DEBIAN-CVE-2026-55830
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.
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/versions6.2-1Source reference:
/affected/0/versions8.0-1Source reference:
/affected/0/versions8.1-1Source reference:
/affected/0/versions8.4-1Source 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/versions8.1-1Source reference:
/affected/1/versions8.4-1Source 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/versions8.1-1Source 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
- Added to Heist Feed
- Publisher date