CVE-2026-58469GNU Wget 1.25.0 Heap Buffer Underread via Metalink URL Parsing

Descripción

GNU Wget through 1.25.0, fixed in commit 37a40fc, contains a heap buffer underread vulnerability in the clean_metalink_string() function within src/metalink.c that allows a malicious server to trigger memory corruption by serving a Metalink document containing a whitespace-only URL. Attackers can cause the function to decrement a pointer past the start of the buffer when processing an all-whitespace Metalink URL, potentially leading to abnormal program behavior.

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Referencias y parches

• Fix Commit patchPatch
• https://www.vulncheck.com/advisories/gnu-wget-heap-buffer-underread-via-metalink-url-parsing third-party-advisoryPatchThird Party Advisory