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CVE-2026-59886VulnerabilityPublished Updated

Red Hat Security Advisory: python-pyasn1 security update

Affects Red Hat python-pyasn1Source 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 25 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 published an official security update that fixes this vulnerability. Users of affected Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions should apply the python-pyasn1 package update (version 0.4.8-6.el9_4.2) as provided in the Red Hat advisory RHSA-2026:59244. Refer to https://access.redhat.com/articles/11258 for update instructions. No additional mitigations are required beyond applying the official patch.

Description

A denial of service vulnerability exists in the python-pyasn1 library due to crafted ASN.1 REAL values. This issue affects Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions and related variants. An update is available to address this vulnerability.

References

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