{"api_version":"1","generated_at":"2026-11-07T15:53:30+00:00","cve":"CVE-2026-123776","urls":{"html":"https://cve.report/CVE-2026-123776","api":"https://cve.report/api/cve/CVE-2026-123776.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-123776","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-123776"},"summary":{"title":"RRD::CGI::Image versions through 0.01 for Perl pass CGI query parameters containting \"tz\" to tzset(), , so a FIFO or device path blocks the CGI process","description":"RRD::CGI::Image versions through 0.01 for Perl pass CGI query parameters containting \"tz\" to tzset(), , so a FIFO or device path blocks the CGI process.\n\nThe normalize_params method sends any query key matching /tz/i to tz(), which sets $ENV{TZ} to that value, with no validation. It then calls tzset(). glibc treats a TZ value starting with / or : as a file path and opens it, so a value naming a FIFO or a blocking device stalls the process inside tzset().","state":"PUBLISHED","assigner":"CPANSec","published_at":"2026-11-07 12:17:46","updated_at":"2026-11-07 12:17:46"},"problem_types":["CWE-1287","CWE-1287 CWE-1287 Improper Validation of Specified Type of Input"],"metrics":[],"references":[{"url":"https://rt.cpan.org/Ticket/Display.html?id=182627","name":"https://rt.cpan.org/Ticket/Display.html?id=182627","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://security.metacpan.org/patches/R/RRD-CGI-Image/0.01/CVE-2026-123776-r1.patch","name":"https://security.metacpan.org/patches/R/RRD-CGI-Image/0.01/CVE-2026-123776-r1.patch","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://man7.org/linux/man-pages/man3/tzset.3.html","name":"https://man7.org/linux/man-pages/man3/tzset.3.html","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-123776","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123776","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[{"source":"CNA","title":"","value":"Apply the patch.","time":"","lang":"en"}],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"collectionURL":"https://cpan.org/modules","defaultStatus":"unaffected","modules":["RRD::CGI::Image"],"packageName":"RRD-CGI-Image","packageURL":"pkg:cpan/RRD-CGI-Image","programFiles":["lib/RRD/CGI/Image.pm"],"programRoutines":[{"name":"RRD::CGI::Image::normalize_params"}],"versions":[{"lessThanOrEqual":"0.01","status":"affected","version":"0","versionType":"custom"}]}],"descriptions":[{"lang":"en","value":"RRD::CGI::Image versions through 0.01 for Perl pass CGI query parameters containting \"tz\" to tzset(), , so a FIFO or device path blocks the CGI process.\n\nThe normalize_params method sends any query key matching /tz/i to tz(), which sets $ENV{TZ} to that value, with no validation. It then calls tzset(). glibc treats a TZ value starting with / or : as a file path and opens it, so a value naming a FIFO or a blocking device stalls the process inside tzset()."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1287","description":"CWE-1287 Improper Validation of Specified Type of Input","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-11-07T11:51:18.541Z","orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","shortName":"CPANSec"},"references":[{"tags":["vendor-advisory","issue-tracking","patch"],"url":"https://rt.cpan.org/Ticket/Display.html?id=182627"},{"tags":["technical-description"],"url":"https://man7.org/linux/man-pages/man3/tzset.3.html"},{"tags":["patch"],"url":"https://security.metacpan.org/patches/R/RRD-CGI-Image/0.01/CVE-2026-123776-r1.patch"}],"solutions":[{"lang":"en","value":"Apply the patch."}],"source":{"discovery":"UNKNOWN"},"title":"RRD::CGI::Image versions through 0.01 for Perl pass CGI query parameters containting \"tz\" to tzset(), , so a FIFO or device path blocks the CGI process","x_generator":{"engine":"cpansec-cna-tool 0.1"}}},"cveMetadata":{"assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","assignerShortName":"CPANSec","cveId":"CVE-2026-123776","datePublished":"2026-11-07T11:51:18.541Z","dateReserved":"2026-11-06T14:15:29.328Z","dateUpdated":"2026-11-07T11:51:18.541Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-11-07 12:17:46","lastModifiedDate":"2026-11-07 12:17:46","problem_types":["CWE-1287","CWE-1287 CWE-1287 Improper Validation of Specified Type of Input"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"123776","Ordinal":"1","Title":"RRD::CGI::Image versions through 0.01 for Perl pass CGI query pa","CVE":"CVE-2026-123776","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"123776","Ordinal":"1","NoteData":"RRD::CGI::Image versions through 0.01 for Perl pass CGI query parameters containting \"tz\" to tzset(), , so a FIFO or device path blocks the CGI process.\n\nThe normalize_params method sends any query key matching /tz/i to tz(), which sets $ENV{TZ} to that value, with no validation. It then calls tzset(). glibc treats a TZ value starting with / or : as a file path and opens it, so a value naming a FIFO or a blocking device stalls the process inside tzset().","Type":"Description","Title":"RRD::CGI::Image versions through 0.01 for Perl pass CGI query pa"}]}}}