Integer Overflow or Wraparound vulnerability in ash-project ash lets an attacker corrupt a stored vector and crash later reads of it by submitting a vector with more than 65,535 elements.
Ash.Vector.new/1 (lib/ash/vector.ex) encodes a vector as <<dim::unsigned-16, 0::unsigned-16>> followed by the element floats, packing the element count into a 16-bit field without checking its range. A list of more than 65,535 elements wraps the dimension modulo 65,536, so the encoded header records a dimension that disagrees with the number of stored floats. from_binary/1 later reads binary-size(dim)-unit(32) from the wrapped header, so every read of the corrupted value misparses and raises, denying access to the affected record. The fix rejects any vector whose dimension exceeds 65,535.
This issue affects ash: from 2.14.13 before 3.32.2.
CVSS
No CVSS.
References
Configurations
No configuration.
History
No history.
Information
Published : 2026-09-01 04:18
Updated : 2026-09-01 21:15
NVD link : CVE-2026-82737
Mitre link : CVE-2026-82737
CVE.ORG link : CVE-2026-82737
JSON object : View
Products Affected
No product.
CWE
CWE-190
Integer Overflow or Wraparound