Ubuntu 26.04 LTS Wget Important Denial of Service 2026

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USN-8543-1 introduced a regression in Wget. Software Description: - wget: retrieves files from the web Details: USN-8543-1 fixed vulnerabilities in Wget. The update for CVE-2026-58472 was incomplete and could introduce a regression. This update fixes the problem. We apologize for the inconvenience. Original advisory details: It was discovered that Wget mishandled semicolons in the userinfo subcomponent of a URL. A remote attacker could possibly use this issue to trick a user into connecting to a different host than intended. This issue only affected Ubuntu 14.04 LTS. (CVE-2024-38428) It was discovered that Wget incorrectly handled Metalink documents containing a whitespace-only URL. A remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-58469) It was discovered that Wget incorrectly handled Content-Range header va... Read the Full Advisory

USN-8543-1 introduced a regression in Wget.

Software Description:

- wget: retrieves files from the web

USN-8543-1 fixed vulnerabilities in Wget. The update for CVE-2026-58472

was incomplete and could introduce a regression. This update fixes the

We apologize for the inconvenience.

Original advisory details:

It was discovered that Wget mishandled semicolons in the userinfo

subcomponent of a URL. A remote attacker could possibly use this issue

to trick a user into connecting to a different host than intended. This

issue only affected Ubuntu 14.04 LTS. (CVE-2024-38428)

It was discovered that Wget incorrectly handled Metalink documents

containing a whitespace-only URL. A remote attacker could possibly use

this issue to cause a denial of service. This issue only affected Ubuntu

18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and

Ubuntu 26.04 LTS. (CVE-2026-58469)

It was discovered that Wget incorrectly handled Content-Range header

The problem can be corrected by updating your system to the following package versions: Ubuntu 26.04 LTS wget 1.25.0-2ubuntu4.4 Ubuntu 24.04 LTS wget 1.21.4-1ubuntu4.5 Ubuntu 22.04 LTS wget 1.21.2-2ubuntu1.5 Ubuntu 20.04 LTS wget 1.20.3-1ubuntu2.1+esm4 Available with Ubuntu Pro Ubuntu 18.04 LTS wget 1.19.4-1ubuntu2.2+esm5 Available with Ubuntu Pro Ubuntu 16.04 LTS wget 1.17.1-1ubuntu1.5+esm5 Available with Ubuntu Pro Ubuntu 14.04 LTS wget 1.15-1ubuntu1.14.04.5+esm4 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes.

Ubuntu Security Notice USN-8543-2

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