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    4 vulnerabilities found for encoding/asn1 by Go standard library

    CVE-2026-33818 (GCVE-0-2026-33818)

    Vulnerability from nvd – Published: 2026-08-13 21:58 – Updated: 2026-08-14 16:38
    VLAI
    Title
    Enforce maximum recursion depth in encoding/asn1
    Summary
    Enforce a recursion limit in Unmarshal to prevent stack exhaustion when parsing deeply-nested, recursive structures.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-14 15:11 UTC
    CWE
    • CWE-400 - Uncontrolled Resource Consumption
    Assigner
    Go
    References
    Impacted products
    Vendor Product Version
    Go standard library encoding/asn1 Affected: 0 , < 1.25.13 (semver)
    Affected: 1.26.0-0 , < 1.26.6 (semver)
    Affected: 1.27.0-0 , < 1.27.0-rc.3 (semver)
    		Create a notification for this product.
    Credits
    Marwan Atia (marwansamir688@gmail.com)
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-33818",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-14T15:11:19.904646Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-400",
                "description": "CWE-400 Uncontrolled Resource Consumption",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-14T15:12:34.877Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "encoding/asn1",
          "product": "encoding/asn1",
          "programRoutines": [
            {
              "name": "parseSequenceOf"
            },
            {
              "name": "parseField"
            },
            {
              "name": "UnmarshalWithParams"
            },
            {
              "name": "Unmarshal"
            }
          ],
          "vendor": "Go standard library",
          "versions": [
            {
              "lessThan": "1.25.13",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.26.6",
              "status": "affected",
              "version": "1.26.0-0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.27.0-rc.3",
              "status": "affected",
              "version": "1.27.0-0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Marwan Atia (marwansamir688@gmail.com)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Enforce a recursion limit in Unmarshal to prevent stack exhaustion when parsing deeply-nested, recursive structures."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-14T16:38:16.087Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
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        {
          "url": "https://go.dev/issue/80405"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/94pEornpRlI"
        },
        {
          "url": "https://go.dev/cl/814980"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-5972"
        }
      ],
      "title": "Enforce maximum recursion depth in encoding/asn1"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2026-33818",
    "datePublished": "2026-08-13T21:58:52.821Z",
    "dateReserved": "2026-03-23T20:35:32.815Z",
    "dateUpdated": "2026-08-14T16:38:16.087Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2025-58185 (GCVE-0-2025-58185)

    Vulnerability from nvd – Published: 2025-10-29 22:10 – Updated: 2025-11-04 21:13
    VLAI
    Title
    Parsing DER payload can cause memory exhaustion in encoding/asn1
    Summary
    Parsing a maliciously crafted DER payload could allocate large amounts of memory, causing memory exhaustion.
    Severity
    5.3 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-10-30 14:25 UTC
    CWE
    • CWE-400 - Uncontrolled Resource Consumption
    Assigner
    Go
    References
    Impacted products
    Vendor Product Version
    Go standard library encoding/asn1 Affected: 0 , < 1.24.8 (semver)
    Affected: 1.25.0 , < 1.25.2 (semver)
    		Create a notification for this product.
    Credits
    Jakub Ciolek
    Show details on NVD website
    To clipboard 

    {
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    "adp": [
      {
        "metrics": [
          {
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              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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              "baseScore": 5.3,
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              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
              "version": "3.1"
            }
          },
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            "other": {
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                "id": "CVE-2025-58185",
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                    "Exploitation": "none"
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-30T14:25:15.876220Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-30T14:25:43.620Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-04T21:13:34.163Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
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          {
            "url": "http://www.openwall.com/lists/oss-security/2025/10/08/1"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "encoding/asn1",
          "product": "encoding/asn1",
          "programRoutines": [
            {
              "name": "parseSequenceOf"
            },
            {
              "name": "Unmarshal"
            },
            {
              "name": "UnmarshalWithParams"
            }
          ],
          "vendor": "Go standard library",
          "versions": [
            {
              "lessThan": "1.24.8",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
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              "status": "affected",
              "version": "1.25.0",
              "versionType": "semver"
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          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Jakub Ciolek"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Parsing a maliciously crafted DER payload could allocate large amounts of memory, causing memory exhaustion."
        }
      ],
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        {
          "descriptions": [
            {
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en"
            }
          ]
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      ],
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        "dateUpdated": "2025-10-29T22:10:13.682Z",
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          "url": "https://go.dev/cl/709856"
        },
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          "url": "https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2025-4011"
        }
      ],
      "title": "Parsing DER payload can cause memory exhaustion in encoding/asn1"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
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    "dateReserved": "2025-08-27T14:50:58.691Z",
    "dateUpdated": "2025-11-04T21:13:34.163Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-33818 (GCVE-0-2026-33818)

    Vulnerability from cvelistv5 – Published: 2026-08-13 21:58 – Updated: 2026-08-14 16:38
    VLAI
    Title
    Enforce maximum recursion depth in encoding/asn1
    Summary
    Enforce a recursion limit in Unmarshal to prevent stack exhaustion when parsing deeply-nested, recursive structures.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-14 15:11 UTC
    CWE
    • CWE-400 - Uncontrolled Resource Consumption
    Assigner
    Go
    References
    Impacted products
    Vendor Product Version
    Go standard library encoding/asn1 Affected: 0 , < 1.25.13 (semver)
    Affected: 1.26.0-0 , < 1.26.6 (semver)
    Affected: 1.27.0-0 , < 1.27.0-rc.3 (semver)
    		Create a notification for this product.
    Credits
    Marwan Atia (marwansamir688@gmail.com)
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-33818",
                "options": [
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                    "Exploitation": "none"
                  },
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                    "Automatable": "yes"
                  },
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                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-14T15:11:19.904646Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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          }
        ],
        "problemTypes": [
          {
            "descriptions": [
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                "cweId": "CWE-400",
                "description": "CWE-400 Uncontrolled Resource Consumption",
                "lang": "en",
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            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-14T15:12:34.877Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "encoding/asn1",
          "product": "encoding/asn1",
          "programRoutines": [
            {
              "name": "parseSequenceOf"
            },
            {
              "name": "parseField"
            },
            {
              "name": "UnmarshalWithParams"
            },
            {
              "name": "Unmarshal"
            }
          ],
          "vendor": "Go standard library",
          "versions": [
            {
              "lessThan": "1.25.13",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.26.6",
              "status": "affected",
              "version": "1.26.0-0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.27.0-rc.3",
              "status": "affected",
              "version": "1.27.0-0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Marwan Atia (marwansamir688@gmail.com)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Enforce a recursion limit in Unmarshal to prevent stack exhaustion when parsing deeply-nested, recursive structures."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en"
            }
          ]
        }
      ],
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        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
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        },
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        },
        {
          "url": "https://go.dev/cl/814980"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-5972"
        }
      ],
      "title": "Enforce maximum recursion depth in encoding/asn1"
    }
  },
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    "dateReserved": "2026-03-23T20:35:32.815Z",
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2025-58185 (GCVE-0-2025-58185)

    Vulnerability from cvelistv5 – Published: 2025-10-29 22:10 – Updated: 2025-11-04 21:13
    VLAI
    Title
    Parsing DER payload can cause memory exhaustion in encoding/asn1
    Summary
    Parsing a maliciously crafted DER payload could allocate large amounts of memory, causing memory exhaustion.
    Severity
    5.3 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-10-30 14:25 UTC
    CWE
    • CWE-400 - Uncontrolled Resource Consumption
    Assigner
    Go
    References
    Impacted products
    Vendor Product Version
    Go standard library encoding/asn1 Affected: 0 , < 1.24.8 (semver)
    Affected: 1.25.0 , < 1.25.2 (semver)
    		Create a notification for this product.
    Credits
    Jakub Ciolek
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "LOW",
              "baseScore": 5.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-58185",
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                  },
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                  },
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                "role": "CISA Coordinator",
                "timestamp": "2025-10-30T14:25:15.876220Z",
                "version": "2.0.3"
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        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-30T14:25:43.620Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
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          }
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          "collectionURL": "https://pkg.go.dev",
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            {
              "name": "parseSequenceOf"
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              "name": "Unmarshal"
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          "lang": "en",
          "value": "Jakub Ciolek"
        }
      ],
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        {
          "lang": "en",
          "value": "Parsing a maliciously crafted DER payload could allocate large amounts of memory, causing memory exhaustion."
        }
      ],
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              "description": "CWE-400: Uncontrolled Resource Consumption",
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            }
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      ],
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        "dateUpdated": "2025-10-29T22:10:13.682Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
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          "url": "https://go.dev/issue/75671"
        },
        {
          "url": "https://go.dev/cl/709856"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2025-4011"
        }
      ],
      "title": "Parsing DER payload can cause memory exhaustion in encoding/asn1"
    }
  },
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    "dateUpdated": "2025-11-04T21:13:34.163Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}