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CVE-2026-59886VulnerabilityPublished 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, 11:52 UTC

Severity
High

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS
0.6% chance of exploitation in 30 days – higher than 49% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 24 Aug 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 updated resource-agents packages for Red Hat Enterprise Linux 8.8 variants that fix CVE-2026-59886. Users should apply these official updates as described in the Red Hat advisory (RHSA-2026:58811) to remediate the vulnerability. No additional mitigation steps are indicated or required beyond applying the update.

Description

A security update for the resource-agents packages in Red Hat Enterprise Linux addresses a denial of service vulnerability in the pyasn1 library. The flaw, identified as CVE-2026-59886, involves crafted ASN.1 REAL values that can cause a denial of service. The resource-agents scripts support high-availability environments by interfacing with various services. This update is rated as important by Red Hat and applies to Red Hat Enterprise Linux High Availability 8.8 variants.

References

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