{"cve":"CVE-2026-82734","nvd":{"published":"2026-09-01T04:18:02.600","modified":"2026-09-01T21:15:00.147","status":"Deferred","description":"Improper Validation of Specified Quantity in Input vulnerability in ash-project ash allows an attacker to submit a non-finite decimal value that bypasses numeric bounds constraints or fails later operations on the value.\n\nAsh.Type.Decimal cast input through Ecto's decimal cast in cast_input/2 and cast_stored/2 (lib/ash/type/decimal.ex) without checking that the resulting value is finite. Elixir's Decimal represents Infinity and NaN as valid structs, so a value such as \"Infinity\" or \"NaN\" passed casting and was persisted. Because NaN compares as false against every bound, min and max constraints do not reject it, and the stored special value later raises when used in Decimal arithmetic or is refused by the data layer, failing subsequent requests. The fix rejects any non-finite Decimal during casting.\n\nThis issue affects ash: from 1.28.0 before 3.32.2.","cvss_v4":{"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","score":2.1},"cvss_v3":null,"cwes":["CWE-1284"],"references":["https://cna.erlef.org/cves/CVE-2026-82734.html","https://github.com/ash-project/ash/commit/818087b1b3364f2af6f5460d6b01262ad0f69204","https://github.com/ash-project/ash/security/advisories/GHSA-mvvh-q33h-q62v","https://osv.dev/vulnerability/EEF-CVE-2026-82734","https://github.com/ash-project/ash/security/advisories/GHSA-mvvh-q33h-q62v"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:50.842544443+00:00"},"epss":{"cve":"CVE-2026-82734","score":0.00189,"percentile":0.0855,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}