{"id":"CVE-2026-58469","summary":"GNU Wget 1.25.0 Heap Buffer Underread via Metalink URL Parsing","details":"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.","modified":"2026-07-10T03:53:48.888872795Z","published":"2026-07-07T19:43:34.767Z","database_specific":{"cwe_ids":["CWE-125"],"cna_assigner":"VulnCheck","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58469.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58469.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-58469"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/gnu-wget-heap-buffer-underread-via-metalink-url-parsing"},{"type":"FIX","url":"https://gitlab.com/gnuwget/wget/-/commit/37a40fcb450153f69537c7cbc2a7a4fb0b6f7826"},{"type":"PACKAGE","url":"https://gitlab.com/gnuwget/wget"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://gitlab.com/gnuwget/wget","events":[{"introduced":"0"},{"fixed":"abb989138731341e5cfd285d272b24afb60fd1a9"},{"fixed":"37a40fcb450153f69537c7cbc2a7a4fb0b6f7826"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"1.25.0"}],"source":["DESCRIPTION","REFERENCES"]}}],"versions":["v1.25.0","v1.24.5","v1.21.4","v1.21.3","v1.21.2","v1.21.1","v1.21","v1.20.3","v1.20.2","v1.20.1","v1.20","v1.19.5","v1.19.4","v1.19.3","v1.19.2","v1.19.1","v1.19","v1.18","v1.17.1","v1.17","v1.16.3","v1.16.2","v1.16.1","v1.16","v1.15","v1.14","v1.13.4","v1.13.3","v1.13.2","v1.13.1","v1.13","v1.12"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-58469.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"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"}]}