CVE-2026-58469

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-58469", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-06-30T20:20:33.790Z", "datePublished": "2026-07-07T19:43:34.767Z", "dateUpdated": "2026-07-14T22:03:10.940Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-07-14T22:03:10.940Z"}, "title": "GNU Wget 1.25.0 Heap Buffer Underread via Metalink URL Parsing", "descriptions": [{"lang": "en", "value": "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."}], "tags": ["x_open-source"], "datePublic": "2026-06-29T00:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-125", "description": "Out-of-bounds Read", "type": "CWE"}]}], "affected": [{"defaultStatus": "affected", "vendor": "gnuwget", "product": "wget", "repo": "https://gitlab.com/gnuwget/wget", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "1.25.0"}, {"status": "unaffected", "version": "37a40fcb450153f69537c7cbc2a7a4fb0b6f7826", "versionType": "git"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:gnu:wget:*:*:*:*:*:*:*:*", "versionEndIncluding": "1.25.0"}]}]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 8.7, "vectorString": "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"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "version": "3.1", "baseSeverity": "HIGH", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}}], "references": [{"url": "https://gitlab.com/gnuwget/wget/-/commit/37a40fcb450153f69537c7cbc2a7a4fb0b6f7826", "name": "Fix Commit", "tags": ["patch"]}, {"url": "https://www.vulncheck.com/advisories/gnu-wget-heap-buffer-underread-via-metalink-url-parsing", "tags": ["third-party-advisory"]}], "credits": [{"lang": "en", "value": "Tristan Madani", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "vulncheck"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-08T13:36:30.807990Z", "id": "CVE-2026-58469", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-08T13:36:42.645Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-58469", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-08T13:36:30.807990Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-08T13:36:38.971Z"}}], "cna": {"tags": ["x_open-source"], "title": "GNU Wget 1.25.0 Heap Buffer Underread via Metalink URL Parsing", "source": {"discovery": "UNKNOWN"}, "credits": [{"lang": "en", "type": "finder", "value": "Tristan Madani"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.7, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}, {"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"repo": "https://gitlab.com/gnuwget/wget", "vendor": "gnuwget", "product": "wget", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "1.25.0"}, {"status": "unaffected", "version": "37a40fcb450153f69537c7cbc2a7a4fb0b6f7826", "versionType": "git"}], "defaultStatus": "affected"}], "datePublic": "2026-06-29T00:00:00.000Z", "references": [{"url": "https://gitlab.com/gnuwget/wget/-/commit/37a40fcb450153f69537c7cbc2a7a4fb0b6f7826", "name": "Fix Commit", "tags": ["patch"]}, {"url": "https://www.vulncheck.com/advisories/gnu-wget-heap-buffer-underread-via-metalink-url-parsing", "tags": ["third-party-advisory"]}], "x_generator": {"engine": "vulncheck"}, "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-125", "description": "Out-of-bounds Read"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:gnu:wget:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndIncluding": "1.25.0"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-07-14T22:03:10.940Z"}}}, "cveMetadata": {"cveId": "CVE-2026-58469", "state": "PUBLISHED", "dateUpdated": "2026-07-14T22:03:10.940Z", "dateReserved": "2026-06-30T20:20:33.790Z", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "datePublished": "2026-07-07T19:43:34.767Z", "assignerShortName": "VulnCheck"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "affected", "product": "wget", "repo": "https://gitlab.com/gnuwget/wget", "vendor": "gnuwget", "versions": [{"lessThanOrEqual": "1.25.0", "status": "affected", "version": "0", "versionType": "semver"}, {"status": "unaffected", "version": "37a40fcb450153f69537c7cbc2a7a4fb0b6f7826", "versionType": "git"}]}], "source": "disclosure@vulncheck.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:gnu:wget:*:*:*:*:*:*:*:*", "matchCriteriaId": "45E64942-BAA4-406A-9C9E-0624B2975957", "versionEndIncluding": "1.25.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "GNU Wget hasta 1.25.0, corregido en el commit 37a40fc, contiene una vulnerabilidad de lectura por debajo del l\u00edmite del b\u00fafer de pila en la funci\u00f3n clean_metalink_string() dentro de src/metalink.c que permite a un servidor malicioso activar corrupci\u00f3n de memoria al servir un documento Metalink que contiene una URL que solo tiene espacios en blanco. Los atacantes pueden hacer que la funci\u00f3n decremente un puntero m\u00e1s all\u00e1 del inicio del b\u00fafer al procesar una URL Metalink que solo contiene espacios en blanco, lo que podr\u00eda llevar a un comportamiento an\u00f3malo del programa."}], "id": "CVE-2026-58469", "lastModified": "2026-10-25T20:10:00.147", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-58469", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-08T13:36:30.807990Z", "version": "2.0.3"}}]}, "published": "2026-07-07T21:17:28.383", "references": [{"source": "disclosure@vulncheck.com", "tags": ["Patch"], "url": "https://gitlab.com/gnuwget/wget/-/commit/37a40fcb450153f69537c7cbc2a7a4fb0b6f7826"}, {"source": "disclosure@vulncheck.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://www.vulncheck.com/advisories/gnu-wget-heap-buffer-underread-via-metalink-url-parsing"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

{"bugzilla": {"description": "wget: GNU Wget: Memory corruption via crafted Metalink URL", "id": "2497838", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2497838"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "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.", "A flaw was found in GNU Wget. A malicious server could exploit a heap buffer underread vulnerability by providing a specially crafted Metalink document containing a URL with only whitespace characters. This could lead to memory corruption and abnormal program behavior, potentially causing a denial of service."], "mitigation": {"lang": "en:us", "value": "Avoid using Wget's Metalink options (--input-metalink and --metalink-over-http) when downloading from untrusted or unverified servers. Since Metalink processing must be explicitly requested, omitting these options avoids the vulnerable code path entirely."}, "name": "CVE-2026-58469", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "wget", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "wget", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "wget", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "impact": "moderate", "package_name": "wget", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "wget", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-07T19:43:34Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-58469\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-58469\nhttps://gitlab.com/gnuwget/wget/-/commit/37a40fcb450153f69537c7cbc2a7a4fb0b6f7826\nhttps://www.vulncheck.com/advisories/gnu-wget-heap-buffer-underread-via-metalink-url-parsing"], "statement": "Moderate: A heap-buffer-underread in GNU Wget's clean_metalink_string() function, affecting Red Hat Enterprise Linux 8, can be triggered when wget processes a specially crafted Metalink document containing a resource URL consisting only of whitespace characters. This code path is only reachable when Wget's Metalink support is explicitly requested via --input-metalink or --metalink-over-http; it is not exercised during ordinary downloads. Successful exploitation requires a user to invoke Wget's Metalink handling against an attacker-controlled or compromised server. The out-of-bounds byte is read only to decide whether to continue a trim loop and is never returned, logged, or written -- the practical impact is limited to a crash of the wget process (denial of service), not memory corruption or code execution.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.25.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "code_commit", "value": "37a40fcb450153f69537c7cbc2a7a4fb0b6f7826"}}], "enrichment": {"confidence": 86.0, "confidence_source": "matching", "scores": [{"score": 86.0, "source": "matching"}]}, "original": {"product": "wget", "source": "cna", "vendor": "gnuwget"}, "product": "wget", "vendor": "wget"}], "created": "2026-07-08T04:30:05.671983+00:00", "updated": "2026-08-01T17:30:07.722001+00:00", "vendors": ["wget", "wget$PRODUCT$wget"]}