CVE-2026-58469
8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| gnuwget | wget | 0 <= 1.25.0 | affected |
| gnuwget | wget | 37a40fcb450153f69537c7cbc2a7a4fb0b6f7826 | unaffected |
Weaknesses
- CWE-125: Out-of-bounds Read
References
- https://gitlab.com/gnuwget/wget/-/commit/37a40fcb450153f69537c7cbc2a7a4fb0b6f7826
- https://www.vulncheck.com/advisories/gnu-wget-heap-buffer-underread-via-metalink-url-parsing
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