CVE-2026-58469

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://gitlab.com/gnuwget/wget/-/commit/37a40fcb450153f69537c7cbc2a7a4fb0b6f7826	Patch
https://www.vulncheck.com/advisories/gnu-wget-heap-buffer-underread-via-metalink-url-parsing	Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:gnu:wget:*:*:*:*:*:*:*:*

History

09 Jul 2026, 15:59

Type	Values Removed	Values Added
References	~~() https://gitlab.com/gnuwget/wget/-/commit/37a40fcb450153f69537c7cbc2a7a4fb0b6f7826 -~~	() https://gitlab.com/gnuwget/wget/-/commit/37a40fcb450153f69537c7cbc2a7a4fb0b6f7826 - Patch
References	~~() https://www.vulncheck.com/advisories/gnu-wget-heap-buffer-underread-via-metalink-url-parsing -~~	() https://www.vulncheck.com/advisories/gnu-wget-heap-buffer-underread-via-metalink-url-parsing - Patch, Third Party Advisory
First Time		Gnu Gnu wget
CPE		cpe:2.3:a:gnu:wget::::::::

07 Jul 2026, 21:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-07 21:17

Updated : 2026-07-09 15:59

NVD link : CVE-2026-58469

Mitre link : CVE-2026-58469

CVE.ORG link : CVE-2026-58469

JSON object : View

Products Affected

gnu

wget

CWE

CWE-125

Out-of-bounds Read

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