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CVE-2026-59939VulnerabilityPublished Updated

Red Hat Security Advisory: fence-agents security update

Affects Red Hat fence-agentsSource GCVE Database

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Not known to be exploited.

Data as of 31 Oct 2026, 20:20 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 51% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 30 Jul 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 31 Oct 2026.

What to do

AI-suggested

Red Hat has released updated fence-agents packages that fix this vulnerability. Users should apply the security update as described in the Red Hat advisory RHSA-2026:47736. No additional mitigation steps are indicated beyond applying the official patch.

Description

A security update for the fence-agents packages in Red Hat Enterprise Linux 8 addresses a denial of service vulnerability (CVE-2026-59939) in the httplib2 library. The flaw involves unbounded decompression of HTTP response bodies, which could cause a denial of service. The fence-agents packages provide scripts for remote power management in cluster environments, enabling forced restart and removal of failed or unreachable nodes. Red Hat has rated this update as important and has released patches for multiple Red Hat Enterprise Linux 8 variants.

References

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