CVE-2026-44796 (GCVE-0-2026-44796)

Vulnerability from cvelistv5 – Published: 2026-05-28 17:00 – Updated: 2026-05-28 17:00
VLAI
Title
Nautobot: Object bulk rename UI actions vulnerable to denial of service by crafted regular expression (REDoS)
Summary
Nautobot is a Network Source of Truth and Network Automation Platform. Prior to 2.4.33 and 3.1.2, Nautobot UI object-bulk-rename endpoints (for example, /dcim/interfaces/rename/) were vulnerable to application-wide denial of service via maliciously crafted regular expressions in the find field in combination with the use_regex flag. This vulnerability is fixed in 2.4.33 and 3.1.2.
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
Impacted products
Vendor Product Version
nautobot nautobot Affected: >= 3.0.0a2, < 3.1.2
Affected: < 2.4.33
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "nautobot",
          "vendor": "nautobot",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3.0.0a2, \u003c 3.1.2"
            },
            {
              "status": "affected",
              "version": "\u003c 2.4.33"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Nautobot is a Network Source of Truth and Network Automation Platform. Prior to 2.4.33 and 3.1.2, Nautobot UI object-bulk-rename endpoints (for example, /dcim/interfaces/rename/) were vulnerable to application-wide denial of service via maliciously crafted regular expressions in the find field in combination with the use_regex flag. This vulnerability is fixed in 2.4.33 and 3.1.2."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
              "description": "CWE-1333: Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-28T17:00:06.533Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/nautobot/nautobot/security/advisories/GHSA-qrpw-gjvh-x5gm",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/nautobot/nautobot/security/advisories/GHSA-qrpw-gjvh-x5gm"
        },
        {
          "name": "https://github.com/nautobot/nautobot/commit/5a30d0916953afbeedd24a784709e762cc3879cd",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/nautobot/nautobot/commit/5a30d0916953afbeedd24a784709e762cc3879cd"
        },
        {
          "name": "https://github.com/nautobot/nautobot/commit/c2b766966d814a7141f62c7bc90c85fefb7892ee",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/nautobot/nautobot/commit/c2b766966d814a7141f62c7bc90c85fefb7892ee"
        },
        {
          "name": "https://github.com/nautobot/nautobot/releases/tag/v2.4.33",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/nautobot/nautobot/releases/tag/v2.4.33"
        },
        {
          "name": "https://github.com/nautobot/nautobot/releases/tag/v3.1.2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/nautobot/nautobot/releases/tag/v3.1.2"
        }
      ],
      "source": {
        "advisory": "GHSA-qrpw-gjvh-x5gm",
        "discovery": "UNKNOWN"
      },
      "title": "Nautobot: Object bulk rename UI actions vulnerable to denial of service by crafted regular expression (REDoS)"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-44796",
    "datePublished": "2026-05-28T17:00:06.533Z",
    "dateReserved": "2026-05-07T19:20:44.693Z",
    "dateUpdated": "2026-05-28T17:00:06.533Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-44796\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-05-28T18:16:33.417\",\"lastModified\":\"2026-05-28T18:38:35.797\",\"vulnStatus\":\"Undergoing Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Nautobot is a Network Source of Truth and Network Automation Platform. Prior to 2.4.33 and 3.1.2, Nautobot UI object-bulk-rename endpoints (for example, /dcim/interfaces/rename/) were vulnerable to application-wide denial of service via maliciously crafted regular expressions in the find field in combination with the use_regex flag. This vulnerability is fixed in 2.4.33 and 3.1.2.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-400\"},{\"lang\":\"en\",\"value\":\"CWE-1333\"}]}],\"references\":[{\"url\":\"https://github.com/nautobot/nautobot/commit/5a30d0916953afbeedd24a784709e762cc3879cd\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/nautobot/nautobot/commit/c2b766966d814a7141f62c7bc90c85fefb7892ee\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/nautobot/nautobot/releases/tag/v2.4.33\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/nautobot/nautobot/releases/tag/v3.1.2\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/nautobot/nautobot/security/advisories/GHSA-qrpw-gjvh-x5gm\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}


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