CVE-2026-82733

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Source
https://cve.org/CVERecord?id=CVE-2026-82733
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82733.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-82733
Aliases
Published
2026-09-01T02:09:22.784Z
Modified
2026-09-02T03:47:32.225470443Z
Severity
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Route handler return value echoed into AshTypescript error response
Details

Generation of Error Message Containing Sensitive Information vulnerability in ash-project ash_typescript allows an unauthenticated attacker to read internal application data from an HTTP 500 response body.

When a typed-controller route handler returns anything other than a %Plug.Conn{}, dispatch/3 in lib/ashtypescript/typedcontroller/requesthandler.ex passes the value to unexpectedreturn/2, which interpolates inspect(value, limit: 50) directly into the response message. The limit option bounds elements per collection rather than the term as a whole, so a handler falling through with a term such as {:error, %User{}} or a changeset serialises its full field set, including hashed passwords, tokens, and tenant identifiers, into the JSON error returned to the caller.

This contradicts the module's own posture elsewhere: the rescue clause gates Exception.message/1 behind AshTypescript.typedcontrollershowraisederrors?/0 and otherwise returns a generic message, while this path is ungated and always echoes.

This issue affects ash_typescript: from 0.15.0 before 0.18.0.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82733.json",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "546a15e1a2d7dbf1df2d5a6ee4404bc3da87852e"
                },
                {
                    "fixed": "dec80e29543f96e43eeece8501376562f17ac638"
                }
            ]
        }
    ],
    "cna_assigner": "EEF",
    "cwe_ids": [
        "CWE-209"
    ]
}
References

Affected packages

Git / github.com/ash-project/ash_typescript

Affected ranges

Type
GIT
Repo
https://github.com/ash-project/ash_typescript
Events
Introduced
fb4cc367b85b68d90b99be692dcbbbfc248c1adb
Fixed
808e4b17ee821a8dac98bda5bf01da0fe1b69d41
Fixed
dec80e29543f96e43eeece8501376562f17ac638
Database specific
Show details 
{
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0.15.0"
        },
        {
            "fixed": "0.18.0"
        }
    ]
}

Affected versions

v0.*
v0.15.0
v0.15.1
v0.15.2
v0.15.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82733.json"