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CVE-2026-37978 is an information disclosure vulnerability in Keycloak affecting the Admin API evaluate-scopes endpoints. A low-privilege administrator assigned the view-clients role can invoke these endpoints with an arbitrary user identifier in the userId parameter and retrieve information about users outside the administrator’s authorized scope. The flaw results from insufficient authorization enforcement on user-specific access within the evaluate-scopes functionality, allowing cross-role exposure of personally identifiable information and authorization data across the realm. Exploitation is possible remotely over the network through access to the Keycloak Admin API.
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What an attacker gets, and what they’ve been doing with it.
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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.
3 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
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.