CVE-2022-47950: Swift OpenStack Swift XML External Entities Vulnerability

MODERATE
Advisory Identifier: GHSA-274c-rx2j-2v3x
Share
CVSS 6.5
CWE-552 CWE-611
Published
Advisory Summary

CVE-2022-47950 is a MODERATE (CVSS 6.5) openstack swift xml external entities vulnerability (CWE-552: Files or Directories Accessible to External Parties) affecting Swift libraries in the PyPI ecosystem. The issue involves openstack swift xml external entities (xxe) injection. Remediation is available by upgrading affected packages to version 2.28.1, 2.29.2, 2.30.1.

CVE-2022-47950 at a Glance

CVE Identifier CVE-2022-47950
GHSA Identifier GHSA-274c-rx2j-2v3x
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-552: Files or Directories Accessible to External Parties
Affected Product Swift
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 6.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2022-47950

To remediate this vulnerability, upgrade all affected Swift dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

swift fixed: 2.28.1 
pip install swift>=2.28.1
swift fixed: 2.29.2 
pip install swift>=2.29.2
swift fixed: 2.30.1 
pip install swift>=2.30.1
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show swift

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2022-47950, inspect your installed packages using pip:

pip show swift

Analyze the terminal output to locate any version of Swift in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.28.1), your application is affected.

Note: The pip show swift command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-552: Files or Directories Accessible to External Parties, where the product makes files or directories accessible to unauthorized actors, even though they should not be. In Swift, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

An issue was discovered in OpenStack Swift before 2.28.1, 2.29.x before 2.29.2, and 2.30.0. By supplying crafted XML files, an authenticated user may coerce the S3 API into returning arbitrary file contents from the host server, resulting in unauthorized read access to potentially sensitive data. This impacts both s3api deployments (Rocky or later), and swift3 deployments (Queens and earlier, no longer actively developed).

CVE-2022-47950 Affected Swift Versions

3 component(s)
Fixed Versions:
2.28.12.29.22.30.1
Product / Package Ecosystem Affected Versions Fixed Version
swift
pypi/swift
PyPI
< 2.28.1
2.28.1
swift
pypi/swift
PyPI
≥ 2.29.0
< 2.29.2
2.29.2
swift
pypi/swift
PyPI
≥ 2.30.0
< 2.30.1
All 1 versions
2.30.0
2.30.1

References

NVD — CVE-2022-47950 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-47950
Security Fix Commit FIX COMMIT
https://github.com/openstack/swift/commit/12e54391861e7d182d58f89fb88b027e65842640
Security Fix Commit FIX COMMIT
https://github.com/openstack/swift/commit/7d13d1a82e1f5d01205a13184907501b4fcbe2b0
Security Fix Commit FIX COMMIT
https://github.com/openstack/swift/commit/8dd96470a859dc7b189404fb67bd3899ae9c617f
Security Fix Commit FIX COMMIT
https://github.com/openstack/swift/commit/b8467e190f6fc67fd8fb6a8c5e32b2aa6a10fd8e
Security Fix Commit FIX COMMIT
https://github.com/openstack/swift/commit/baa98848451b5c234443a068691e12841a5a8383
Security Fix Commit FIX COMMIT
https://github.com/openstack/swift/commit/c834e7a53d5a33a3fd13ffd954e6f4f4ee953dfc
Security Fix Commit FIX COMMIT
https://github.com/openstack/swift/commit/d8d04ef43c90079d436b2e49617b4425ba39c28e
Security Fix Commit FIX COMMIT
https://github.com/openstack/swift/commit/f10672514217adadfc776d9ea2ffb20a37ce073b
Swift Source Repository REPOSITORY
https://github.com/openstack/swift
launchpad.net/bugs/1998625 WEB
https://launchpad.net/bugs/1998625
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2023/01/msg00021.html
Swift Security Information SECURITY
https://security.openstack.org/ossa/OSSA-2023-001.html
Swift Security Information SECURITY
https://www.debian.org/security/2023/dsa-5327

Frequently Asked Questions

What is CVE-2022-47950?
CVE-2022-47950 is a security vulnerability in Swift involving OpenStack Swift XML external entities (XXE) Injection under CWE-552: Files or Directories Accessible to External Parties.
Which Swift versions are affected?
Affected versions include releases prior to 2.28.1, 2.29.2, 2.30.1 across affected packages: swift.
What version fixes CVE-2022-47950?
Upgrading to 2.28.1, 2.29.2, 2.30.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is swift affected?
Yes, swift is affected in releases prior to 2.28.1, 2.29.2, 2.30.1. Upgrade your dependency to 2.28.1, 2.29.2, 2.30.1 or later.
What is the CVSS score of CVE-2022-47950?
CVE-2022-47950 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2022-47950?
CVE-2022-47950 is classified under CWE-552: Files or Directories Accessible to External Parties (The product makes files or directories accessible to unauthorized actors, even though they should not be.).
How can I check PyPI dependencies for CVE-2022-47950?
Run the dependency tree command: 'pip show swift'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-274c-rx2j-2v3x",
  "modified" : "2025-04-04T19:35:40Z",
  "published" : "2023-01-18T18:30:16Z",
  "aliases" : [ "CVE-2022-47950" ],
  "summary" : "OpenStack Swift XML external entities (XXE) Injection",
  "details" : "An issue was discovered in OpenStack Swift before 2.28.1, 2.29.x before 2.29.2, and 2.30.0. By supplying crafted XML files, an authenticated user may coerce the S3 API into returning arbitrary file contents from the host server, resulting in unauthorized read access to potentially sensitive data. This impacts both s3api deployments (Rocky or later), and swift3 deployments (Queens and earlier, no longer actively developed).",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
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      "name" : "swift"
    },
    "ranges" : [ {
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      "events" : [ {
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      }, {
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      } ]
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    } ],
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  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-47950"
  }, {
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    "type" : "WEB",
    "url" : "https://github.com/openstack/swift/commit/7d13d1a82e1f5d01205a13184907501b4fcbe2b0"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openstack/swift/commit/8dd96470a859dc7b189404fb67bd3899ae9c617f"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openstack/swift/commit/b8467e190f6fc67fd8fb6a8c5e32b2aa6a10fd8e"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openstack/swift/commit/baa98848451b5c234443a068691e12841a5a8383"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openstack/swift/commit/c834e7a53d5a33a3fd13ffd954e6f4f4ee953dfc"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openstack/swift/commit/d8d04ef43c90079d436b2e49617b4425ba39c28e"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openstack/swift/commit/f10672514217adadfc776d9ea2ffb20a37ce073b"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openstack/swift"
  }, {
    "type" : "WEB",
    "url" : "https://launchpad.net/bugs/1998625"
  }, {
    "type" : "WEB",
    "url" : "https://lists.debian.org/debian-lts-announce/2023/01/msg00021.html"
  }, {
    "type" : "WEB",
    "url" : "https://security.openstack.org/ossa/OSSA-2023-001.html"
  }, {
    "type" : "WEB",
    "url" : "https://www.debian.org/security/2023/dsa-5327"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-552", "CWE-611" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-05-14T21:30:33Z",
    "nvd_published_at" : "2023-01-18T17:15:00Z"
  }
}