CVE-2026-97149

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.
CVSS

No CVSS.

Configurations

No configuration.

History

24 Sep 2026, 19:17

Type Values Removed Values Added
References
  • () http://www.openwall.com/lists/oss-security/2026/09/24/5 -

24 Sep 2026, 03:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-09-24 03:16

Updated : 2026-10-06 18:16


NVD link : CVE-2026-97149

Mitre link : CVE-2026-97149

CVE.ORG link : CVE-2026-97149


JSON object : View

Products Affected

No product.

CWE
CWE-184

Incomplete List of Disallowed Inputs