---
id: CVE-2015-1856
aliases:
  - GHSA-cc77-5vw4-7pwg
  - PYSEC-2026-931
title: OpenStack Swift Unauthorized delete of versioned Swift object
summary: OpenStack Swift Unauthorized delete of versioned Swift object
severity: medium
vendor: swift
product: swift
ecosystem: pip
affected:
  - swift < 2.3.0
patched:
  - swift 2.3.0
published: '2022-05-14'
updated: '2026-07-07'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-cc77-5vw4-7pwg'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2015-1856'
  - url: 'https://bugs.launchpad.net/swift/+bug/1430645'
  - url: >-
      https://git.openstack.org/cgit/openstack/swift/commit/?id=5bb7c286ebb4a54e4d2bd5a02845644d1c651183
  - url: >-
      https://git.openstack.org/cgit/openstack/swift/commit/?id=85afe9316570855c87ea731d0627f6f8f2b73264
  - url: >-
      https://git.openstack.org/cgit/openstack/swift/commit/?id=dd9d97458ea007024220a78dba8dd663e8b425d7
  - url: >-
      https://git.openstack.org/cgit/openstack/swift/commit/?id=f6525758ab2456d688430699338993439597a789
  - url: 'https://github.com/openstack/swift'
  - url: >-
      http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163113.html
  - url: >-
      http://lists.openstack.org/pipermail/openstack-announce/2015-April/000349.html
  - url: 'http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00025.html'
  - url: 'http://rhn.redhat.com/errata/RHSA-2015-1681.html'
  - url: 'http://rhn.redhat.com/errata/RHSA-2015-1684.html'
  - url: 'http://rhn.redhat.com/errata/RHSA-2015-1845.html'
  - url: 'http://rhn.redhat.com/errata/RHSA-2015-1846.html'
  - url: >-
      http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
  - url: 'http://www.securityfocus.com/bid/74182'
  - url: 'http://www.ubuntu.com/usn/USN-2704-1'
tags:
  - osv
  - pip
epss: 0.03953
epssPercentile: 0.89988
ingestedAt: '2026-07-08T18:25:48.345Z'
---

## Overview

OpenStack Object Storage (Swift) before 2.3.0, when allow_version is configured, allows remote authenticated users to delete the latest version of an object by leveraging listing access to the x-versions-location container.

## Affected packages

- `swift < 2.3.0`

## Remediation

Upgrade to a patched release:

- `swift 2.3.0`