---
title: "CVE-2026-97149\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2026-97149?format=md
keywords: index, follow
---

# CVE-2026-97149

Publication date 24 September 2026

Last updated 24 September 2026

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

Toggle side navigation

## Description

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.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| swift | 26.04 LTS resolute | Needs evaluation |
| 24.04 LTS noble | Needs evaluation |
| 22.04 LTS jammy | Needs evaluation |
| 20.04 LTS focal | Needs evaluation |
| 18.04 LTS bionic | Needs evaluation |
| 16.04 LTS xenial | Needs evaluation |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:
CVSS v4.0

**Base score**

5.3 · Medium

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Attack requirements | None |
  | Privileges required | Low |
  | User interaction | None |
  | Vulnerable system - Confidentiality impact | Low |
  | Vulnerable system - Integrity impact | None |
  | Vulnerable system - Availability impact | None |
  | Subsequent system - Confidentiality impact | None |
  | Subsequent system - Integrity impact | None |
  | Subsequent system - Availability impact | None |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 5.3 · Medium |
  | Base + Threat score | - |
  | Base + Environmental score | - |
  | Base + Threat + Environmental score | - |

**Vector:** CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-97149)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-97149)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2026-97149)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2026-97149)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2026-97149>
* <https://security.openstack.org/ossa/OSSA-2026-041.html>