collection. Although its documentation states that records are stored in JSON
format, the plugin performs no explicit serialization and relies on
python-memcached, which pickles values on write and unpickles them on read.
Because memcached is unauthenticated and cache keys are predictable, an attacker
able to reach a network-exposed or shared memcached instance can write a crafted
pickle payload that is deserialized and executed on the Ansible controller when
the poisoned fact cache is next read, leading to remote code execution.
Analysis and contextual insights are available on OpenCVE Cloud.
Vendor Workaround
Bind memcached to localhost only (the plugin default, 127.0.0.1:11211) and never expose an unauthenticated memcached across a trust boundary; isolate the cache to the controller. Prefer the redis cache plugin (explicit JSON) or the jsonfile/yaml cache plugins where a shared/remote fact cache is required. Treat any host with write access to the fact-cache memcached as trusted to run code on the controller.
Tracking
Sign in to view the affected projects.
No advisories yet.
Wed, 09 Sep 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Wed, 09 Sep 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw was found in the memcached cache plugin of the community.general Ansible collection. Although its documentation states that records are stored in JSON format, the plugin performs no explicit serialization and relies on python-memcached, which pickles values on write and unpickles them on read. Because memcached is unauthenticated and cache keys are predictable, an attacker able to reach a network-exposed or shared memcached instance can write a crafted pickle payload that is deserialized and executed on the Ansible controller when the poisoned fact cache is next read, leading to remote code execution. | |
| Title | Community.general: community.general: memcached cache plugin deserializes untrusted pickle data from memcached, enabling cache-poisoning remote code execution on the ansible controller | |
| First Time appeared |
Redhat
Redhat ceph Storage Redhat openstack |
|
| Weaknesses | CWE-502 | |
| CPEs | cpe:/a:redhat:ceph_storage:5 cpe:/a:redhat:ceph_storage:9 cpe:/a:redhat:openstack:17.1 cpe:/a:redhat:openstack:18.0 |
|
| Vendors & Products |
Redhat
Redhat ceph Storage Redhat openstack |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-09-09T16:59:14.348Z
Reserved: 2026-09-09T13:36:20.508Z
Link: CVE-2026-87874
Updated: 2026-09-09T16:58:59.241Z
Status : Awaiting Analysis
Published: 2026-09-09T17:17:53.093
Modified: 2026-09-09T20:13:26.720
Link: CVE-2026-87874
No data.
OpenCVE Enrichment
Updated: 2026-09-09T19:00:15Z