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CVE-2025-66471VulnerabilityPublished Updated

Red Hat Security Advisory: resource-agents security update

Affects Red Hat resource-agentsSource GCVE Database

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Not known to be exploited.

Data as of 30 Oct 2026, 20:36 UTC

Severity
High

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS
0.6% chance of exploitation in 30 days – higher than 52% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 3 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

AI-suggested

Red Hat has released an update for the resource-agents packages that addresses CVE-2025-66471. Users of affected Red Hat Enterprise Linux 7 Extended Lifecycle Support variants should apply the update as described in the Red Hat advisory (https://access.redhat.com/articles/11258). Since a fix is available, applying the official update is the recommended mitigation. No additional or alternative mitigations are indicated by the vendor.

Description

A security update for the resource-agents packages in Red Hat Enterprise Linux 7 Extended Lifecycle Support addresses a vulnerability in the urllib3 Streaming API that improperly handles highly compressed data (CVE-2025-66471). The resource-agents provide scripts for Pacemaker and RGManager service managers to operate in high-availability environments. The update is rated as important by Red Hat Product Security. No CVSS score is provided in the advisory. The issue affects several Red Hat Enterprise Linux 7 Extended Lifecycle Support variants, including SAP and high availability products.

References

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