Vulnerability-Lookup

ubuntu-cve-2026-53495

Vulnerability from osv_ubuntu

Published

2026-09-14 18:17

Modified

2026-09-16 11:36

Summary

Details

containerd is an open-source container runtime. Prior to 1.7.35, 2.0.12, 2.2.8, and 2.3.5, containerd on Linux with the CRI plugin enabled can indefinitely block the drainExecSyncIO goroutine in internal/cri/server/container_execsync.go when CRI ExecSync is used by exec probes or lifecycle hooks that launch long-lived background child processes retaining standard input and output pipes. The input and output drain phase has no default timeout and did not stop when the request context was canceled, so repeated ExecSync invocations can accumulate blocked goroutines and host memory. The resulting resource exhaustion can cause the OOM killer to terminate containerd, leaving the container runtime unavailable until restart. Deployments not using containerd's CRI implementation and containers not running on Linux are not affected. This issue is fixed in versions 1.7.35, 2.0.12, 2.2.8, and 2.3.5.

Severity

6.8 (Medium)


                    
                      CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-53495	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-53495	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "containerd",
            "binary_version": "1.2.6-0ubuntu1~16.04.6+esm7"
          },
          {
            "binary_name": "golang-github-docker-containerd-dev",
            "binary_version": "1.2.6-0ubuntu1~16.04.6+esm7"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "containerd",
        "purl": "pkg:deb/ubuntu/containerd@1.2.6-0ubuntu1~16.04.6+esm7?arch=source\u0026distro=esm-apps-legacy/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.2.1-0ubuntu4~16.04",
        "0.2.3-0ubuntu1~16.04",
        "0.2.5-0ubuntu1~16.04.1",
        "1.2.6-0ubuntu1~16.04.2",
        "1.2.6-0ubuntu1~16.04.3",
        "1.2.6-0ubuntu1~16.04.4",
        "1.2.6-0ubuntu1~16.04.5",
        "1.2.6-0ubuntu1~16.04.6",
        "1.2.6-0ubuntu1~16.04.6+esm1",
        "1.2.6-0ubuntu1~16.04.6+esm2",
        "1.2.6-0ubuntu1~16.04.6+esm4",
        "1.2.6-0ubuntu1~16.04.6+esm5",
        "1.2.6-0ubuntu1~16.04.6+esm6",
        "1.2.6-0ubuntu1~16.04.6+esm7"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "containerd",
            "binary_version": "1.6.12-0ubuntu1~18.04.1+esm4"
          },
          {
            "binary_name": "golang-github-containerd-containerd-dev",
            "binary_version": "1.6.12-0ubuntu1~18.04.1+esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "containerd",
        "purl": "pkg:deb/ubuntu/containerd@1.6.12-0ubuntu1~18.04.1+esm4?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.2.5-0ubuntu2",
        "1.2.6-0ubuntu1~18.04.1",
        "1.2.6-0ubuntu1~18.04.2",
        "1.3.3-0ubuntu1~18.04.1",
        "1.3.3-0ubuntu1~18.04.2",
        "1.3.3-0ubuntu1~18.04.3",
        "1.3.3-0ubuntu1~18.04.4",
        "1.4.4-0ubuntu1~18.04.2",
        "1.5.2-0ubuntu1~18.04.1",
        "1.5.2-0ubuntu1~18.04.2",
        "1.5.2-0ubuntu1~18.04.3",
        "1.5.5-0ubuntu3~18.04.1",
        "1.5.5-0ubuntu3~18.04.2",
        "1.5.9-0ubuntu1~18.04.1",
        "1.5.9-0ubuntu1~18.04.2",
        "1.6.12-0ubuntu1~18.04.1",
        "1.6.12-0ubuntu1~18.04.1+esm1",
        "1.6.12-0ubuntu1~18.04.1+esm2",
        "1.6.12-0ubuntu1~18.04.1+esm3",
        "1.6.12-0ubuntu1~18.04.1+esm4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
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            "binary_version": "1.6.12-0ubuntu1~20.04.8+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "containerd",
        "purl": "pkg:deb/ubuntu/containerd@1.6.12-0ubuntu1~20.04.8+esm2?arch=source\u0026distro=esm-infra/focal"
      },
      "ranges": [
        {
          "events": [
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              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.2.10-0ubuntu1",
        "1.3.2-0ubuntu1",
        "1.3.3-0ubuntu1",
        "1.3.3-0ubuntu2",
        "1.3.3-0ubuntu2.1",
        "1.3.3-0ubuntu2.2",
        "1.3.3-0ubuntu2.3",
        "1.4.4-0ubuntu1~20.04.2",
        "1.5.2-0ubuntu1~20.04.1",
        "1.5.2-0ubuntu1~20.04.2",
        "1.5.2-0ubuntu1~20.04.3",
        "1.5.5-0ubuntu3~20.04.1",
        "1.5.5-0ubuntu3~20.04.2",
        "1.5.9-0ubuntu1~20.04.1",
        "1.5.9-0ubuntu1~20.04.4",
        "1.5.9-0ubuntu1~20.04.5",
        "1.5.9-0ubuntu1~20.04.6",
        "1.6.12-0ubuntu1~20.04.1",
        "1.6.12-0ubuntu1~20.04.3",
        "1.6.12-0ubuntu1~20.04.5",
        "1.6.12-0ubuntu1~20.04.6",
        "1.6.12-0ubuntu1~20.04.7",
        "1.6.12-0ubuntu1~20.04.8",
        "1.6.12-0ubuntu1~20.04.8+esm1",
        "1.6.12-0ubuntu1~20.04.8+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "containerd",
            "binary_version": "1.7.24-0ubuntu1~20.04.2+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "containerd-app",
        "purl": "pkg:deb/ubuntu/containerd-app@1.7.24-0ubuntu1~20.04.2+esm2?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.7.2-0ubuntu1~20.04.1",
        "1.7.12-0ubuntu2~20.04.1",
        "1.7.24-0ubuntu1~20.04.1",
        "1.7.24-0ubuntu1~20.04.2",
        "1.7.24-0ubuntu1~20.04.2+esm1",
        "1.7.24-0ubuntu1~20.04.2+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-github-containerd-containerd-dev",
            "binary_version": "1.6.12-0ubuntu1~22.04.11"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "containerd",
        "purl": "pkg:deb/ubuntu/containerd@1.6.12-0ubuntu1~22.04.11?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5.5-0ubuntu3",
        "1.5.9-0ubuntu1",
        "1.5.9-0ubuntu2",
        "1.5.9-0ubuntu3",
        "1.5.9-0ubuntu3.1",
        "1.6.12-0ubuntu1~22.04.1",
        "1.6.12-0ubuntu1~22.04.3",
        "1.6.12-0ubuntu1~22.04.5",
        "1.6.12-0ubuntu1~22.04.6",
        "1.6.12-0ubuntu1~22.04.7",
        "1.6.12-0ubuntu1~22.04.8",
        "1.6.12-0ubuntu1~22.04.9",
        "1.6.12-0ubuntu1~22.04.10",
        "1.6.12-0ubuntu1~22.04.11"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "containerd",
            "binary_version": "2.2.1-0ubuntu1~22.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "containerd-app",
        "purl": "pkg:deb/ubuntu/containerd-app@2.2.1-0ubuntu1~22.04.2?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.7.2-0ubuntu1~22.04.1",
        "1.7.12-0ubuntu2~22.04.1",
        "1.7.24-0ubuntu1~22.04.1",
        "1.7.24-0ubuntu1~22.04.2",
        "1.7.27-0ubuntu1~22.04.1",
        "1.7.28-0ubuntu1~22.04.1",
        "1.7.28-0ubuntu1~22.04.1+esm1",
        "2.2.1-0ubuntu1~22.04.1",
        "2.2.1-0ubuntu1~22.04.2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "containerd",
            "binary_version": "2.2.1-0ubuntu1~24.04.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "containerd-app",
        "purl": "pkg:deb/ubuntu/containerd-app@2.2.1-0ubuntu1~24.04.3?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.7.2-0ubuntu2",
        "1.7.12-0ubuntu1",
        "1.7.12-0ubuntu2",
        "1.7.12-0ubuntu3",
        "1.7.12-0ubuntu4",
        "1.7.12-0ubuntu4.1",
        "1.7.19-0ubuntu1~24.04.1",
        "1.7.19+really1.7.12-0ubuntu4.2",
        "1.7.24-0ubuntu1~24.04.1",
        "1.7.24-0ubuntu1~24.04.2",
        "1.7.27-0ubuntu1~24.04.1",
        "1.7.28-0ubuntu1~24.04.1",
        "1.7.28-0ubuntu1~24.04.2",
        "2.2.1-0ubuntu1~24.04.2",
        "2.2.1-0ubuntu1~24.04.3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-github-containerd-containerd-dev",
            "binary_version": "1.6.24~ds1-1ubuntu1.3+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "containerd",
        "purl": "pkg:deb/ubuntu/containerd@1.6.24~ds1-1ubuntu1.3+esm3?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.20~ds1-1ubuntu2",
        "1.6.24~ds1-1ubuntu1",
        "1.6.24~ds1-1ubuntu1.1",
        "1.6.24~ds1-1ubuntu1.2",
        "1.6.24~ds1-1ubuntu1.2+esm1",
        "1.6.24~ds1-1ubuntu1.3",
        "1.6.24~ds1-1ubuntu1.3+esm1",
        "1.6.24~ds1-1ubuntu1.3+esm2",
        "1.6.24~ds1-1ubuntu1.3+esm3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "containerd",
            "binary_version": "2.2.2-0ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "containerd-app",
        "purl": "pkg:deb/ubuntu/containerd-app@2.2.2-0ubuntu1.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.1.3-0ubuntu3",
        "2.2.1-0ubuntu1",
        "2.2.2-0ubuntu1",
        "2.2.2-0ubuntu1.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "containerd-stable",
            "binary_version": "2.2.2-0ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "containerd-stable",
        "purl": "pkg:deb/ubuntu/containerd-stable@2.2.2-0ubuntu1.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.1.3-0ubuntu1",
        "2.1.5-0ubuntu1",
        "2.2.1-0ubuntu1",
        "2.2.2-0ubuntu1",
        "2.2.2-0ubuntu1.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-github-containerd-containerd-api-dev",
            "binary_version": "1.7.24~ds1-10ubuntu1+esm1"
          },
          {
            "binary_name": "golang-github-containerd-containerd-dev",
            "binary_version": "1.7.24~ds1-10ubuntu1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:26.04:LTS",
        "name": "containerd",
        "purl": "pkg:deb/ubuntu/containerd@1.7.24~ds1-10ubuntu1+esm1?arch=source\u0026distro=esm-apps/resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.7.24~ds1-8ubuntu1",
        "1.7.24~ds1-10ubuntu1",
        "1.7.24~ds1-10ubuntu1+esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "containerd is an open-source container runtime. Prior to 1.7.35, 2.0.12, 2.2.8, and 2.3.5, containerd on Linux with the CRI plugin enabled can indefinitely block the drainExecSyncIO goroutine in internal/cri/server/container_execsync.go when CRI ExecSync is used by exec probes or lifecycle hooks that launch long-lived background child processes retaining standard input and output pipes. The input and output drain phase has no default timeout and did not stop when the request context was canceled, so repeated ExecSync invocations can accumulate blocked goroutines and host memory. The resulting resource exhaustion can cause the OOM killer to terminate containerd, leaving the container runtime unavailable until restart. Deployments not using containerd\u0027s CRI implementation and containers not running on Linux are not affected. This issue is fixed in versions 1.7.35, 2.0.12, 2.2.8, and 2.3.5.",
  "id": "UBUNTU-CVE-2026-53495",
  "modified": "2026-09-16T11:36:38Z",
  "published": "2026-09-14T18:17:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-53495"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-53495"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-53495"
  ]
}

CVE-2026-53495 (GCVE-0-2026-53495)

Vulnerability from cvelistv5 – Published: 2026-09-14 17:18 – Updated: 2026-09-14 17:34

Title

containerd CRI ExecSync Goroutine Leak Leading to Node-Level Denial of Service

Summary

Severity

6.8 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-14 17:33 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

GitHub_M mitre root

References

9 references

URL	Tags
https://github.com/containerd/containerd/security…	x_refsource_CONFIRM
https://github.com/containerd/containerd/commit/2…	x_refsource_MISC
https://github.com/containerd/containerd/commit/5…	x_refsource_MISC
https://github.com/containerd/containerd/commit/9…	x_refsource_MISC
https://github.com/containerd/containerd/commit/e…	x_refsource_MISC
https://github.com/containerd/containerd/commit/f…	x_refsource_MISC
https://github.com/containerd/containerd/releases…	x_refsource_MISC
https://github.com/containerd/containerd/releases…	x_refsource_MISC
https://github.com/containerd/containerd/releases…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
containerd	containerd	Affected: < 1.7.35 Affected: >= 2.0.0, < 2.0.12 Affected: >= 2.2.0, < 2.2.8 Affected: >= 2.3.0, < 2.3.5

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-53495",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-14T17:33:20.990571Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-14T17:34:38.488Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "containerd",
          "vendor": "containerd",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.7.35"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.0.0, \u003c 2.0.12"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.2.0, \u003c 2.2.8"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.3.0, \u003c 2.3.5"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "containerd is an open-source container runtime. Prior to 1.7.35, 2.0.12, 2.2.8, and 2.3.5, containerd on Linux with the CRI plugin enabled can indefinitely block the drainExecSyncIO goroutine in internal/cri/server/container_execsync.go when CRI ExecSync is used by exec probes or lifecycle hooks that launch long-lived background child processes retaining standard input and output pipes. The input and output drain phase has no default timeout and did not stop when the request context was canceled, so repeated ExecSync invocations can accumulate blocked goroutines and host memory. The resulting resource exhaustion can cause the OOM killer to terminate containerd, leaving the container runtime unavailable until restart. Deployments not using containerd\u0027s CRI implementation and containers not running on Linux are not affected. This issue is fixed in versions 1.7.35, 2.0.12, 2.2.8, and 2.3.5."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-14T17:18:06.885Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/containerd/containerd/security/advisories/GHSA-7jxh-36q5-gcqv",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/containerd/containerd/security/advisories/GHSA-7jxh-36q5-gcqv"
        },
        {
          "name": "https://github.com/containerd/containerd/commit/22ccf4314d1fe0834f8e28f10d37d5305ef9880c",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/containerd/containerd/commit/22ccf4314d1fe0834f8e28f10d37d5305ef9880c"
        },
        {
          "name": "https://github.com/containerd/containerd/commit/5a2a3a759b0d2ad8c821b33c3afc20890daf6d81",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/containerd/containerd/commit/5a2a3a759b0d2ad8c821b33c3afc20890daf6d81"
        },
        {
          "name": "https://github.com/containerd/containerd/commit/9ec55f024041d0641f6d79841e45c8781141ddaa",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/containerd/containerd/commit/9ec55f024041d0641f6d79841e45c8781141ddaa"
        },
        {
          "name": "https://github.com/containerd/containerd/commit/eebea8c4c912f44b656c8295c9e6607a19b76650",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/containerd/containerd/commit/eebea8c4c912f44b656c8295c9e6607a19b76650"
        },
        {
          "name": "https://github.com/containerd/containerd/commit/ff39a972369e2f12fae561a58d658bbf8f2bc318",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/containerd/containerd/commit/ff39a972369e2f12fae561a58d658bbf8f2bc318"
        },
        {
          "name": "https://github.com/containerd/containerd/releases/tag/v2.0.12",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/containerd/containerd/releases/tag/v2.0.12"
        },
        {
          "name": "https://github.com/containerd/containerd/releases/tag/v2.2.8",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/containerd/containerd/releases/tag/v2.2.8"
        },
        {
          "name": "https://github.com/containerd/containerd/releases/tag/v2.3.5",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/containerd/containerd/releases/tag/v2.3.5"
        }
      ],
      "source": {
        "advisory": "GHSA-7jxh-36q5-gcqv",
        "discovery": "UNKNOWN"
      },
      "title": "containerd CRI ExecSync Goroutine Leak Leading to Node-Level Denial of Service"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-53495",
    "datePublished": "2026-09-14T17:18:06.885Z",
    "dateReserved": "2026-06-09T17:05:25.059Z",
    "dateUpdated": "2026-09-14T17:34:38.488Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.