CVE-2026-97149 (GCVE-0-2026-97149)

Vulnerability from cvelistv5 – Published: 2026-09-24 02:25 – Updated: 2026-10-06 17:42
VLAI
Summary
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.
Severity
5.3 (Medium)
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
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-06 15:53 UTC
CWE
  • CWE-184 - Incomplete List of Disallowed Inputs
Assigner
mitre CNA under the mitre root
CNA scorecard E 29/100 over 2368 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
OpenStack Swift Affected: 2.4.0 , < 2.35.5 (semver)
Affected: 2.36.0 , < 2.36.4 (semver)
Affected: 2.37.0 , < 2.37.4 (semver)
Affected: 2.38.0 , < 2.38.2 (semver)
    cpe:2.3:a:openstack:swift:*:*:*:*:*:*:*:*
    cpe:2.3:a:openstack:swift:*:*:*:*:*:*:*:*
    cpe:2.3:a:openstack:swift:*:*:*:*:*:*:*:*
    cpe:2.3:a:openstack:swift:*:*:*:*:*:*:*:*
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