CVE-2026-16460 (GCVE-0-2026-16460)

Vulnerability from cvelistv5 – Published: 2026-10-19 06:40 – Updated: 2026-10-19 17:30
VLAI
Title
Bootc: ostree: bootc/ostree: staged deployments not revalidated against container signature policy before finalization
Summary
A flaw was found in bootc and ostree. Already-staged deployments are finalized without revalidating the deployment's container image against the current containers signature policy. Unsigned OS content staged under a prior permissive policy can remain bootable after policy is hardened to reject unsigned images, leading to full host compromise on reboot.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-19 17:30 UTC
CWE
  • CWE-345 - Insufficient Verification of Data Authenticity
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1037 records in the last 180 days details
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-16460 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2503167 issue-trackingx_refsource_REDHAT
Impacted products
Date Public
2026-10-18 00:00
Show details on NVD website

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              "time": "2026-07-21T11:36:56.492Z",
              "value": "Reported to Red Hat."
            },
            {
              "lang": "en",
              "time": "2026-10-18T00:00:00.000Z",
              "value": "Made public."
            }
          ],
          "title": "Bootc: ostree: bootc/ostree: staged deployments not revalidated against container signature policy before finalization",
          "workarounds": [
            {
              "lang": "en",
              "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."
            }
          ],
          "x_generator": {
            "engine": "cvelib 1.8.0"
          },
          "x_redhatCweChain": "CWE-345: Insufficient Verification of Data Authenticity"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "assignerShortName": "redhat",
        "cveId": "CVE-2026-16460",
        "datePublished": "2026-10-19T06:40:50.466Z",
        "dateReserved": "2026-07-21T11:26:43.156Z",
        "dateUpdated": "2026-10-19T17:30:27.256Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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