CVE-2026-16254 (GCVE-0-2026-16254)

Vulnerability from cvelistv5 – Published: 2026-07-20 10:42 – Updated: 2026-07-20 13:03
VLAI
Title
Claircore: claircore: denial of service via out-of-bounds slice in claircore's apk installed-database parser
Summary
A flaw was found in claircore's apk package scanner. Malformed package-database data in a container layer can cause an out-of-bounds access that panics the scanner. If that panic is not recovered, the Clair indexer process can crash, leading to a denial of service.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-20 13:03 UTC
CWE
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-16254 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2502701 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version CPE status
Red Hat Red Hat Advanced Cluster Security 4     cpe:/a:redhat:advanced_cluster_security:4
Create a notification for this product.
Red Hat Red Hat Quay 3     cpe:/a:redhat:quay:3
Create a notification for this product.
Date Public
2026-07-20 07:58
Show details on NVD website

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              "descriptions": [
                {
                  "cweId": "CWE-125",
                  "description": "Out-of-bounds Read",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-07-20T10:42:02.327Z",
            "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
            "shortName": "redhat"
          },
          "references": [
            {
              "tags": [
                "vdb-entry",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/security/cve/CVE-2026-16254"
            },
            {
              "name": "RHBZ#2502701",
              "tags": [
                "issue-tracking",
                "x_refsource_REDHAT"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502701"
            }
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2026-07-20T07:23:30.820Z",
              "value": "Reported to Red Hat."
            },
            {
              "lang": "en",
              "time": "2026-07-20T07:58:00.000Z",
              "value": "Made public."
            }
          ],
          "title": "Claircore: claircore: denial of service via out-of-bounds slice in claircore\u0027s apk installed-database parser",
          "workarounds": [
            {
              "lang": "en",
              "value": "Limit image push/indexing to trusted sources until a fix is available. Where possible, run indexing so a single scanner failure cannot disrupt shared indexing capacity."
            }
          ],
          "x_generator": {
            "engine": "cvelib 1.8.0"
          },
          "x_redhatCweChain": "CWE-125: Out-of-bounds Read"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "assignerShortName": "redhat",
        "cveId": "CVE-2026-16254",
        "datePublished": "2026-07-20T10:42:02.327Z",
        "dateReserved": "2026-07-20T08:01:11.264Z",
        "dateUpdated": "2026-07-20T13:03:28.164Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Detection rules are retrieved from Rulezet.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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