerabilities in GNU Coreutils: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-56392, was published on 24 July 2026.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 4 (0 critical, 0 exploited in the wild)

## About GNU Coreutils

GNU Coreutils is a collection of basic file, shell and text processing command-line utilities for Unix-like operating systems.

## Latest GNU Coreutils vulnerabilities

- [CVE-2026-56392: GNU coreutils heap buffer overflow in unexpand](https://junglewise.ai/threats/cve-2026-56392-gnu-coreutils-heap-buffer-overflow-in-unexpand) (info, CVSS 1.8, published 24 Jul 2026)
- [CVE-2026-56391: GNU coreutils out-of-bounds read in uniq](https://junglewise.ai/threats/cve-2026-56391-gnu-coreutils-out-of-bounds-read-in-uniq) (info, CVSS 4.6, published 24 Jul 2026)
- [uutils coreutils incorrect exit code in chown and chgrp](https://junglewise.ai/threats/uutils-coreutils-incorrect-exit-code-in-chown-and-chgrp-425aff42) (medium, CVSS 5.5, published 22 Apr 2026)
- [CVE-2025-5278: GNU Coreutils heap buffer under-read in sort utility](https://junglewise.ai/threats/cve-2025-5278-gnu-coreutils-heap-buffer-under-read-in-sort-utility) (medium, CVSS 4.4, published 27 May 2025)

## Most severe GNU Coreutils vulnerabilities

- [uutils coreutils incorrect exit code in chown and chgrp](https://junglewise.ai/threats/uutils-coreutils-incorrect-exit-code-in-chown-and-chgrp-425aff42) (medium, CVSS 5.5, published 22 Apr 2026)
- [CVE-2025-5278: GNU Coreutils heap buffer under-read in sort utility](https://junglewise.ai/threats/cve-2025-5278-gnu-coreutils-heap-buffer-under-read-in-sort-utility) (medium, CVSS 4.4, published 27 May 2025)
- [CVE-2026-56391: GNU coreutils out-of-bounds read in uniq](https://junglewise.ai/threats/cve-2026-56391-gnu-coreutils-out-of-bounds-read-in-uniq) (info, CVSS 4.6, published 24 Jul 2026)
- [CVE-2026-56392: GNU coreutils heap buffer overflow in unexpand](https://junglewise.ai/threats/cve-2026-56392-gnu-coreutils-heap-buffer-overflow-in-unexpand) (info, CVSS 1.8, published 24 Jul 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Gnu technologies

- [Gnu Binutils](https://junglewise.ai/threats/technologies/binutils): 42 vulnerabilities
- [GnuTLS](https://junglewise.ai/threats/technologies/gnutls): 21 vulnerabilities
- [Gnu Glibc](https://junglewise.ai/threats/technologies/glibc): 20 vulnerabilities
- [Gnu LibreDWG](https://junglewise.ai/threats/technologies/libredwg): 14 vulnerabilities
- [Gnu Emacs](https://junglewise.ai/threats/technologies/emacs): 10 vulnerabilities
- [GNU tar](https://junglewise.ai/threats/technologies/tar): 10 vulnerabilities
- [Gnu C Library](https://junglewise.ai/threats/technologies/c-library): 9 vulnerabilities
- [Gnu Bash](https://junglewise.ai/threats/technologies/bash): 7 vulnerabilities
- [Gnu Wget](https://junglewise.ai/threats/technologies/wget): 7 vulnerabilities
- [Gnu Cpio](https://junglewise.ai/threats/technologies/cpio): 5 vulnerabilities
- [Gnu Grub2](https://junglewise.ai/threats/technologies/grub2): 5 vulnerabilities
- [Gnu Aspell](https://junglewise.ai/threats/technologies/aspell): 4 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "GNU Coreutils vulnerabilities", https://junglewise.ai/threats/technologies/coreutils, 13 November 2026.