CVE-2026-77050 (GCVE-0-2026-77050)
Vulnerability from cvelistv5
Published
2026-10-06 13:34
Modified
2026-10-06 14:21
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
6.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Summary
An issue was discovered in Django 6.1 before 6.1.2, 6.0 before 6.0.9, and 5.2 before 5.2.18. `django.utils.translation.get_supported_language_variant()` is subject to a potential denial-of-service attack when processing many distinct, very long language codes, which are retained as keys in an in-memory cache and consume process memory. Earlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected. Django would like to thank Gleb Lizunov for reporting this issue.
References
Impacted products
Vendor Product Version
djangoproject Django Version: 6.1
Version: 6.0
Version: 5.2
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-77050",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-06T14:20:18.760413Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-06T14:21:29.655Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pypi.org/project/Django/",
          "defaultStatus": "unaffected",
          "packageName": "django",
          "product": "Django",
          "repo": "https://github.com/django/django/",
          "vendor": "djangoproject",
          "versions": [
            {
              "lessThan": "6.1.2",
              "status": "affected",
              "version": "6.1",
              "versionType": "python"
            },
            {
              "status": "unaffected",
              "version": "6.1.2",
              "versionType": "python"
            },
            {
              "lessThan": "6.0.9",
              "status": "affected",
              "version": "6.0",
              "versionType": "python"
            },
            {
              "status": "unaffected",
              "version": "6.0.9",
              "versionType": "python"
            },
            {
              "lessThan": "5.2.18",
              "status": "affected",
              "version": "5.2",
              "versionType": "python"
            },
            {
              "status": "unaffected",
              "version": "5.2.18",
              "versionType": "python"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Gleb Lizunov"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Sarah Boyce"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Sarah Boyce"
        }
      ],
      "datePublic": "2026-10-06T08:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eAn issue was discovered in Django 6.1 before 6.1.2, 6.0 before 6.0.9, and 5.2 before 5.2.18.\u003c/p\u003e\u003cp\u003e\u003ccode\u003edjango.utils.translation.get_supported_language_variant()\u003c/code\u003e is subject to\u003c/p\u003e\u003cp\u003ea potential denial-of-service attack when processing many distinct, very long\u003c/p\u003e\u003cp\u003elanguage codes, which are retained as keys in an in-memory cache and\u003c/p\u003e\u003cp\u003econsume process memory.\u003c/p\u003e\u003cp\u003eEarlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected.\u003c/p\u003e\u003cp\u003eDjango would like to thank Gleb Lizunov for reporting this issue.\u003c/p\u003e"
            }
          ],
          "value": "An issue was discovered in Django 6.1 before 6.1.2, 6.0 before 6.0.9, and 5.2 before 5.2.18.\n`django.utils.translation.get_supported_language_variant()` is subject to\r\na potential denial-of-service attack when processing many distinct, very long\r\nlanguage codes, which are retained as keys in an in-memory cache and\r\nconsume process memory.\nEarlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected.\nDjango would like to thank Gleb Lizunov for reporting this issue."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-130",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-130: Excessive Allocation"
            }
          ]
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://docs.djangoproject.com/en/dev/internals/security/#security-issue-severity-levels",
              "value": "low"
            },
            "type": "Django severity rating"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          }
        },
        {
          "cvssV4_0": {
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
            "version": "4.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-789",
              "description": "CWE-789: Memory Allocation with Excessive Size Value",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-06T13:34:40.107Z",
        "orgId": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92",
        "shortName": "DSF"
      },
      "references": [
        {
          "name": "Django security archive",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://docs.djangoproject.com/en/dev/releases/security/"
        },
        {
          "name": "Django releases announcements",
          "tags": [
            "mailing-list"
          ],
          "url": "https://groups.google.com/g/django-announce"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/django/django/commit/c88b304cc2d90fc37d3bd1f5f3829706fa6c13bc"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/django/django/commit/7e878b0f8bd42260903e6a0d38996a93b0474a0b"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/django/django/commit/3d32ee80ae52745d686bf94d3555000ddf073267"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/django/django/commit/02a69e3791e3df23d45ea4ea7e7fc489f0eef2be"
        },
        {
          "name": "Django security releases issued: 6.1.2, 6.0.9, and 5.2.18",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.djangoproject.com/weblog/2026/oct/06/security-releases/"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2026-08-06T04:49:58.000Z",
          "value": "Initial report received."
        },
        {
          "lang": "en",
          "time": "2026-08-20T04:50:04.000Z",
          "value": "Vulnerability confirmed."
        },
        {
          "lang": "en",
          "time": "2026-10-06T08:00:00.000Z",
          "value": "Security release issued."
        }
      ],
      "title": "Potential denial-of-service vulnerability in get_supported_language_variant()",
      "x_generator": {
        "engine": "cvelib 1.8.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92",
    "assignerShortName": "DSF",
    "cveId": "CVE-2026-77050",
    "datePublished": "2026-10-06T13:34:40.107Z",
    "dateReserved": "2026-08-20T09:29:37.560Z",
    "dateUpdated": "2026-10-06T14:21:29.655Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-77050\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-06T14:20:18.760413Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-06T14:21:22.218Z\"}}], \"cna\": {\"title\": \"Potential denial-of-service vulnerability in get_supported_language_variant()\", \"source\": {\"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"Gleb Lizunov\"}, {\"lang\": \"en\", \"type\": \"remediation developer\", \"value\": \"Sarah Boyce\"}, {\"lang\": \"en\", \"type\": \"coordinator\", \"value\": \"Sarah Boyce\"}], \"impacts\": [{\"capecId\": \"CAPEC-130\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-130: Excessive Allocation\"}]}], \"metrics\": [{\"other\": {\"type\": \"Django severity rating\", \"content\": {\"value\": \"low\", \"namespace\": \"https://docs.djangoproject.com/en/dev/internals/security/#security-issue-severity-levels\"}}}, {\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 5.3, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L\"}}, {\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 6.9, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N\"}}], \"affected\": [{\"repo\": \"https://github.com/django/django/\", \"vendor\": \"djangoproject\", \"product\": \"Django\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.1\", \"lessThan\": \"6.1.2\", \"versionType\": \"python\"}, {\"status\": \"unaffected\", \"version\": \"6.1.2\", \"versionType\": \"python\"}, {\"status\": \"affected\", \"version\": \"6.0\", \"lessThan\": \"6.0.9\", \"versionType\": \"python\"}, {\"status\": \"unaffected\", \"version\": \"6.0.9\", \"versionType\": \"python\"}, {\"status\": \"affected\", \"version\": \"5.2\", \"lessThan\": \"5.2.18\", \"versionType\": \"python\"}, {\"status\": \"unaffected\", \"version\": \"5.2.18\", \"versionType\": \"python\"}], \"packageName\": \"django\", \"collectionURL\": \"https://pypi.org/project/Django/\", \"defaultStatus\": \"unaffected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-08-06T04:49:58.000Z\", \"value\": \"Initial report received.\"}, {\"lang\": \"en\", \"time\": \"2026-08-20T04:50:04.000Z\", \"value\": \"Vulnerability confirmed.\"}, {\"lang\": \"en\", \"time\": \"2026-10-06T08:00:00.000Z\", \"value\": \"Security release issued.\"}], \"datePublic\": \"2026-10-06T08:00:00.000Z\", \"references\": [{\"url\": \"https://docs.djangoproject.com/en/dev/releases/security/\", \"name\": \"Django security archive\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://groups.google.com/g/django-announce\", \"name\": \"Django releases announcements\", \"tags\": [\"mailing-list\"]}, {\"url\": \"https://github.com/django/django/commit/c88b304cc2d90fc37d3bd1f5f3829706fa6c13bc\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/django/django/commit/7e878b0f8bd42260903e6a0d38996a93b0474a0b\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/django/django/commit/3d32ee80ae52745d686bf94d3555000ddf073267\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/django/django/commit/02a69e3791e3df23d45ea4ea7e7fc489f0eef2be\", \"tags\": [\"patch\"]}, {\"url\": \"https://www.djangoproject.com/weblog/2026/oct/06/security-releases/\", \"name\": \"Django security releases issued: 6.1.2, 6.0.9, and 5.2.18\", \"tags\": [\"vendor-advisory\"]}], \"x_generator\": {\"engine\": \"cvelib 1.8.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"An issue was discovered in Django 6.1 before 6.1.2, 6.0 before 6.0.9, and 5.2 before 5.2.18.\\n`django.utils.translation.get_supported_language_variant()` is subject to\\r\\na potential denial-of-service attack when processing many distinct, very long\\r\\nlanguage codes, which are retained as keys in an in-memory cache and\\r\\nconsume process memory.\\nEarlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected.\\nDjango would like to thank Gleb Lizunov for reporting this issue.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eAn issue was discovered in Django 6.1 before 6.1.2, 6.0 before 6.0.9, and 5.2 before 5.2.18.\u003c/p\u003e\u003cp\u003e\u003ccode\u003edjango.utils.translation.get_supported_language_variant()\u003c/code\u003e is subject to\u003c/p\u003e\u003cp\u003ea potential denial-of-service attack when processing many distinct, very long\u003c/p\u003e\u003cp\u003elanguage codes, which are retained as keys in an in-memory cache and\u003c/p\u003e\u003cp\u003econsume process memory.\u003c/p\u003e\u003cp\u003eEarlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected.\u003c/p\u003e\u003cp\u003eDjango would like to thank Gleb Lizunov for reporting this issue.\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-789\", \"description\": \"CWE-789: Memory Allocation with Excessive Size Value\"}]}], \"providerMetadata\": {\"orgId\": \"6a34fbeb-21d4-45e7-8e0a-62b95bc12c92\", \"shortName\": \"DSF\", \"dateUpdated\": \"2026-10-06T13:34:40.107Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-77050\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-06T14:21:29.655Z\", \"dateReserved\": \"2026-08-20T09:29:37.560Z\", \"assignerOrgId\": \"6a34fbeb-21d4-45e7-8e0a-62b95bc12c92\", \"datePublished\": \"2026-10-06T13:34:40.107Z\", \"assignerShortName\": \"DSF\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.