CVE-2026-14741

{"id": "CVE-2026-14741", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-14741", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-12T18:47:05.416355Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"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"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "affectedData": [{"repo": "https://github.com/libwww-perl/HTTP-Date", "vendor": "OALDERS", "product": "HTTP::Date", "versions": [{"status": "affected", "version": "0", "lessThan": "6.08", "versionType": "custom"}], "packageName": "HTTP-Date", "programFiles": ["lib/HTTP/Date.pm"], "collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "programRoutines": [{"name": "HTTP::Date::parse_date"}, {"name": "HTTP::Date::str2time"}]}]}], "published": "2026-07-17T16:17:13.443", "references": [{"url": "https://github.com/libwww-perl/HTTP-Date/commit/78c20952cdfbf11e03cf1199ad70f13298a84c5c.patch", "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}, {"url": "https://github.com/libwww-perl/HTTP-Date/pull/33", "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}, {"url": "https://metacpan.org/release/OALDERS/HTTP-Date-6.08/changes", "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}, {"url": "http://www.openwall.com/lists/oss-security/2026/07/17/10", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "description": [{"lang": "en", "value": "CWE-1333"}]}], "descriptions": [{"lang": "en", "value": "HTTP::Date versions before 6.08 for Perl allow CPU exhaustion via polynomial regex backtracking in parse_date.\n\nparse_date() matches the date string against a chain of alternative regexes, and str2time() delegates to it. Several of these patterns place unbounded quantifiers next to each other before a trailing `\\s*$` anchor. A valid date prefix followed by a long interior run of digits, letters, or whitespace and a single trailing byte that defeats the final match forces the engine to repartition the run, giving polynomial (about quadratic) backtracking. A header value of a few tens of kilobytes runs for tens of seconds of CPU.\n\nHTTP::Date parses timestamps such as HTTP `Date`, `Expires`, and `Last-Modified` headers, which commonly originate from untrusted sources. Any caller that passes an untrusted date header to str2time() or parse_date() can be driven to consume unbounded CPU, a denial of service."}, {"lang": "es", "value": "Las versiones de HTTP::Date anteriores a la 6.08 para Perl permiten el agotamiento de la CPU a trav\u00e9s de retroceso de expresiones regulares polin\u00f3mico en parse_date.\n\nparse_date() compara la cadena de fecha con una cadena de expresiones regulares alternativas, y str2time() le delega. Varios de estos patrones colocan cuantificadores ilimitados uno al lado del otro antes de un ancla final \u2019\\s$\u2019. Un prefijo de fecha v\u00e1lido seguido de una larga secuencia interna de d\u00edgitos, letras o espacios en blanco y un \u00fanico byte final que anula la coincidencia final obliga al motor a reparticionar la secuencia, lo que produce un retroceso polin\u00f3mico (aproximadamente cuadr\u00e1tico). Un valor de encabezado de unas pocas decenas de kilobytes se ejecuta durante decenas de segundos de CPU.\n\nHTTP::Date analiza marcas de tiempo como los encabezados HTTP \u2019Date\u2019, \u2019Expires\u2019 y \u2019Last-Modified\u2019, que com\u00fanmente se originan de fuentes no confiables. Cualquier llamador que pase un encabezado de fecha no confiable a str2time() o parse_date() puede ser llevado a consumir CPU ilimitada, una denegaci\u00f3n de servicio."}], "lastModified": "2026-10-24T20:10:00.137", "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}