SUSE-SU-2026:4923-1

Vulnerability from csaf_suse - Published: 2026-10-27 17:09 - Updated: 2026-10-28 11:17
Summary
Security update for containerd
Severity
Moderate
Notes
Title of the patch: Security update for containerd
Description of the patch: This update for containerd fixes the following issues: - CVE-2026-39882: go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp: Memory exhaustion via uncapped HTTP response body reading (bsc#1274214). - CVE-2026-47262: Denial of Service (DoS) condition via a maliciously crafted image (bsc#1268441). - CVE-2026-53493: a crafted OCI index graph can force very high CPU/memory usage during PullImage (before container start), causing long ContainerCreating stalls and, at larger sizes, node/runtime instability (bsc#1282669). - CVE-2026-53495: CRI ExecSync Goroutine Leak Leads to Node-Level Denial of Service (bsc#1280007). - CVE-2026-95838: github.com/containerd/containerd: processing of certain image layers causes superlinear time complexity in unpack handler and can lead to DoS (bsc#1285124).
Patchnames: SUSE-2026-4923,SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-4923
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
CVE-2026-39882
5.3 (Medium)
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Linux Enterprise High Performance Computing 12 SP5:containerd-0:1.7.29-16.119.1.x86_64 —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64 —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64 —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP5:containerd-0:1.7.29-16.119.1.x86_64 —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64 —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64 —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:containerd-0:1.7.29-16.119.1.x86_64 —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64 —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64 —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 12 SP5:containerd-0:1.7.29-16.119.1.x86_64 —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64 —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64 —
Vendor Fix
Threats
Impact moderate
CVE-2026-47262
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected products
Recommended 12 products, the same list as for CVE-2026-39882
Threats
Impact moderate
CVE-2026-53493
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products
Recommended 12 products, the same list as for CVE-2026-39882
Threats
Impact moderate
CVE-2026-53495
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
Recommended 12 products, the same list as for CVE-2026-39882
Threats
Impact moderate
CVE-2026-95838
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Affected products
Recommended 12 products, the same list as for CVE-2026-39882
Threats
Impact low
References
To clipboard 

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          "category": "impact",
          "date": "2026-10-27T17:09:41Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2026-53493"
    },
    {
      "cve": "CVE-2026-53495",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-53495"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "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.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise High Performance Computing 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
          "SUSE Linux Enterprise High Performance Computing 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
          "SUSE Linux Enterprise High Performance Computing 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64",
          "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
          "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
          "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2026-53495",
          "url": "https://www.suse.com/security/cve/CVE-2026-53495"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1280007 for CVE-2026-53495",
          "url": "https://bugzilla.suse.com/1280007"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise High Performance Computing 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise High Performance Computing 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise High Performance Computing 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise High Performance Computing 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise High Performance Computing 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise High Performance Computing 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-10-27T17:09:41Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2026-53495"
    },
    {
      "cve": "CVE-2026-95838",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-95838"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "containerd is an open-source container runtime. Prior to 1.7.35, 2.0.12, 2.2.8, and 2.3.5, containerd\u0027s layer unpack handler repeatedly traverses directories for certain opaque whiteout configurations. A malicious image layer can trigger repeated directory traversals while opaque whiteouts are processed. Pulling or importing the image can consume CPU, delay container startup, and reduce image-pull concurrency for unrelated deployments. This issue is fixed in versions 1.7.35, 2.0.12, 2.2.8, and 2.3.5.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise High Performance Computing 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
          "SUSE Linux Enterprise High Performance Computing 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
          "SUSE Linux Enterprise High Performance Computing 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
          "SUSE Linux Enterprise Server 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64",
          "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
          "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
          "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2026-95838",
          "url": "https://www.suse.com/security/cve/CVE-2026-95838"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1285122 for CVE-2026-95838",
          "url": "https://bugzilla.suse.com/1285122"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise High Performance Computing 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise High Performance Computing 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise High Performance Computing 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise High Performance Computing 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise High Performance Computing 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise High Performance Computing 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP5:containerd-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP5:containerd-ctr-0:1.7.29-16.119.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP5:containerd-devel-0:1.7.29-16.119.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-10-27T17:09:41Z",
          "details": "low"
        }
      ],
      "title": "CVE-2026-95838"
    }
  ]
}



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