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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 released patched versions of python-pyasn1 (0.6.2-1.el10_0.2) for Red Hat Enterprise Linux 10.0 Extended Update Support across multiple architectures. Users should apply these updates promptly following Red Hat's official guidance at https://access.redhat.com/articles/11258 to remediate the vulnerability. No additional mitigation steps are indicated.

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 10.0 Extended Update Support and related variants. The vulnerability is rated as important by Red Hat Product Security. A security update is available to address this issue.

References

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