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DEBIAN-CVE-2026-55830

Type: advisorySource: OSV1 source record

RestrictedPython is a tool that helps to define a subset of the Python language which allows to provide a program input into a trusted environment. Prior to 8.3, check_function_argument_names() rejected protected guard hook names for regular, variadic, and keyword-only arguments but omitted positional-only arguments, allowing __getattr__, _getitem_, _write_, or _print_ to be shadowed by a local parameter and bypass the embedding application's access policy. This issue is fixed in version 8.3.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-55830

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-2026-55830

restrictedpython

Source reference: /affected/0/package/name

Affected versions
4.0~b3-3

Source reference: /affected/0/versions

6.2-1

Source reference: /affected/0/versions

8.0-1

Source reference: /affected/0/versions

8.1-1

Source reference: /affected/0/versions

8.4-1

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

restrictedpython

Source reference: /affected/1/package/name

Affected versions
8.0-1

Source reference: /affected/1/versions

8.1-1

Source reference: /affected/1/versions

8.4-1

Source reference: /affected/1/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

restrictedpython

Source reference: /affected/2/package/name

Affected versions
8.0-1

Source reference: /affected/2/versions

8.1-1

Source reference: /affected/2/versions

Fixed versions
8.4-1

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": "restrictedpython",
      "purl": "pkg:deb/debian/restrictedpython?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "4.0~b3-3",
      "6.2-1",
      "8.0-1",
      "8.1-1",
      "8.4-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-55830.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "restrictedpython",
      "purl": "pkg:deb/debian/restrictedpython?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "8.0-1",
      "8.1-1",
      "8.4-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-55830.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "8.4-1"
          }
        ]
      }
    ],
    "package": {
      "name": "restrictedpython",
      "purl": "pkg:deb/debian/restrictedpython?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "8.0-1",
      "8.1-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-55830.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#57398 · Revision 1
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Publisher date
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