Source: swift
Version: 2.35.1-0+deb13u2
Severity: important
Tags: patch security
X-Debbugs-Cc: Debian Security Team <[email protected]>

As per upstream announce at:
https://security.openstack.org/ossa/OSSA-2026-030.html

:Date: July 28, 2026
:CVE: CVE-2026-pending,
      CVE-2026-pending


Affects
~~~~~~~
- Swift: >=2.18.0 <2.35.4, >=2.36.0 <2.36.3, >=2.37.0 <2.37.3, ==2.38.0


Description
~~~~~~~~~~~
Christian Schwede from NVIDIA reported two authorization bypass
vulnerabilities in Swift's S3API middleware. Insufficient validation of
request headers allows an attacker to copy and read objects belonging to
other tenants. The first issue affects the default ``s3_acl=false``
configuration; the second affects deployments with ``s3_acl=true``. Both
require the attacker to know the target container and object names. All
deployments using the S3API middleware with versions between 2.18.0 and the
fixed releases listed below are affected.



Patches
~~~~~~~
- https://review.opendev.org/998948 (2025.1/epoxy)
- https://review.opendev.org/998949 (2025.1/epoxy)
- https://review.opendev.org/998946 (2025.2/flamingo)
- https://review.opendev.org/998947 (2025.2/flamingo)
- https://review.opendev.org/998944 (2026.1/gazpacho)
- https://review.opendev.org/998945 (2026.1/gazpacho)
- https://review.opendev.org/998942 (2026.2/hibiscus (development))
- https://review.opendev.org/998943 (2026.2/hibiscus (development))


Credits
~~~~~~~
- Christian Schwede from NVIDIA


References
~~~~~~~~~~
- https://launchpad.net/bugs/2158733
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-pending
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-pending

-- 
Goutham Pacha Ravi
OpenStack Vulnerability Management Team
https://security.openstack.org/vmt.html

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