CVE-2026-78038

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Source
https://cve.org/CVERecord?id=CVE-2026-78038
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-78038.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-78038
Aliases
Published
2026-08-30T11:50:21.136Z
Modified
2026-08-31T03:45:39.099394195Z
Severity
  • 5.9 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Job argument injection via :args overrides primary_key and tenant in AshOban
Details

Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in ash-project ashoban allows a user whose input reaches the :args option of AshOban.buildtrigger/3 to retarget an update or destroy trigger at another record, including across tenants.

buildtrigger/3 builds the trusted job arguments with atom keys (:primarykey, :tenant, :action_arguments) and merges the caller's :args underneath so the trusted values win on collision. Because Oban job arguments round-trip through JSON, the caller's keys arrive as strings, so Map.merge sees no collision and both keys survive. When the job is persisted the JSON object is de-duplicated keeping the last (string) key, and the worker reads the caller's value. The documentation describes :args as unable to affect the action, so an application that forwards user input into it for uniqueness scoping is exposed to authorization bypass and tenant isolation breaks.

This issue affects ash_oban: from 0.2.5 before 0.8.14.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78038.json",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "ce079229ecdf0d323da2b554f30fc569e54660f0"
                },
                {
                    "fixed": "da2d81e1e8e1dcc3e6ec8587cdb4f273575ffca3"
                }
            ]
        }
    ],
    "cwe_ids": [
        "CWE-915"
    ],
    "cna_assigner": "EEF"
}
References

Affected packages

Git / github.com/ash-project/ash_oban

Affected ranges

Type
GIT
Repo
https://github.com/ash-project/ash_oban
Events
Introduced
28e57b95c241c0aeece4655456c614b417fadce0
Fixed
d918a299d73ac9f0d85e55b8533ddb4801a3af2d
Database specific
Show details 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0.2.5"
        },
        {
            "fixed": "0.8.14"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-78038.json"