Vulnerability Description
GNU Wget through 1.25.0, fixed in commit dd692d9, contains a heap buffer overflow vulnerability in the html_quote_string() function in src/convert.c that allows a remote attacker to trigger memory corruption by supplying a crafted HTML attribute with a large number of characters requiring entity encoding. A server-supplied HTML attribute causes a signed integer counter to overflow during output size accumulation, resulting in an undersized heap allocation and subsequent heap buffer overflow during the copy phase.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gnu | Wget | <= 1.25.0 |
Related Weaknesses (CWE)
References
- https://gitlab.com/gnuwget/wget/-/commit/dd692d9cea5335b181d877ae917fe6e75587a81Patch
- https://www.vulncheck.com/advisories/gnu-wget-heap-buffer-overflow-via-html-attrPatchThird Party Advisory
FAQ
What is CVE-2026-58472?
CVE-2026-58472 is a vulnerability with a CVSS score of 5.9 (MEDIUM). GNU Wget through 1.25.0, fixed in commit dd692d9, contains a heap buffer overflow vulnerability in the html_quote_string() function in src/convert.c that allows a remote attacker to trigger memory cor...
How severe is CVE-2026-58472?
CVE-2026-58472 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-58472?
Check the references section above for vendor advisories and patch information. Affected products include: Gnu Wget.