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Fedora 44 Coreutils Denial of Service CVE-2026

Linuxsecurity •LinuxSecurity Advisories • August 5, 2026

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These are the GNU core utilities. This package is the combination of

the old GNU fileutils, sh-utils, and textutils packages.

* Mon Aug 3 2026 Lukáš Zaoral - 9.10-5 - CVE-2026-56391 - uniq: fix read overrun with -w (rhbz#2507449)

[ 1 ] Bug #2507449 - CVE-2026-56391 coreutils: GNU coreutils uniq: Denial of Service and information disclosure via out-of-bounds read with multibyte input [fedora-all]

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-36041358b1' at the command line. For more information, refer to the dnf documentation available at

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The full story

This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Critical Vulnerabilities in Fedora 43: Information Disclosure and Header Smuggling Fedora 43 has reported two critical vulnerabilities affecting libsoup3 and perl-HTTP-Tiny. CVE-2026-5119, published on March 30, 2026, allows information disclosure via cleartext transmission of cookies during HTTPS tunnel establishment. This vulnerability impacts users of libsoup3 in Fedora 43. CVE-2026-7010, published on May 11, 2026, addresses a header smuggling issue in perl-HTTP-Tiny, which can introduce security risks by allowing invalid characters in headers. Both vulnerabilities can be mitigated by applying the latest updates available through the dnf update program. Users are urged to upgrade to the patched versions to secure their systems against potential exploitation. 99 sources 58

Extracted Entities

Fedora 44 Coreutils Denial of Service CVE-2026

The full story

Extracted Entities

Attack Types (2)

CVEs (1)

CWE Weaknesses (2)

Platforms (1)