OpenStack Object Storage (Swift) before 2.3.1 (Kilo), 2.4.x, and 2.5.x before 2.5.1 (Liberty) do not properly close server 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.
CVE-2016-0738
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 3.8%, top 11% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EG Risk
- 40(Track)EG Risk 40/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity75% × 45%Exploitation4% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 89.0%
- KEV
- Not listed
Published
January 29, 2016
Last Modified
May 6, 2026
References (18)
- secalert@redhathttp://lists.fedoraproject.org/pipermail/package-announce/2016-February/176713.html
- secalert@redhathttp://rhn.redhat.com/errata/RHSA-2016-0128.html
- secalert@redhathttp://rhn.redhat.com/errata/RHSA-2016-0155.html
- secalert@redhathttp://rhn.redhat.com/errata/RHSA-2016-0329.html
- secalert@redhathttp://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- secalert@redhathttp://www.securityfocus.com/bid/81432
- secalert@redhathttps://bugs.launchpad.net/cloud-archive/+bug/1493303
- secalert@redhathttps://github.com/openstack/swift/blob/master/CHANGELOG
- secalert@redhathttps://security.openstack.org/ossa/OSSA-2016-004.html
- af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176713.html
- af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2016-0128.html
- af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2016-0155.html
- af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2016-0329.html
- af854a3a-2127-422b-91ae-364da2661108http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/81432
Vendor Advisories for CVE-2016-0738(6)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2016:0328Red Hat Product SecurityMedium
Red Hat Security Advisory: openstack-swift security update
- RHSA-2016:0329Red Hat Product SecurityMedium
Red Hat Security Advisory: openstack-swift security update
- RHSA-2016:0155Red Hat Product SecurityMedium
Red Hat Security Advisory: openstack-swift security update
- RHSA-2016:0126Red Hat Product SecurityMedium
Red Hat Security Advisory: openstack-swift security update
- RHSA-2016:0127Red Hat Product SecurityMedium
Red Hat Security Advisory: openstack-swift security update
- RHSA-2016:0128Red Hat Product SecurityMedium
Red Hat Security Advisory: openstack-swift security update
Patch Availability(5)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | swift-proxy (1.13.1-0ubuntu1.5) @ trusty | 2026-05-22 | ubuntu |
| redhat | openstack-swift-0:1.13.1-8.el6ost | 2016-03-01 | redhat |
| redhat | openstack-swift-0:1.13.1-8.el7ost | 2016-03-01 | redhat |
| redhat | openstack-swift-0:2.3.0-3.el7ost | 2016-02-09 | redhat |
| redhat | openstack-swift-0:2.2.0-6.el7ost | 2016-02-08 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| swift | — | 2.5.1 | — |
Additional Vendor Advisories
(1)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 13× in last 7d / 43× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-23 01:20 UTCEG score recompute
- 2026-07-23 00:22 UTCEG score recompute
- 2026-07-22 22:00 UTCEG score recompute
- 2026-07-22 14:04 UTCEPSS rescore
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- 2026-05-22 21:34 UTCEG score recompute
- 2026-05-22 21:34 UTCVendor advisory
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Related CVEs(same vendor)
Frequently asked(5)
What is CVE-2016-0738?
When was CVE-2016-0738 disclosed?
Is CVE-2016-0738 actively exploited?
What is the CVSS score of CVE-2016-0738?
How do I remediate CVE-2016-0738?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2016-0738
Is Your Infrastructure Affected by CVE-2016-0738?
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