Stored-vector corruption via wrapped dimension header
Published Sep 1, 2026 · Updated Sep 1, 2026
Integer overflow in Ash 2.14.13 through 3.32.1 allows attackers to corrupt stored vectors and crash later reads via oversized lists. Ash.Vector.new/1 packs a list's element count into a 16-bit dimension field without range validation, so counts above 65,535 wrap and disagree with the encoded float payload. Applications that accept an oversized vector can store malformed data whose later decoding in from_binary/1 raises, denying access to the affected record.
Summary
What happened
Integer overflow in Ash 2.14.13 through 3.32.1 allows attackers to corrupt stored vectors and crash later reads via oversized lists. Ash.Vector.new/1 packs a list's element count into a 16-bit dimension field without range validation, so counts above 65,535 wrap and disagree with the encoded float payload. Applications that accept an oversized vector can store malformed data whose later decoding in from_binary/1 raises, denying access to the affected record.
The record
- CVE
- CVE-2026-82737
- Published
- Sep 1, 2026
- Updated
- Sep 1, 2026
- Vendor
- Ash Framework
- Product
- Ash
- Classifications
- CWE-190, CAPEC-92, T1499.004
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 1, 2026CVE publishedPublication date reported by the CVE source.
- Sep 1, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=2.14.13 <3.32.2
- Affected versionversion=e2855843ca4a9141dcd7f40f47227e13b43f0e00 <cef5eb7b0693f04d1699a36e02a4e09ce1e7bffe
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- GitHub Security Advisory reproductionproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo