Ray Dashboard Path Traversal and DoS

Local file disclosure in the Ray Dashboard (default TCP port 8265) of the Ray distributed-computing framework affects all releases prior to 2.8.1, where the static file handler fails to sanitize user-supplied paths. Remote attackers can submit directory-traversal sequences to read arbitrary files outside the intended static directory, exposing source code, configuration, and credentials. Publicly available exploit code exists (reported by VulnCheck), though EPSS estimates exploitation probability at only 0.07% (20th percentile) and the issue is not listed in CISA KEV.

The pyasn1 library suffers from an uncontrolled recursion vulnerability when parsing deeply nested ASN.1 structures, allowing remote attackers to trigger a denial of service through stack exhaustion or memory consumption. Any service using pyasn1 to parse untrusted ASN.1 data (including LDAP, SNMP, Kerberos, and X.509 parsers) can be crashed remotely with a small crafted payload under 100KB. A working proof-of-concept is publicly available, and while not currently in CISA KEV, the vulnerability has a CVSS score of 7.5 indicating high severity.