CVE-2026-16487 bootc - Remote Code Execution

bootc contains a remote code execution caused by applying unsigned content for registries with insecureAcceptAnything policy, letting attackers execute arbitrary OS content as host root on reboot, exploit requires attacker to update mutable image tag.

CVSS base score 8.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.17% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
19 October 2026
Updated
20 October 2026
Weakness
CWE-345

Vendor fix

Update to the latest version with fixed container signature policy handling.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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