{
   "document": {
      "category": "csaf_security_advisory",
      "csaf_version": "2.0",
      "distribution": {
         "tlp": {
            "label": "WHITE",
            "url": "https://www.first.org/tlp/"
         }
      },
      "lang": "en",
      "notes": [
         {
            "category": "description",
            "text": "HTTP::Date versions before 6.08 for Perl allow CPU exhaustion via polynomial regex backtracking in parse_date.  parse_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.  HTTP::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.",
            "title": "Vulnerability Description"
         }
      ],
      "publisher": {
         "category": "other",
         "contact_details": "gdt@cpan.org",
         "name": "giterlizzi",
         "namespace": "https://github.com/giterlizzi/"
      },
      "references": [
         {
            "category": "self",
            "summary": "CPANSA-HTTP-Date-2026-14741 JSON",
            "url": "https://raw.githubusercontent.com/giterlizzi/perl-CPANSA-CSAF/develop/csaf/white/2026/cpansa-http-date-2026-14741.json"
         },
         {
            "category": "external",
            "summary": "https://github.com/libwww-perl/HTTP-Date/commit/78c20952cdfbf11e03cf1199ad70f13298a84c5c.patch",
            "url": "https://github.com/libwww-perl/HTTP-Date/commit/78c20952cdfbf11e03cf1199ad70f13298a84c5c.patch"
         },
         {
            "category": "external",
            "summary": "https://github.com/libwww-perl/HTTP-Date/pull/33",
            "url": "https://github.com/libwww-perl/HTTP-Date/pull/33"
         },
         {
            "category": "external",
            "summary": "https://metacpan.org/release/OALDERS/HTTP-Date-6.08/changes",
            "url": "https://metacpan.org/release/OALDERS/HTTP-Date-6.08/changes"
         },
         {
            "category": "external",
            "summary": "http://www.openwall.com/lists/oss-security/2026/07/17/10",
            "url": "http://www.openwall.com/lists/oss-security/2026/07/17/10"
         },
         {
            "category": "external",
            "summary": "CVE-2026-14741 (NVD)",
            "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14741"
         }
      ],
      "title": "HTTP-Date vulnerability",
      "tracking": {
         "current_release_date": "2026-07-17T00:00:00",
         "generator": {
            "engine": {
               "name": "CSAF Perl Toolkit",
               "version": "0.26"
            }
         },
         "id": "CPANSA-HTTP-Date-2026-14741",
         "initial_release_date": "2026-07-17T00:00:00",
         "revision_history": [
            {
               "date": "2026-07-17T00:00:00",
               "number": "1",
               "summary": "First release"
            }
         ],
         "status": "final",
         "version": "1"
      }
   },
   "product_tree": {
      "branches": [
         {
            "branches": [
               {
                  "category": "product_version_range",
                  "name": "vers:cpan/<6.08",
                  "product": {
                     "name": "HTTP-Date less than 6.08",
                     "product_id": "CSAFPID-0001",
                     "product_identification_helper": {
                        "purl": "pkg:cpan/HTTP-Date"
                     }
                  }
               },
               {
                  "category": "product_version_range",
                  "name": "vers:cpan/>=6.08",
                  "product": {
                     "name": "HTTP-Date greater than or equal 6.08",
                     "product_id": "CSAFPID-0002",
                     "product_identification_helper": {
                        "purl": "pkg:cpan/HTTP-Date"
                     }
                  }
               }
            ],
            "category": "product_name",
            "name": "HTTP-Date"
         }
      ]
   },
   "vulnerabilities": [
      {
         "cve": "CVE-2026-14741",
         "cwe": {
            "id": "CWE-1333",
            "name": "Inefficient Regular Expression Complexity"
         },
         "notes": [
            {
               "category": "description",
               "text": "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.",
               "title": "Vulnerability Description"
            }
         ],
         "product_status": {
            "fixed": [
               "CSAFPID-0002"
            ],
            "known_affected": [
               "CSAFPID-0001"
            ]
         }
      }
   ]
}