{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-49812", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2025-06-11T09:36:54.723Z", "datePublished": "2025-07-10T16:58:23.943Z", "dateUpdated": "2025-07-10T16:58:23.943Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Apache HTTP Server", "vendor": "Apache Software Foundation", "versions": [{"lessThanOrEqual": "2.4.63", "status": "affected", "version": "0", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Robert Merget (Technology Innovation Institute)"}, {"lang": "en", "type": "finder", "value": "Nurullah Erinola (Ruhr University Bochum)"}, {"lang": "en", "type": "finder", "value": "Marcel Maehren (Ruhr University Bochum)"}, {"lang": "en", "type": "finder", "value": "Lukas Knittel (Ruhr University Bochum)"}, {"lang": "en", "type": "finder", "value": "Sven Hebrok (Paderborn University)"}, {"lang": "en", "type": "finder", "value": "Marcus Brinkmann (Ruhr University Bochum)"}, {"lang": "en", "type": "finder", "value": "Juraj Somorovsky (Paderborn University)"}, {"lang": "en", "type": "finder", "value": "J\u00f6rg Schwenk (Ruhr University Bochum)"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "In some mod_ssl configurations on Apache HTTP Server versions through to 2.4.63, an HTTP desynchronisation attack allows a man-in-the-middle attacker to hijack an HTTP session via a TLS upgrade.<br><br>Only configurations using \"SSLEngine optional\" to enable TLS upgrades are affected. Users are recommended to upgrade to version 2.4.64, which removes support for TLS upgrade."}], "value": "In some mod_ssl configurations on Apache HTTP Server versions through to 2.4.63, an HTTP desynchronisation attack allows a man-in-the-middle attacker to hijack an HTTP session via a TLS upgrade.\n\nOnly configurations using \"SSLEngine optional\" to enable TLS upgrades are affected. Users are recommended to upgrade to version 2.4.64, which removes support for TLS upgrade."}], "metrics": [{"other": {"content": {"text": "moderate"}, "type": "Textual description of severity"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-287", "description": "CWE-287 Improper Authentication", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2025-07-10T16:58:23.943Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://httpd.apache.org/security/vulnerabilities_24.html"}], "source": {"discovery": "UNKNOWN"}, "timeline": [{"lang": "en", "time": "2025-04-22T07:26:00.000Z", "value": "Report received"}, {"lang": "en", "time": "2025-07-07T00:00:00.000Z", "value": "2.4.x revision 1927045"}], "title": "Apache HTTP Server: mod_ssl TLS upgrade attack", "x_generator": {"engine": "Vulnogram 0.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In some mod_ssl configurations on Apache HTTP Server versions through to 2.4.63, an HTTP desynchronisation attack allows a man-in-the-middle attacker to hijack an HTTP session via a TLS upgrade.\n\nOnly configurations using \"SSLEngine optional\" to enable TLS upgrades are affected. Users are recommended to upgrade to version 2.4.64, which removes support for TLS upgrade."}], "id": "CVE-2025-49812", "lastModified": "2025-07-10T17:15:48.193", "metrics": {}, "published": "2025-07-10T17:15:48.193", "references": [{"source": "[email protected]", "url": "https://httpd.apache.org/security/vulnerabilities_24.html"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}], "source": "[email protected]", "type": "Primary"}]}

{}