{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43951", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-05-04T17:15:44.253Z", "datePublished": "2026-06-08T15:16:14.594Z", "dateUpdated": "2026-06-08T15:16:14.594Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Apache HTTP Server", "vendor": "Apache Software Foundation", "versions": [{"lessThanOrEqual": "2.4.67", "status": "affected", "version": "2.4.0", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Zhenpeng (Leo) Lin at depthfirst"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Out-of-bounds Read vulnerability in Apache HTTP Server with mod_headers and mod_mime and multiple response languages.</p><p>This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67."}], "value": "Out-of-bounds Read vulnerability in Apache HTTP Server with mod_headers and mod_mime and multiple response languages.\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.67."}], "metrics": [{"other": {"content": {"text": "moderate"}, "type": "Textual description of severity"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-06-08T15:16:14.594Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://httpd.apache.org/security/vulnerabilities_24.html"}], "source": {"discovery": "UNKNOWN"}, "timeline": [{"lang": "en", "time": "2026-04-27T12:00:00.000Z", "value": "reported"}, {"lang": "en", "time": "2026-06-05T12:00:00.000Z", "value": "fixed in 2.4.x by r1935006"}, {"lang": "eng", "time": "2026-06-08T12:00:00.000Z", "value": "2.4.68 released"}], "title": "Apache HTTP Server: OOB Read in `merge_response_headers` can cause crash", "x_generator": {"engine": "Vulnogram 0.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Out-of-bounds Read vulnerability in Apache HTTP Server with mod_headers and mod_mime and multiple response languages.\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.67."}], "id": "CVE-2026-43951", "lastModified": "2026-06-08T16:16:40.087", "metrics": {}, "published": "2026-06-08T16:16:40.087", "references": [{"source": "security@apache.org", "url": "https://httpd.apache.org/security/vulnerabilities_24.html"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "security@apache.org", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2.4.0,2.4.67]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Apache HTTP Server", "source": "cna", "vendor": "Apache Software Foundation"}, "product": "http_server", "vendor": "apache"}], "created": "2026-06-08T16:30:06.603917+00:00", "updated": "2026-06-08T17:00:15.635054+00:00", "vendors": ["apache", "apache$PRODUCT$http_server"]}