An issue was discovered in middleware.py in OpenStack Swauth through 1.2.0 when used with OpenStack Swift through 2.15.1. The Swift object store and proxy server are saving (unhashed) tokens retrieved from the Swauth middleware authentication mechanism to a log file as part of a GET URI. This allows attackers to bypass authentication by inserting a token into an X-Auth-Token header of a new request. NOTE: github.com/openstack/swauth URLs do not mean that Swauth is maintained by an official OpenStack project team.
CVE-2017-16613
This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 2.3%, top 15% 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
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 9.8(medium)
- EPSS
- 94.3%
- KEV
- Not listed
Published
November 21, 2017
Last Modified
May 13, 2026
Advisory Details (5)
Auto-updated Jun 22, 2026commit 70af7986265a (openstack/swauth)
Fix landed in openstack/swauth commit 70af7986265a — awaiting tagged release
https://github.com/openstack/swauth/commit/70af7986265a3defea054c46efc82d0698917298Bug #1655781 “Swift object/proxy server writing Auth Token to lo...” : Bugs : OpenStack Object Storage (swift)
https://bugs.launchpad.net/swift/+bug/1655781#882314 - swauth: Swift object/proxy server writing swauth Auth Token to log file (CVE-2017-16613) - Debian Bug report logs
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=882314Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| swauth | 1.0.8 ... 1.0.1 (9 versions) | 1.3.0 | — |
Data Freshness Timeline
(refreshed 8× in last 7d / 36× 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.
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- 2026-05-18 23:25 UTCEG score recompute
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Frequently asked(5)
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