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CVE-2026-87874

8.1, high

Red Hat Ceph Storage 5 Deserialization of Untrusted Data Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
8.1, high high CVSS v3.1
EPSS, next 30 days
0.7% higher than 52.9% of scored CVEs
Exploitation
No public evidence
Published
9 Sept 2026a month ago

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.

Details

Vendor
Red Hat
Product
Red Hat Ceph Storage 5
Weakness
CWE-502 (opens in a new tab)
Status
Awaiting analysis
Updated
9 Sept 2026
Assigner
secalert@redhat.com

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References 2

Advisories 1

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Red Hat CVEs

Every Red Hat CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2021-3560 Red Hat Polkit Incorrect Authorization Vulnerability KEV EPSS 24% 7.8, high
  • CVE-2021-4034 Red Hat Polkit Out-of-Bounds Read and Write Vulnerability KEV EPSS 95% 7.8, high
  • CVE-2018-14667 Red Hat JBoss RichFaces Framework Expression Language Injection Vulnerability KEV EPSS 74% 9.8, critical
  • CVE-2017-12149 Red Hat JBoss Application Server Remote Code Execution Vulnerability KEV EPSS 91% 9.8, critical
  • CVE-2015-5287 Red Hat Automatic Bug Reporting Tool Privilege Escalation Vulnerability KEV EPSS 5% 7.8, high
  • CVE-2015-3246 Red Hat Libuser Race Condition Vulnerability KEV EPSS 9% 7.4, high
  • CVE-2010-1871 Red Hat Linux JBoss Seam 2 Remote Code Execution Vulnerability KEV EPSS 83% 8.8, high
  • CVE-2010-0738 Red Hat JBoss Authentication Bypass Vulnerability KEV EPSS 75% 5.3, medium

Beyond this page

Is CVE-2026-87874 in your network?

This page tells you how dangerous CVE-2026-87874 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.