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ansible

ansible-core

A vulnerability in the memcached cache plugin of the community.general Ansible collection allows remote code execution. The plugin relies on python-memcached which pickles data without explicit serialization, enabling an attacker with network access to a memcached instance to inject malicious pickle payloads. These payloads are deserialized and executed on the Ansible controller when the poisoned cache is read. The flaw affects multiple specific versions of the Ansible collection.

The memcached cache plugin in the community.general Ansible collection does not perform explicit serialization and depends on python-memcached, which uses Python's pickle mechanism to serialize and deserialize cache values. Since memcached is unauthenticated and cache keys are predictable, an attacker who can access a network-exposed or shared memcached instance can write a crafted pickle payload. When the Ansible controller reads the poisoned fact cache, the malicious payload is deserialized and executed, resulting in remote code execution on the controller. This vulnerability is tracked as CVE-2026-87874 with a CVSS 3.1 score of 8.1 (high impact but medium severity assigned).

A vulnerability in the memcached cache plugin of the community.general Ansible collection allows remote code execution. The plugin relies on python-memcached which pickles data without explicit serialization, enabling an attacker with network access to a memcached instance to inject malicious pickle

A flaw was found in the memcached cache plugin of the community.general Ansible collection. (CVE-2026-87874)

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