cvedb.io
CVE-2026-46491
HIGH · CVSS 8.6
EPSS exploitation probability: 0%
Published 2026-06-10T00:16:53.690 · Last modified 2026-06-17T10:53:43.463

Summary

SimpleSAMLphp-casserver is a CAS 1.0 and 2.0 compliant CAS server in the form of a SimpleSAMLphp module. Prior to version 7.0.3, simplesamlphp-module-casserver builds file paths for the file-based CAS ticket store by directly concatenating the configured ticket directory with an attacker-controlled ticket identifier. Public CAS validation/proxy endpoints pass attacker-controlled ticket / pgt query parameters into this store. In deployments using FileSystemTicketStore, a remote attacker can use path traversal sequences such as ../target.serialized to make the CAS server read and unserialize files outside the ticket directory. In the CAS 1.0 validation flow, the same attacker-selected path is also passed to deleteTicket() immediately after getTicket() returns, which can delete the target fil

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.