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CVE-2026-82734: CWE-1284 Improper Validation of Specified Quantity in Input in ash-project ash

0
Low
VulnerabilityCVE-2026-82734cvecve-2026-82734cwe-1284
Published: 09/01/2026 (09/01/2026, 03:17:15 UTC)
Source: CVE Database V5
Vendor/Project: ash-project
Product: ash

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. Ash.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. This issue affects ash: from 1.28.0 before 3.32.2.

CVSS v4.0

Score 2.1low

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
None
User Interaction
None
Vuln. Confidentiality
None
Vuln. Integrity
Low
Vuln. Availability
Low
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
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

Affected software

ash
pkg:hex/ash
Affected versions
>=1.28.0 <3.32.2
GitHub Actionsmore threats →cve
ash-project/ash
pkg:github/ash-project/ash
CPE configurations
cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

Technical Details

Data Version
5.2
Assigner Short Name
EEF
Date Reserved
2026-08-31T00:59:10.001Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a964897acd9273b49296a81

Added to database: 09/01/2026, 03:37:59 UTC

Last updated: 09/01/2026, 04:22:32 UTC

Views: 5

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