{"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","slug":"CVE-2015-1856","body":"## Overview\n\nOpenStack 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.\n\n## Affected packages\n\n- `swift < 2.3.0`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `swift 2.3.0`","depth":"sunlit","depthScore":28,"depthScoreParts":{"impact":27.5,"likelihood":0.8,"exploitation":0,"ransomware":0},"changes":[]}