UnratedFix available

DEBIAN-CVE-2026-6357

Type: advisorySource: OSV1 source record

pip prior to version 26.1 would run self-update check functionality after installing wheel files which required importing well-known Python modules names. These module imports were intentionally deferred to increase startup time of the pip CLI. The patch changes self-update functionality to run before wheels are installed to prevent newly-installed modules from being imported shortly after the installation of a wheel package. Users should still review package contents prior to installation.

Announced 27 Apr 2026Group revision 1

Original source ↗

DEBIAN-CVE-2026-6357

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-6357

python-pip

Source reference: /affected/0/package/name

Affected versions: 23.0.1+dfsg-1
Source reference: /affected/0/versions
23.1.2+dfsg-1
Source reference: /affected/0/versions
23.1.2+dfsg-2
Source reference: /affected/0/versions
23.2+dfsg-1
Source reference: /affected/0/versions
23.2.1+dfsg-1
Source reference: /affected/0/versions
23.3+dfsg-1
Source reference: /affected/0/versions
24.0+dfsg-1
Source reference: /affected/0/versions
24.0+dfsg-2
Source reference: /affected/0/versions
24.1+dfsg-1
Source reference: /affected/0/versions
24.1.1+dfsg-1
Source reference: /affected/0/versions
24.2+dfsg-1
Source reference: /affected/0/versions
24.3.1+dfsg-1
Source reference: /affected/0/versions
25.0+dfsg-1
Source reference: /affected/0/versions
25.0.1+dfsg-1
Source reference: /affected/0/versions
25.1+dfsg-1
Source reference: /affected/0/versions
25.1.1+dfsg-1
Source reference: /affected/0/versions
25.2+dfsg-1
Source reference: /affected/0/versions
25.3+dfsg-1
Source reference: /affected/0/versions
26.0+dfsg-1
Source reference: /affected/0/versions
26.0.1+dfsg-1
Source reference: /affected/0/versions
26.1.1+dfsg-1
Source reference: /affected/0/versions
26.1.2+dfsg-1
Source reference: /affected/0/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

python-pip

Source reference: /affected/1/package/name

Affected versions: 25.1.1+dfsg-1
Source reference: /affected/1/versions
25.2+dfsg-1
Source reference: /affected/1/versions
25.3+dfsg-1
Source reference: /affected/1/versions
26.0+dfsg-1
Source reference: /affected/1/versions
26.0.1+dfsg-1
Source reference: /affected/1/versions
26.1.1+dfsg-1
Source reference: /affected/1/versions
26.1.2+dfsg-1
Source reference: /affected/1/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

python-pip

Source reference: /affected/2/package/name

Affected versions: 25.1.1+dfsg-1
Source reference: /affected/2/versions
25.2+dfsg-1
Source reference: /affected/2/versions
25.3+dfsg-1
Source reference: /affected/2/versions
26.0+dfsg-1
Source reference: /affected/2/versions
26.0.1+dfsg-1
Source reference: /affected/2/versions
Fixed versions: 26.1.1+dfsg-1
Source reference: /affected/2/ranges
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "python-pip",
      "purl": "pkg:deb/debian/python-pip?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "23.0.1+dfsg-1",
      "23.1.2+dfsg-1",
      "23.1.2+dfsg-2",
      "23.2+dfsg-1",
      "23.2.1+dfsg-1",
      "23.3+dfsg-1",
      "24.0+dfsg-1",
      "24.0+dfsg-2",
      "24.1+dfsg-1",
      "24.1.1+dfsg-1",
      "24.2+dfsg-1",
      "24.3.1+dfsg-1",
      "25.0+dfsg-1",
      "25.0.1+dfsg-1",
      "25.1+dfsg-1",
      "25.1.1+dfsg-1",
      "25.2+dfsg-1",
      "25.3+dfsg-1",
      "26.0+dfsg-1",
      "26.0.1+dfsg-1",
      "26.1.1+dfsg-1",
      "26.1.2+dfsg-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6357.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "python-pip",
      "purl": "pkg:deb/debian/python-pip?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "25.1.1+dfsg-1",
      "25.2+dfsg-1",
      "25.3+dfsg-1",
      "26.0+dfsg-1",
      "26.0.1+dfsg-1",
      "26.1.1+dfsg-1",
      "26.1.2+dfsg-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6357.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "26.1.1+dfsg-1"
          }
        ]
      }
    ],
    "package": {
      "name": "python-pip",
      "purl": "pkg:deb/debian/python-pip?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "25.1.1+dfsg-1",
      "25.2+dfsg-1",
      "25.3+dfsg-1",
      "26.0+dfsg-1",
      "26.0.1+dfsg-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6357.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #58123 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 17:38:29 GMT
Publisher date: Mon, 27 Apr 2026 15:16:20 GMT

Read the original announcement

Revision history

25 Oct 2026DEBIAN-CVE-2026-6357 · Revision 1Source updated