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High 7.5Published Jul 7, 2026

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

Updated under an hour ago ()

Does this affect you?

It affects gnuwget wget and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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
7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
CWE-125
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
VulnCheck
NVD analysis
Analyzed
Record last updated
Jul 14, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
gnuwget wget
gnuwget:wget (from the name)
through 1.25.0; 37a40fcb450153f69537c7cbc2a7a4fb0b6f7826 not affected
CNA record
gnu wget
gnu:wget
through 1.25.0
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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