Deserialization in Openstack Swift

CVE-2012-4406

OpenStack Object Storage (swift) before 1.7.0 uses the loads function in the pickle Python module unsafely when storing and loading metadata in memcached, which allows remote attackers to execute arbitrary code via a crafted pickle object.

Vulnerability class: Insecure Deserialization

EPSS: 0.047 (89.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2012-4406?
CVE-2012-4406 is a critical-severity vulnerability in Openstack Swift, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2012-10-22.
How severe is CVE-2012-4406?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2012-4406 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.