Auth bypass in Shuffle
CVE-2026-92716
Shuffle through 2.2.1 contains a cross-tenant privilege escalation vulnerability in the HandleApiGeneration endpoint that allows administrators to reset and read API keys of non-administrator users in other organizations. Attackers with admin privileges in one organization can supply arbitrary user IDs to generate valid API keys for users in different organizations, enabling account takeover across tenant boundaries.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (36.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/geo-chen/oss/blob/main/shuffle.md (third-party-advisory)
- github.com/Shuffle/Shuffle (product)
- github.com/Shuffle/shuffle-shared/blob/v1.2.50/shared.go (technical-description)
- github.com/Shuffle/shuffle-shared/commit/c1b582e91b429bc7d5ad02e6c22f98234ec676… (patch)
- www.vulncheck.com/advisories/shuffle-through-2.2.1-api-key-reset-cross-tenant-p… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-92716?
- CVE-2026-92716 is a critical-severity vulnerability in Shuffle, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 9.6/10. Published 2026-09-16.
- How severe is CVE-2026-92716?
- Critical severity. CVSS v3 base score is 9.6 out of 10.