Sensitive data disclosure via echoed handler returns
Published Sep 1, 2026 · Updated Sep 1, 2026
Information disclosure in AshTypescript 0.15.0 through 0.17.3 allows remote attackers to read internal data from HTTP 500 responses. In typed-controller request_handler.ex, dispatch/3 sends a non-Plug.Conn return to unexpected_return/2, which interpolates inspect(value, limit: 50) into the response. Exploitation requires an exposed typed-controller route whose handler returns a sensitive non-Plug.Conn term; the response can reveal credentials, tokens, or tenant identifiers.
Summary
What happened
Information disclosure in AshTypescript 0.15.0 through 0.17.3 allows remote attackers to read internal data from HTTP 500 responses. In typed-controller request_handler.ex, dispatch/3 sends a non-Plug.Conn return to unexpected_return/2, which interpolates inspect(value, limit: 50) into the response. Exploitation requires an exposed typed-controller route whose handler returns a sensitive non-Plug.Conn term; the response can reveal credentials, tokens, or tenant identifiers.
The record
- CVE
- CVE-2026-82733
- Published
- Sep 1, 2026
- Updated
- Sep 1, 2026
- Vendor
- Ash Framework
- Product
- AshTypescript
- Classifications
- CWE-209, 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 <dec80e29543f96e43eeece8501376562f17ac638
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
- GHSA-ghhw-qh7p-55xr proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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