{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2026-26747", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-02-20T16:43:05.241Z", "dateReserved": "2026-02-16T00:00:00.000Z", "datePublished": "2026-02-20T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-02-20T16:43:05.241Z"}, "descriptions": [{"lang": "en", "value": "A Host Header Poisoning vulnerability exists in Monica 4.1.2 due to improper handling of the HTTP Host header in app/Providers/AppServiceProvider.php, combined with the default misconfiguration where the \"app.force_url\" is not set and default is \"false\". The application generates absolute URLs (such as those used in password reset emails) using the user-supplied Host header. This allows remote attackers to poison the password reset link sent to a victim,"}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://github.com/monicahq/monica"}, {"url": "https://github.com/hungnqdz/cve-research/blob/main/CVE-2026-26747.md"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}}, "dataVersion": "5.2"}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "A Host Header Poisoning vulnerability exists in Monica 4.1.2 due to improper handling of the HTTP Host header in app/Providers/AppServiceProvider.php, combined with the default misconfiguration where the \"app.force_url\" is not set and default is \"false\". The application generates absolute URLs (such as those used in password reset emails) using the user-supplied Host header. This allows remote attackers to poison the password reset link sent to a victim,"}], "id": "CVE-2026-26747", "lastModified": "2026-02-20T18:57:15.973", "metrics": {}, "published": "2026-02-20T17:25:56.023", "references": [{"source": "cve@mitre.org", "url": "https://github.com/hungnqdz/cve-research/blob/main/CVE-2026-26747.md"}, {"source": "cve@mitre.org", "url": "https://github.com/monicahq/monica"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Awaiting Analysis"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "4.1.2"}}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "monica", "vendor": "monicahq"}], "created": "2026-02-23T14:47:23.587963+00:00", "updated": "2026-02-23T14:47:23.588054+00:00", "vendors": ["monicahq", "monicahq$PRODUCT$monica"]}