In OpenStack Swift before 2.38.2, the tempurl middleware does not reject the X-Copy-From header on PUT requests. A TempURL signature only covers the method, expiry, and path, and thus the list of disallowed headers is the only defense against a signed PUT request changing what the request does. An attacker holding a PUT TempURL for a single object can add an X-Copy-From header naming any object in the same account; the copy middleware copies that object to the destination, and the attacker then reads the victim's data back with a GET TempURL for the destination object. Copies across account boundaries are rejected. Only deployments using the shipped default proxy pipeline (tempurl and copy middleware) with account-level TempURL keys are affected.

The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4801 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-4801-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/          Carlos Henrique Lima Melara     September 29, 2026                            https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : swift     Version        : 2.30.1-0+deb12u3     CVE ID         : CVE-2026-71191 CVE-2026-97149     Debian Bug     : 1142972 1148834

    Two vulnerabilities were discovered in Swift, OpenStack's object     storage service, that could lead to information disclosure.

    CVE-2026-71191 / OSSA-2026-030

    An authorization bypass in the S3API middleware: client-supplied     native Swift control headers (X-Copy-From(-Account),     X-Symlink-Target(-Account), X-Object-Manifest, X-Static-Large-Object)     were not stripped from client requests, allowing a user to bypass S3     ACL checks; sensitive SigV4 x-amz headers were also not required to     be signed.

    CVE-2026-97149 / OSSA-2026-041

    A user holding a PUT tempurl for an object could add an X-Copy-From     header to the request to copy any other object within the account,     resulting in cross-container information disclosure. Such requests     now get a 400 response.

    For Debian 12 bookworm, these problems have been fixed in version     2.30.1-0+deb12u3.

    We recommend that you upgrade your swift packages.

    For the detailed security status of swift please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/swift

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS     Attachment:
    signature.asc     Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 13 host has packages installed that are affected by a vulnerability as referenced in the dsa-6519 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6519-1                   security@debian.org     https://www.debian.org/security/                       Moritz Muehlenhoff     September 26, 2026                    https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : swift     CVE ID         : CVE-2026-97149

    A vulnerability was discovered in the Swift tempurl middleware, which     could result in information disclosure.

    For the stable distribution (trixie), this problem has been fixed in     version 2.35.1-0+deb13u4.

    We recommend that you upgrade your swift packages.

    For the detailed security status of swift please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/swift

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - In OpenStack Swift before 2.38.2, the tempurl middleware does not reject the X-Copy-From header on PUT     requests. A TempURL signature only covers the method, expiry, and path, and thus the list of disallowed     headers is the only defense against a signed PUT request changing what the request does. An attacker     holding a PUT TempURL for a single object can add an X-Copy-From header naming any object in the same     account; the copy middleware copies that object to the destination, and the attacker then reads the     victim's data back with a GET TempURL for the destination object. Copies across account boundaries are     rejected. Only deployments using the shipped default proxy pipeline (tempurl and copy middleware) with     account-level TempURL keys are affected. (CVE-2026-97149)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
350990	Debian dla-4801 : python3-swift - security update	Nessus	Debian Local Security Checks	Local	medium
350780	Debian dsa-6519 : python3-swift - security update	Nessus	Debian Local Security Checks	Local	medium
349683	Linux Distros Unpatched Vulnerability : CVE-2026-97149	Nessus	Misc.	Local	medium

Detections

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CVE-2026-97149

medium

Tenable Plugins

medium

medium

medium