CVE-2026-58086

As an inadvertent side effect of an unrelated code change, PRIV_KTRACE was always denied to a jailed root user. Tracing configured by a jailed root user was therefore not flagged as privileged. An unprivileged user in a jail that has permission to debug the target process can modify the jailed root user's ktrace(2) flags, or disable tracing outright. A jailed root user therefore cannot reliably trace unprivileged processes.

Score
CVSS 3.1 8.1 High
Status
Analyzed - secteam@freebsd.org
Published
2026-08-19
Last modified
2026-10-27
Weaknesses
CWE-273

Affected products

References

 
 
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