Vulnerability-Lookup

PYSEC-2026-2226

Vulnerability from pysec - Published: 2026-05-28 18:16 - Updated: 2026-07-13 05:50

Details

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.

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Impacted products

Name	purl
nautobot	pkg:pypi/nautobot

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {},
      "package": {
        "ecosystem": "PyPI",
        "name": "nautobot",
        "purl": "pkg:pypi/nautobot"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.33"
            },
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.0",
        "1.0.0a1",
        "1.0.0a2",
        "1.0.0b1",
        "1.0.0b2",
        "1.0.0b3",
        "1.0.0b4",
        "1.0.1",
        "1.0.2",
        "1.0.3",
        "1.1.0",
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        "1.2.0",
        "1.2.1",
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        "1.2.2",
        "1.2.3",
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        "1.2.6",
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        "1.2.9",
        "1.3.0",
        "1.3.1",
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        "1.3.3",
        "1.3.4",
        "1.3.5",
        "1.3.6",
        "1.3.7",
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        "1.4.1",
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        "2.4.2",
        "2.4.20",
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        "2.4.32",
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        "3.0.2",
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        "3.1.0a1",
        "3.1.0a2",
        "3.1.0a3",
        "3.1.0a4",
        "3.1.0a5",
        "3.1.1"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-44796",
    "GHSA-qrpw-gjvh-x5gm"
  ],
  "details": "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.",
  "id": "PYSEC-2026-2226",
  "modified": "2026-07-13T05:50:10.460726Z",
  "published": "2026-05-28T18:16:33.417Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/nautobot/nautobot/releases/tag/v2.4.33"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/nautobot/nautobot/releases/tag/v3.1.2"
    },
    {
      "type": "FIX",
      "url": "https://github.com/nautobot/nautobot/commit/5a30d0916953afbeedd24a784709e762cc3879cd"
    },
    {
      "type": "FIX",
      "url": "https://github.com/nautobot/nautobot/commit/c2b766966d814a7141f62c7bc90c85fefb7892ee"
    },
    {
      "type": "FIX",
      "url": "https://github.com/nautobot/nautobot/security/advisories/GHSA-qrpw-gjvh-x5gm"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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

Vulnerability from cvelistv5 – Published: 2026-05-28 17:00 – Updated: 2026-05-30 02:01

Title

Nautobot: Object bulk rename UI actions vulnerable to denial of service by crafted regular expression (REDoS)

Summary

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-1333 - Inefficient Regular Expression Complexity

Assigner

GitHub_M

References

5 references

URL	Tags
https://github.com/nautobot/nautobot/security/adv…	x_refsource_CONFIRM
https://github.com/nautobot/nautobot/commit/5a30d…	x_refsource_MISC
https://github.com/nautobot/nautobot/commit/c2b76…	x_refsource_MISC
https://github.com/nautobot/nautobot/releases/tag…	x_refsource_MISC
https://github.com/nautobot/nautobot/releases/tag…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
nautobot	nautobot	Affected: >= 3.0.0a2, < 3.1.2 Affected: < 2.4.33

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-44796",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-30T02:01:49.952039Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-30T02:01:59.747Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "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": "2026-05-30T02:01:59.747Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

GHSA-QRPW-GJVH-X5GM

Vulnerability from github – Published: 2026-05-13 15:30 – Updated: 2026-06-09 02:01

Summary

Nautobot: Object bulk rename UI actions vulnerable to denial of service by crafted regular expression (REDoS)

Details

Impact

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.

Patches

A general-purpose timeout has been added to these endpoints in Nautobot v2.4.33 and v3.1.2, which ensures that the request will fail early with an appropriate message if regular expression evaluation takes more than a short period of time, instead of continuing to execute for an indefinite duration.

Workarounds

No known workaround has been identified at this time.

References

2.4.33 (patch)
3.1.2 (patch)

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "nautobot"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0a2"
            },
            {
              "fixed": "3.1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "nautobot"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.33"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-44796"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333",
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-13T15:30:53Z",
    "nvd_published_at": "2026-05-28T18:16:33Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nNautobot 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.\n\n### Patches\n\nA general-purpose timeout has been added to these endpoints in Nautobot v2.4.33 and v3.1.2, which ensures that the request will fail early with an appropriate message if regular expression evaluation takes more than a short period of time, instead of continuing to execute for an indefinite duration.\n\n### Workarounds\n\nNo known workaround has been identified at this time.\n\n### References\n\n- 2.4.33 (\u003ca href=\"https://github.com/nautobot/nautobot/commit/c2b766966d814a7141f62c7bc90c85fefb7892ee\"\u003epatch\u003c/a\u003e)\n- 3.1.2 (\u003ca href=\"https://github.com/nautobot/nautobot/commit/5a30d0916953afbeedd24a784709e762cc3879cd\"\u003epatch\u003c/a\u003e)",
  "id": "GHSA-qrpw-gjvh-x5gm",
  "modified": "2026-06-09T02:01:07Z",
  "published": "2026-05-13T15:30:53Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/nautobot/nautobot/security/advisories/GHSA-qrpw-gjvh-x5gm"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44796"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nautobot/nautobot/commit/5a30d0916953afbeedd24a784709e762cc3879cd"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nautobot/nautobot/commit/c2b766966d814a7141f62c7bc90c85fefb7892ee"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/nautobot/nautobot"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nautobot/nautobot/releases/tag/v2.4.33"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nautobot/nautobot/releases/tag/v3.1.2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Nautobot: Object bulk rename UI actions vulnerable to denial of service by crafted regular expression (REDoS)"
}

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.

Action not permitted

PYSEC-2026-2226

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

GHSA-QRPW-GJVH-X5GM

Impact

Patches

Workarounds

References

Tags

Sightings

Nomenclature