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UnratedFix available

Fix CVE(s): CVE-2026-0864

Type: advisorySources: OSV

* SECURITY UPDATE: configuration file injection via carriage returns in multi-line ConfigParser values (CVE-2026-0864) - debian/patches/CVE-2026-0864.patch: normalize CR and CRLF to LF plus tab continuation at both value-serialisation sites in RawConfigParser.write() in Lib/ConfigParser.py, so a carriage return inside an attacker-controlled value can no longer inject extra keys and sections into the written file; adds the upstream regression test to Lib/test/test_cfgparser.py. - CVE-2026-0864

Products
idle-python2.7, libpython2.7, libpython2.7-dev, libpython2.7-minimal, libpython2.7-stdlib, libpython2.7-testsuite, python2.7, python2.7-dev, python2.7-doc, python2.7-examples, python2.7-minimal
Affected versions
Not specified
Fixed versions
2.7.17-1~18.04ubuntu1.11+tuxcare.els16
CVEs
CVE-2026-0864
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 11:41 UTC · Revision 1

Source evidence

Fix CVE(s): CVE-2026-0864

core-osv · Original source

Published 26 Aug 2026, 08:35 UTC

* SECURITY UPDATE: configuration file injection via carriage returns in multi-line ConfigParser values (CVE-2026-0864) - debian/patches/CVE-2026-0864.patch: normalize CR and CRLF to LF plus tab continuation at both value-serialisation sites in RawConfigParser.write() in Lib/ConfigParser.py, so a carriage return inside an attacker-controlled value can no longer inject extra keys and sections into the written file; adds the upstream regression test to Lib/test/test_cfgparser.py. - CVE-2026-0864

osv:CLSA-2026-1787671144

idle-python2.7

Fixed versions: 2.7.17-1~18.04ubuntu1.11+tuxcare.els16

libpython2.7

Fixed versions: 2.7.17-1~18.04ubuntu1.11+tuxcare.els16

libpython2.7-dev

Fixed versions: 2.7.17-1~18.04ubuntu1.11+tuxcare.els16

libpython2.7-minimal

Fixed versions: 2.7.17-1~18.04ubuntu1.11+tuxcare.els16

libpython2.7-stdlib

Fixed versions: 2.7.17-1~18.04ubuntu1.11+tuxcare.els16

libpython2.7-testsuite

Fixed versions: 2.7.17-1~18.04ubuntu1.11+tuxcare.els16

python2.7

Fixed versions: 2.7.17-1~18.04ubuntu1.11+tuxcare.els16

python2.7-dev

Fixed versions: 2.7.17-1~18.04ubuntu1.11+tuxcare.els16

python2.7-doc

Fixed versions: 2.7.17-1~18.04ubuntu1.11+tuxcare.els16

python2.7-examples

Fixed versions: 2.7.17-1~18.04ubuntu1.11+tuxcare.els16

python2.7-minimal

Fixed versions: 2.7.17-1~18.04ubuntu1.11+tuxcare.els16

Complete source record
{
  "id": "7b00fe7e79ae7d5b4db8ea4a8ba6d4d319c437234dc555210ced45872003d5e7",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1787671144",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Fix CVE(s): CVE-2026-0864",
    "summary": "* SECURITY UPDATE: configuration file injection via carriage returns in multi-line ConfigParser values (CVE-2026-0864) - debian/patches/CVE-2026-0864.patch: normalize CR and CRLF to LF plus tab continuation at both value-serialisation sites in RawConfigParser.write() in Lib/ConfigParser.py, so a carriage return inside an attacker-controlled value can no longer inject extra keys and sections into the written file; adds the upstream regression test to Lib/test/test_cfgparser.py. - CVE-2026-0864",
    "evidence": "osv:CLSA-2026-1787671144",
    "products": [
      {
        "name": {
          "value": "idle-python2.7",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.7.17-1~18.04ubuntu1.11+tuxcare.els16",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libpython2.7",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.7.17-1~18.04ubuntu1.11+tuxcare.els16",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libpython2.7-dev",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.7.17-1~18.04ubuntu1.11+tuxcare.els16",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libpython2.7-minimal",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.7.17-1~18.04ubuntu1.11+tuxcare.els16",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libpython2.7-stdlib",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
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            "evidence": "/affected/4/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libpython2.7-testsuite",
          "evidence": "/affected/5/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
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            "evidence": "/affected/5/ranges"
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        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "python2.7",
          "evidence": "/affected/6/package/name"
        },
        "prerequisites": [],
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            "evidence": "/affected/6/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "python2.7-dev",
          "evidence": "/affected/7/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.7.17-1~18.04ubuntu1.11+tuxcare.els16",
            "evidence": "/affected/7/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "python2.7-doc",
          "evidence": "/affected/8/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.7.17-1~18.04ubuntu1.11+tuxcare.els16",
            "evidence": "/affected/8/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "python2.7-examples",
          "evidence": "/affected/9/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.7.17-1~18.04ubuntu1.11+tuxcare.els16",
            "evidence": "/affected/9/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "python2.7-minimal",
          "evidence": "/affected/10/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.7.17-1~18.04ubuntu1.11+tuxcare.els16",
            "evidence": "/affected/10/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1787671144",
      "aliases": [
        "CLSA-2026-1787671144"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.7.17-1~18.04ubuntu1.11+tuxcare.els16"
                }
              ]
            }
          ],
          "package": {
            "name": "idle-python2.7",
            "purl": "pkg:deb/tuxcare/idle-python2.7?distro=ubuntu-18.04",
            "ecosystem": "TuxCare:Ubuntu:18.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1787671144.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
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                }
              ]
            }
          ],
          "package": {
            "name": "libpython2.7",
            "purl": "pkg:deb/tuxcare/libpython2.7?distro=ubuntu-18.04",
            "ecosystem": "TuxCare:Ubuntu:18.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1787671144.json"
          }
        },
        {
          "ranges": [
            {
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              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.7.17-1~18.04ubuntu1.11+tuxcare.els16"
                }
              ]
            }
          ],
          "package": {
            "name": "libpython2.7-dev",
            "purl": "pkg:deb/tuxcare/libpython2.7-dev?distro=ubuntu-18.04",
            "ecosystem": "TuxCare:Ubuntu:18.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1787671144.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.7.17-1~18.04ubuntu1.11+tuxcare.els16"
                }
              ]
            }
          ],
          "package": {
            "name": "libpython2.7-minimal",
            "purl": "pkg:deb/tuxcare/libpython2.7-minimal?distro=ubuntu-18.04",
            "ecosystem": "TuxCare:Ubuntu:18.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1787671144.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.7.17-1~18.04ubuntu1.11+tuxcare.els16"
                }
              ]
            }
          ],
          "package": {
            "name": "libpython2.7-stdlib",
            "purl": "pkg:deb/tuxcare/libpython2.7-stdlib?distro=ubuntu-18.04",
            "ecosystem": "TuxCare:Ubuntu:18.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1787671144.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.7.17-1~18.04ubuntu1.11+tuxcare.els16"
                }
              ]
            }
          ],
          "package": {
            "name": "libpython2.7-testsuite",
            "purl": "pkg:deb/tuxcare/libpython2.7-testsuite?distro=ubuntu-18.04",
            "ecosystem": "TuxCare:Ubuntu:18.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1787671144.json"
          }
        },
        {
          "ranges": [
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              ]
            }
          ],
          "package": {
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            "purl": "pkg:deb/tuxcare/python2.7?distro=ubuntu-18.04",
            "ecosystem": "TuxCare:Ubuntu:18.04"
          },
          "database_specific": {
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          }
        },
        {
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            {
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              ]
            }
          ],
          "package": {
            "name": "python2.7-dev",
            "purl": "pkg:deb/tuxcare/python2.7-dev?distro=ubuntu-18.04",
            "ecosystem": "TuxCare:Ubuntu:18.04"
          },
          "database_specific": {
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              ]
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          ],
          "package": {
            "name": "python2.7-doc",
            "purl": "pkg:deb/tuxcare/python2.7-doc?distro=ubuntu-18.04",
            "ecosystem": "TuxCare:Ubuntu:18.04"
          },
          "database_specific": {
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        {
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            {
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              ]
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          ],
          "package": {
            "name": "python2.7-examples",
            "purl": "pkg:deb/tuxcare/python2.7-examples?distro=ubuntu-18.04",
            "ecosystem": "TuxCare:Ubuntu:18.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1787671144.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
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                {
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                },
                {
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              ]
            }
          ],
          "package": {
            "name": "python2.7-minimal",
            "purl": "pkg:deb/tuxcare/python2.7-minimal?distro=ubuntu-18.04",
            "ecosystem": "TuxCare:Ubuntu:18.04"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1787671144.json"
          }
        }
      ],
      "modified": "2026-10-26T09:32:03.617172720Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-0864"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/ubuntu18.04els/CLSA-2026-1787671144.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-0864"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-0864",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 449540,
  "published_at": "2026-08-26T08:35:18+00:00"
}