CVE-2026-86766

See a problem?
Please try reporting it to the source first.

Source

https://cve.org/CVERecord?id=CVE-2026-86766

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-86766.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-86766

Aliases

GHSA-x4g2-87xc-m5jm

Published

2026-09-09T13:32:24Z

Modified

2026-09-11T03:48:43Z

Severity

7.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

Snipe-IT 8.6.3 Race Condition via Consumable Checkout

Details

Snipe-IT versions up to and including 8.6.3 contain a race condition (TOCTOU) in the consumable checkout API endpoint (POST /api/v1/consumables/{consumable_id}/checkout). The requested quantity is validated against the number of remaining units before the database transaction begins, and the transaction then creates the checkout records without locking the consumable row or re-checking availability. An authenticated user with permission to check out consumables can submit concurrent checkout requests for the same consumable so that both requests pass the availability check and succeed, over-allocating stock and driving the remaining inventory negative (e.g., a consumable with 1 remaining unit ends at -1 after two concurrent 1-unit checkouts). The issue is fixed in 8.7.0, which re-fetches the parent row under lockForUpdate inside the transaction and re-validates availability.

Database specific

{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-362"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86766.json"
}

References

Affected packages

Git / github.com/grokability/snipe-it

Affected ranges

Type

GIT

Repo

https://github.com/grokability/snipe-it

Events

Introduced

cfd1ff8413e478a8daab700c15e96c96f93220e2

Fixed

f71806b1e0efbd3bc2b6be61994ad2a5d5d6c206

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "8.6.3"
        },
        {
            "fixed": "8.7.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-86766.json"