Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2026-01-26 14:43

Modified

2026-01-27 09:14

Summary

Header injection in http.cookies.Morsel

Details

When using http.cookies.Morsel, user-controlled cookie values and parameters can allow injecting HTTP headers into messages. Patch rejects all control characters within cookie names, values, and parameters.

JSON

To clipboard Create KEV Entry

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "libpython",
        "purl": "pkg:bitnami/libpython"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.15.0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "type": "CVSS_V4"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-0672"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*"
    ],
    "severity": "Medium"
  },
  "details": "When using http.cookies.Morsel, user-controlled cookie values and parameters can allow injecting HTTP headers into messages. Patch rejects all control characters within cookie names, values, and parameters.",
  "id": "BIT-libpython-2026-0672",
  "modified": "2026-01-27T09:14:53.416Z",
  "published": "2026-01-26T14:43:32.238Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/712452e6f1d4b9f7f8c4c92ebfcaac1705faa440"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/95746b3a13a985787ef53b977129041971ed7f70"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/issues/143919"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/pull/143920"
    },
    {
      "type": "WEB",
      "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/6VFLQQEIX673KXKFUZXCUNE5AZOGZ45M/"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0672"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/62700107418eb2cca3fc88da036a243ea975f172"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/7852d72b653fea0199acf5fc2a84f6f8b84eba8d"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/918387e4912d12ffc166c8f2a38df92b6ec756ca"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/b1869ff648bbee0717221d09e6deff46617f3e85"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "Header injection in http.cookies.Morsel"
}

CVE-2026-0672 (GCVE-0-2026-0672)

Vulnerability from cvelistv5 – Published: 2026-01-20 21:52 – Updated: 2026-02-03 21:52

Title

Header injection in http.cookies.Morsel

Summary

Severity ?

6 (Medium)


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

CWE

CWE-93

Assigner

PSF

References

URL

Tags

	https://github.com/python/cpython/pull/143920	patch
	https://github.com/python/cpython/issues/143919	issue-tracking
	https://mail.python.org/archives/list/security-an…	vendor-advisory
	https://github.com/python/cpython/commit/95746b3a…	patch
	https://github.com/python/cpython/commit/712452e6…	patch
	https://github.com/python/cpython/commit/62700107…	patch
	https://github.com/python/cpython/commit/7852d72b…	patch
	https://github.com/python/cpython/commit/918387e4…	patch
	https://github.com/python/cpython/commit/b1869ff6…	patch

Impacted products

	Vendor	Product	Version
	Python Software Foundation	CPython	Affected: 0 , < 3.13.12 (python) Affected: 3.14.0 , < 3.14.3 (python) Affected: 3.15.0a1 , < 3.15.0 (python)

Credits

Omar M. Hasan

Show details on NVD website

JSON

To clipboard Create KEV Entry

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-0672",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-21T15:40:11.672802Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-21T16:14:06.341Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "http.cookies"
          ],
          "product": "CPython",
          "repo": "https://github.com/python/cpython",
          "vendor": "Python Software Foundation",
          "versions": [
            {
              "lessThan": "3.13.12",
              "status": "affected",
              "version": "0",
              "versionType": "python"
            },
            {
              "lessThan": "3.14.3",
              "status": "affected",
              "version": "3.14.0",
              "versionType": "python"
            },
            {
              "lessThan": "3.15.0",
              "status": "affected",
              "version": "3.15.0a1",
              "versionType": "python"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Omar M. Hasan"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "When using http.cookies.Morsel, user-controlled cookie values and parameters can allow injecting HTTP headers into messages. Patch rejects all control characters within cookie names, values, and parameters."
            }
          ],
          "value": "When using http.cookies.Morsel, user-controlled cookie values and parameters can allow injecting HTTP headers into messages. Patch rejects all control characters within cookie names, values, and parameters."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 6,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-93",
              "description": "CWE-93",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-03T21:52:54.581Z",
        "orgId": "28c92f92-d60d-412d-b760-e73465c3df22",
        "shortName": "PSF"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/pull/143920"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/python/cpython/issues/143919"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/6VFLQQEIX673KXKFUZXCUNE5AZOGZ45M/"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/commit/95746b3a13a985787ef53b977129041971ed7f70"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/commit/712452e6f1d4b9f7f8c4c92ebfcaac1705faa440"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/commit/62700107418eb2cca3fc88da036a243ea975f172"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/commit/7852d72b653fea0199acf5fc2a84f6f8b84eba8d"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/commit/918387e4912d12ffc166c8f2a38df92b6ec756ca"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/commit/b1869ff648bbee0717221d09e6deff46617f3e85"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Header injection in http.cookies.Morsel",
      "x_generator": {
        "engine": "Vulnogram 0.5.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "28c92f92-d60d-412d-b760-e73465c3df22",
    "assignerShortName": "PSF",
    "cveId": "CVE-2026-0672",
    "datePublished": "2026-01-20T21:52:33.925Z",
    "dateReserved": "2026-01-07T17:08:45.326Z",
    "dateUpdated": "2026-02-03T21:52:54.581Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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

Vulnerability from bitnami_vulndb

CVE-2026-0672 (GCVE-0-2026-0672)

Tags

Sightings

Nomenclature