CVE-2026-82367

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Source
https://cve.org/CVERecord?id=CVE-2026-82367
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82367.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-82367
Aliases
Published
2026-08-30T18:17:13.538Z
Modified
2026-09-02T03:30:46.208308909Z
Severity
  • 2.3 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Re-entrant synchronous publish in AshGraphql subscription batcher delivers one subscriber's records to another's topic
Details

Exposure of Data Element to Wrong Session vulnerability in ash-project ash_graphql can deliver one subscription's resolved records to a different subscriber's topic.

AshGraphql.Subscription.Batcher.dosend/5 reads the resolved batch from the process dictionary via Process.get(:batchresolved) and then unconditionally deletes it. That is sound only inside a task the library owns. On the :backpressuresync and :noproc fallbacks dosend/5 runs inline in the publishing caller's process, so if a resolver inside an outer dosend/5 triggers another synchronous Ash notification, the inner call finds the outer run's value still under :batchresolved, adopts it as its own result, and publishes it to the inner topic, a different subscription document with a different actor and tenant. It then deletes the key, so the outer run publishes nothing. The key is not namespaced by run, so records cannot be told apart. The fix saves, clears, and restores :batch_resolved around each run.

This issue affects ash_graphql: from 1.4.0 before 1.11.0.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82367.json",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "3cb2c9870d050c7c4bba6c211aaed97d732f7e81"
                },
                {
                    "fixed": "b798ef5288664a0261990b19765558f168b718fb"
                }
            ]
        }
    ],
    "cna_assigner": "EEF",
    "cwe_ids": [
        "CWE-488"
    ]
}
References

Affected packages

Git / github.com/ash-project/ash_graphql

Affected ranges

Type
GIT
Repo
https://github.com/ash-project/ash_graphql
Events
Introduced
cb2296922d48705a7bbabd92daa1ec240cab1e66
Fixed
4e2c5476ecfd2c701488627ee46e6eefc58c982e
Fixed
b798ef5288664a0261990b19765558f168b718fb
Database specific
Show details 
{
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "1.4.0"
        },
        {
            "fixed": "1.11.0"
        }
    ]
}

Affected versions

v1.*
v1.10.0
v1.10.1
v1.4.0
v1.4.1
v1.4.2
v1.4.3
v1.4.4
v1.4.6
v1.4.7
v1.5.0
v1.5.1
v1.6.0
v1.7.0
v1.7.1
v1.7.10
v1.7.11
v1.7.12
v1.7.13
v1.7.14
v1.7.15
v1.7.16
v1.7.17
v1.7.2
v1.7.3
v1.7.4
v1.7.5
v1.7.6
v1.7.7
v1.7.8
v1.7.9
v1.8.0
v1.8.1
v1.8.2
v1.8.3
v1.8.4
v1.8.5
v1.9.0
v1.9.1
v1.9.2
v1.9.3
v1.9.4

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82367.json"