CVE-2026-58469
GNU Wget 1.25.0 Heap Buffer Underread via Metalink URL Parsing
CVSS Score
7.5
EPSS Score
0.4%
EPSS Percentile
27th
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.
| CWE | CWE-125 |
| Vendor | gnuwget |
| Product | wget |
| Published | Jul 7, 2026 |
| Last Updated | Jul 14, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
gnuwget / wget
0 ≤ 1.25.0
References
Credits
Tristan Madani