CWE-524: Use of Cache Containing Sensitive Information
The code uses a cache that contains sensitive information, but the cache can be read by an actor outside of the intended control sphere.
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Overview
Applications may use caches to improve efficiency when communicating with remote entities or performing intensive calculations. A cache maintains a pool of objects, threads, connections, pages, financial data, passwords, or other resources to minimize the time it takes to initialize and access these resources. If the cache is accessible to unauthorized actors, attackers can read the cache and obtain this sensitive information.
Real-world CVEs
49 recorded CVEs are caused by CWE-524 (Use of Cache Containing Sensitive Information). The highest-severity and most recent are shown first. 21 new CWE-524 CVEs have been recorded so far in 2026 (13 in 2025).
- CVE-2026-53943
Ghost: Cache-poisoning XSS in Ghost frontend via x-ghost-preview header
Critical · CVSS 9.6 · EPSS 16th2026-06-24 - CVE-2026-61836
Directus: Authorization-dependent response served from unsegmented cache key
High · CVSS 8.6 · EPSS 20th2026-07-15 - CVE-2026-50170
Angular: Information Leak via Default Caching of Credentialed Requests in HttpTransferCache