CVE-2026-86766

Katalog CVE

CVSS 6.5 · Medium EPSS 0,35%

Kerentanan Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') pada snipeitapp snipe-it. Skor CVSS 3.1 6.5 (Medium) menurut vulncheck.com.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

9 September 2026

Terakhir diubah

16 September 2026

Status NVD

Analyzed

CVSS 3.1

6.5 (Medium), sumber vulncheck.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

EPSS (30 hari)

0,35% peluang dieksploitasi; lebih tinggi dari 26,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/grokability/snipe-it/security/advisories/GHSA-x4g2-87xc-m5jm exploit · advisory vendor
• https://github.com/grokability/snipe-it/commit/f71806b1e0efbd3bc2b6be61994ad2a5d5d6c206 patch
• https://www.vulncheck.com/advisories/snipe-it-8.6.3-race-condition-via-consumable-checkout advisory pihak ketiga