Vulnerability-Lookup

OESA-2025-1151 (CVE-2025-0938)

Vulnerability from osv_openeuler – Published: 2025-02-21 11:08 – Updated: 2026-08-06 11:08 – Source website

Summary

python3 security update

Details

Python combines remarkable power with very clear syntax. It has modules, classes, exceptions, very high level dynamic data types, and dynamic typing. There are interfaces to many system calls and libraries, as well as to various windowing systems. New built-in modules are easily written in C or C++ (or other languages, depending on the chosen implementation). Python is also usable as an extension language for applications written in other languages that need easy-to-use scripting or automation interfaces.

Security Fix(es):

The Python standard library functions urllib.parse.urlsplit and urlparse accepted domain names that included square brackets which isn't valid according to RFC 3986. Square brackets are only meant to be used as delimiters for specifying IPv6 and IPvFuture hosts in URLs. This could result in differential parsing across the Python URL parser and other specification-compliant URL parsers.(CVE-2025-0938)

Severity

6.8 (Medium)


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

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2025-0938	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "python3-3.11.6-11.oe2403sp1.aarch64.rpm",
          "python3-debug-3.11.6-11.oe2403sp1.aarch64.rpm",
          "python3-debuginfo-3.11.6-11.oe2403sp1.aarch64.rpm",
          "python3-debugsource-3.11.6-11.oe2403sp1.aarch64.rpm",
          "python3-devel-3.11.6-11.oe2403sp1.aarch64.rpm",
          "python3-tkinter-3.11.6-11.oe2403sp1.aarch64.rpm",
          "python3-unversioned-command-3.11.6-11.oe2403sp1.aarch64.rpm"
        ],
        "noarch": [
          "python3-help-3.11.6-11.oe2403sp1.noarch.rpm"
        ],
        "src": [
          "python3-3.11.6-11.oe2403sp1.src.rpm"
        ],
        "x86_64": [
          "python3-3.11.6-11.oe2403sp1.x86_64.rpm",
          "python3-debug-3.11.6-11.oe2403sp1.x86_64.rpm",
          "python3-debuginfo-3.11.6-11.oe2403sp1.x86_64.rpm",
          "python3-debugsource-3.11.6-11.oe2403sp1.x86_64.rpm",
          "python3-devel-3.11.6-11.oe2403sp1.x86_64.rpm",
          "python3-tkinter-3.11.6-11.oe2403sp1.x86_64.rpm",
          "python3-unversioned-command-3.11.6-11.oe2403sp1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP1",
        "name": "python3",
        "purl": "pkg:rpm/openEuler/python3\u0026distro=openEuler-24.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.11.6-11.oe2403sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "Python combines remarkable power with very clear syntax. It has modules, classes, exceptions, very high level dynamic data types, and dynamic typing. There are interfaces to many system calls and libraries, as well as to various windowing systems. New built-in modules are easily written in C or C++ (or other languages, depending on the chosen implementation). Python is also usable as an extension language for applications written in other languages that need easy-to-use scripting or automation interfaces.\r\n\r\nSecurity Fix(es):\n\nThe Python standard library functions `urllib.parse.urlsplit` and `urlparse` accepted domain names that included square brackets which isn\u0026apos;t valid according to RFC 3986. Square brackets are only meant to be used as delimiters for specifying IPv6 and IPvFuture hosts in URLs. This could result in differential parsing across the Python URL parser and other specification-compliant URL parsers.(CVE-2025-0938)",
  "id": "OESA-2025-1151",
  "modified": "2026-08-06T11:08:14Z",
  "published": "2025-02-21T11:08:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1151"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-0938"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "python3 security update",
  "upstream": [
    "CVE-2025-0938"
  ]
}

CVE-2025-0938 (GCVE-0-2025-0938)

Vulnerability from cvelistv5 – Published: 2025-01-31 17:51 – Updated: 2026-07-31 14:05

Title

URL parser allowed square brackets in domain names

Summary

The Python standard library functions `urllib.parse.urlsplit` and `urlparse` accepted domain names that included square brackets which isn't valid according to RFC 3986. Square brackets are only meant to be used as delimiters for specifying IPv6 and IPvFuture hosts in URLs. This could result in differential parsing across the Python URL parser and other specification-compliant URL parsers.

Severity

6.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-01-31 18:50 UTC

CWE

CWE-20 - Improper Input Validation

Assigner

PSF CNA under the mitre root

CNA scorecard B 80/100 over 30 records in the last 180 days details

References

11 references

URL	Tags
https://github.com/python/cpython/issues/105704	issue-tracking
https://github.com/python/cpython/pull/129418	patch
https://mail.python.org/archives/list/security-an…	vendor-advisory
https://github.com/python/cpython/commit/d89a5f6a…	patch
https://github.com/python/cpython/commit/90e526ae…	patch
https://github.com/python/cpython/commit/a7084f60…	patch
https://github.com/python/cpython/commit/526617ed…	patch
https://github.com/python/cpython/commit/b8b4b713…	patch
https://github.com/python/cpython/commit/ff4e5c25…	patch
https://security.netapp.com/advisory/ntap-2025031…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

1 product

Vendor	Product	Version
Python Software Foundation	CPython	Affected: 0 , < 3.9.22 (python) Affected: 3.10.0 , < 3.10.17 (python) Affected: 3.11.0 , < 3.11.12 (python) Affected: 3.12.0 , < 3.12.9 (python) Affected: 3.13.0 , < 3.13.2 (python) Affected: 3.14.0a1 , < 3.14.0a5 (python)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-0938",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-01-31T18:50:16.654297Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-01-31T18:50:29.327Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T20:56:43.285Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://security.netapp.com/advisory/ntap-20250314-0002/"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00013.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "CPython",
          "repo": "https://github.com/python/cpython",
          "vendor": "Python Software Foundation",
          "versions": [
            {
              "lessThan": "3.9.22",
              "status": "affected",
              "version": "0",
              "versionType": "python"
            },
            {
              "lessThan": "3.10.17",
              "status": "affected",
              "version": "3.10.0",
              "versionType": "python"
            },
            {
              "lessThan": "3.11.12",
              "status": "affected",
              "version": "3.11.0",
              "versionType": "python"
            },
            {
              "lessThan": "3.12.9",
              "status": "affected",
              "version": "3.12.0",
              "versionType": "python"
            },
            {
              "lessThan": "3.13.2",
              "status": "affected",
              "version": "3.13.0",
              "versionType": "python"
            },
            {
              "lessThan": "3.14.0a5",
              "status": "affected",
              "version": "3.14.0a1",
              "versionType": "python"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "The Python standard library functions `urllib.parse.urlsplit` and `urlparse` accepted domain names that included square brackets which isn\u0027t valid according to RFC 3986. Square brackets are only meant to be used as delimiters for specifying IPv6 and IPvFuture hosts in URLs. This could result in differential parsing across the Python URL parser and other specification-compliant URL parsers.\u003cbr\u003e"
            }
          ],
          "value": "The Python standard library functions `urllib.parse.urlsplit` and `urlparse` accepted domain names that included square brackets which isn\u0027t valid according to RFC 3986. Square brackets are only meant to be used as delimiters for specifying IPv6 and IPvFuture hosts in URLs. This could result in differential parsing across the Python URL parser and other specification-compliant URL parsers."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "LOW",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "CWE-20 Improper Input Validation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-31T14:05:21.438Z",
        "orgId": "28c92f92-d60d-412d-b760-e73465c3df22",
        "shortName": "PSF"
      },
      "references": [
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/python/cpython/issues/105704"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/pull/129418"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/K4EUG6EKV6JYFIC24BASYOZS4M5XOQIB/"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/commit/d89a5f6a6e65511a5f6e0618c4c30a7aa5aba56a"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/commit/90e526ae67b172ed7c6c56e7edad36263b0f9403"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/commit/a7084f6075c9595ba60119ce8c62f1496f50c568"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/commit/526617ed68cde460236c973e5d0a8bad4de896ba"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/commit/b8b4b713c5f8ec0958c7ef8d29d6711889bc94ab"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/commit/ff4e5c25666f63544071a6b075ae8b25c98b7a32"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "URL parser allowed square brackets in domain names",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "28c92f92-d60d-412d-b760-e73465c3df22",
    "assignerShortName": "PSF",
    "cveId": "CVE-2025-0938",
    "datePublished": "2025-01-31T17:51:35.898Z",
    "dateReserved": "2025-01-31T17:45:10.107Z",
    "dateUpdated": "2026-07-31T14:05:21.438Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

OESA-2025-1151 (CVE-2025-0938)

CVE-2025-0938 (GCVE-0-2025-0938)

Tags

Sightings

Nomenclature

Related by attack behaviour