Privilege or state-machine bypass via skipped constraints
Published Sep 1, 2026 · Updated Sep 1, 2026
Improper input validation in Ash Framework AshTypescript 0.15.0 through 0.17.x allows remote attackers to submit forbidden route values. AshTypescript.TypedController.RequestHandler calls Ash.Type.cast_input/3 but skips Ash.Type.apply_constraints/3, leaving allowlists, bounds, pattern checks, and empty-string normalization unenforced. Exploitation requires an HTTP-exposed typed-controller route whose declared constraint governs behavior; forbidden values can then bypass a role or state transition.
Summary
What happened
Improper input validation in Ash Framework AshTypescript 0.15.0 through 0.17.x allows remote attackers to submit forbidden route values. AshTypescript.TypedController.RequestHandler calls Ash.Type.cast_input/3 but skips Ash.Type.apply_constraints/3, leaving allowlists, bounds, pattern checks, and empty-string normalization unenforced. Exploitation requires an HTTP-exposed typed-controller route whose declared constraint governs behavior; forbidden values can then bypass a role or state transition.
The record
- CVE
- CVE-2026-82732
- Published
- Sep 1, 2026
- Updated
- Sep 1, 2026
- Vendor
- Ash Framework
- Product
- AshTypescript
- Classifications
- CWE-20, T1190
- Attack vector
- network
- 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
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0.15.0 <0.18.0
- Affected versionversion=546a15e1a2d7dbf1df2d5a6ee4404bc3da87852e <21ab6f1229a4dccdb56bc37ed437d9672a0c4a4e
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.
Public exploit references
- Upstream typed-controller constraint-bypass proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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