{"id":"CVE-2026-114426","aliases":["EUVD-2026-116796","GHSA-3hf5-9fwq-fwv2"],"status":"published","title":"Pre-authentication upload parsing permits resource exhaustion","description":"SEPPmail Secure Email Gateway before 15.1.1 processes and writes v1 file-interface upload data before authenticating the caller and without an absolute request-size limit. An unauthenticated remote attacker can occupy workers and consume temporary storage with concurrent or slow requests, causing service unavailability.","severity":{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00322,"percentile":0.25513,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400"],"published":"2026-11-04T08:33:13Z","modified":"2026-11-04T09:32:22Z","products":[{"vendor":"seppmail ag","product":"seppmail secure email gateway (seg)"}],"references":[{"url":"https://docs.seppmail.com/en/20_revision-history.html"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114426"},{"url":"https://github.com/advisories/GHSA-3hf5-9fwq-fwv2"}],"sources":{"cve":[{"id":"CVE-2026-114426","title":"Pre-authentication upload parsing permits resource exhaustion","description":"SEPPmail Secure Email Gateway before 15.1.1 processes and writes v1 file-interface upload data before authenticating the caller and without an absolute request-size limit. An unauthenticated remote attacker can occupy workers and consume temporary storage with concurrent or slow requests, causing service unavailability.","status":"published","published":"2026-11-04T08:33:13.228Z","modified":"2026-11-09T21:19:00.551Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-400"],"updated_at":"2026-11-09T22:35:08.46461Z"}],"euvd":[{"id":"EUVD-2026-116796","description":"SEPPmail Secure Email Gateway before 15.1.1 processes and writes v1 file-interface upload data before authenticating the caller and without an absolute request-size limit. An unauthenticated remote attacker can occupy workers and consume temporary storage with concurrent or slow requests, causing service unavailability.","status":"published","published":"2026-11-04T08:33:13Z","modified":"2026-11-09T21:19:00Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-09T22:18:21.405141Z"}],"ghsa":[{"id":"GHSA-3hf5-9fwq-fwv2","title":"SEPPmail Secure Email Gateway before 15.1.1 processes and writes v1 file-interface upload data...","description":"SEPPmail Secure Email Gateway before 15.1.1 processes and writes v1 file-interface upload data before authenticating the caller and without an absolute request-size limit. An unauthenticated remote attacker can occupy workers and consume temporary storage with concurrent or slow requests, causing service unavailability.","status":"published","published":"2026-11-04T09:32:15Z","modified":"2026-11-04T09:32:22Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-04T10:01:04.949269Z"}],"nvd":[{"id":"CVE-2026-114426","description":"SEPPmail Secure Email Gateway before 15.1.1 processes and writes v1 file-interface upload data before authenticating the caller and without an absolute request-size limit. An unauthenticated remote attacker can occupy workers and consume temporary storage with concurrent or slow requests, causing service unavailability.","status":"published","published":"2026-11-04T09:17:41.97Z","modified":"2026-11-09T22:18:28.003Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"}],"cwes":["CWE-400"],"updated_at":"2026-11-09T23:16:04.854042Z"}]}}