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.
- Published Jul 7, 2026
- CVSS 8.7 high
- 0.5% chance of exploitation in the next 30 days (EPSS)
- A fix is available
Affected software
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