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CVE-2026-67331 is an authorization bypass vulnerability in better-auth SCIM affecting versions from 1.5.0 before 1.7.0-beta.4. The flaw stems from non-organization SCIM providers not being bound to their creator by default. As a result, an authenticated user can access and manage SCIM providers belonging to other users. Successful exploitation allows the attacker to regenerate SCIM bearer tokens for those providers, invalidate legitimate tokens, and then use attacker-controlled tokens to authenticate to SCIM API routes. The issue is consistent with an insecure direct object reference or ownership validation failure in provider management logic.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.