CVE-2026-86766Medium· 6.5▾ TwilightPoC availableSnipe-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 remainin…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 35.8 · likelihood 0.1 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 11.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Exploit / PoC code exists
0.2%
Last analysed / modified upstream
0.2% → 0.3%
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.
snipe-it < 8.7.0Upgrade past the affected range:
snipe-it 8.7.0Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-86744Low· 2.2Snipe-IT 8.6.3 and earlier (and develop pre-release commits prior to the fix) contain a race condition in the asset checkout paths
CVE-2026-86765Medium· 6.5Snipe-IT versions before 8.7.0 fail to enforce checkout authorization when assignment fields are submitted to the asset update endpoint
CVE-2026-114064Medium· 5.5Snipe-IT before 8.7.0 SSRF Port Scanning via Webhook Testing Endpoint
CVE-2025-15602High· 8.8Snipe-IT versions prior to 8.3.7 contain sensitive user attributes related to account privileges that are insufficiently protected against mass assignment
CVE-2026-63498High· 8.7Snipe-IT is an IT asset/license management system
CVE-2026-62368High· 8.1Snipe-IT is an IT asset/license management system