CVE-2026-87874Network attack vector

Remote code execution via poisoned pickle cache

Published Sep 9, 2026 · Updated Sep 10, 2026

Unsafe deserialization in community.general's memcached cache plugin allows remote attackers to execute code on the Ansible controller. The plugin passes memcached values through python-memcached without explicit serialization, so a crafted pickle stored under a predictable fact-cache key is unpickled when read. Exploitation requires a non-default memcached instance that is unauthenticated, reachable across a trust boundary, and later read by the controller.

CVSS severity8.1
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Unsafe deserialization in community.general's memcached cache plugin allows remote attackers to execute code on the Ansible controller. The plugin passes memcached values through python-memcached without explicit serialization, so a crafted pickle stored under a predictable fact-cache key is unpickled when read. Exploitation requires a non-default memcached instance that is unauthenticated, reachable across a trust boundary, and later read by the controller.

The record

CVE
CVE-2026-87874
Published
Sep 9, 2026
Updated
Sep 10, 2026
Vendor
389 Directory Server
Product
Red Hat Ceph Storage 9
Classifications
CWE-502, T1059.006
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

389 Directory Server · Red Hat Ceph Storage 9Affected versions are unavailable in this record.
389 Directory Server · Red Hat OpenStack PlatformAffected versions are unavailable in this record.
389 Directory Server · Red Hat Ceph Storage 5Affected versions are unavailable in this record.

Published CVSS scores

8.1Red HatCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1059.006Python

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo