CVE-2026-49846
High · CVSS 7.5Published 2026-09-11
CVSS
7.5
High
EPSS
0.3%
exploit probability
Active Exploit
No
not yet listed
High — patch soon — High severity. Target patch within 7 days.
What is CVE-2026-49846?
libks provides foundational support for signalwire C products. Prior to version 2.0.11, `clean_uri()` in libks's HTTP request parser fails to reject URIs whose path has more segments than its internal canonicalization buffer can hold. The canonicalization step silently passes such URIs through with embedded ".." sequences intact, enabling path traversal in any consumer that later joins the URI with a filesystem path. Version 2.0.11 patches the issue.
CVSS Score Explained
CVSS 7.5 is High severity. Exploitation is likely straightforward and the impact is significant — data loss, privilege escalation, or remote code execution are common outcomes. Patch as soon as possible.
EPSS Exploitation Probability
EPSS 0.3% — low probability of active exploitation. Can be handled in normal patch cycles.
References & Patches
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