CVE-2026-16487

CVE-2026-16487

published October 19, 2026

CVSS
8.1
EPSS
0%
Percentile
6.3
In the wild
Unconfirmed
What it is

Rejected reason: Red Hat Product Security has determined that this is not a vulnerability in bootc or containers-common. bootc fetches images under /etc/containers/policy.json. The shipped default is insecureAcceptAnything for registries without an explicit signature requirement; registry.redhat.io and registry.access.redhat.com require signatures. Updating a mutable tag requires the ability to publish to the reference an administrator has already configured the host to follow. Requiring signatures is available through that policy and through bootc enforce-container-sigpolicy, which is off by default. Persistence of /var across bootc rollback is expected image-mode behavior.

The record
Technical detail
CVSS
8.1 · NONE
CVSS v4.0
Not supplied
EPSS
0.00173 · 6.3th percentile
Published
2026-10-19T10:17Z
EPSS history
Timeline
  • 20 OCT 03:29Z
    EPSS moved — → 0%
    epss
  • 19 OCT 05:27Z
    Bootc: containers-common: bootc: automatic updates can apply unsigned mutable-tag content under default containers policy
    cvelistv5
  • 19 OCT 05:27Z
    Bootc: containers-common: bootc: automatic updates can apply unsigned mutable-tag content under default containers policy
    cvelistv5