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CVE-2025-8194VulnerabilityPublished Updated

Red Hat Security Advisory: python3.11 security update

Affects Red Hat python3.11Source GCVE Database

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Authoritative record:CVE-2025-8194· High 7.5

Not known to be exploited · CVSS 7.5 High.

Data as of 3 Nov 2026, 17:47 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Jul 2025

  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 3 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
GitHubpython/cpythonpkg:github/python/cpythonOther threatsAffected
  • 3.10.0 – 3.14.0
5 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Red Hat has released an updated python3.11 package that fixes the infinite loop issue. Users of Red Hat Enterprise Linux 9.2 and related variants should apply the python3.11 update as described in Red Hat advisory RHSA-2025:16012. Details on applying the update are available at https://access.redhat.com/articles/11258. No additional mitigation steps are indicated.

Description

A security update for python3.11 addresses an infinite loop vulnerability in CPython when parsing tarfiles (CVE-2025-8194). This issue could cause the Python interpreter to hang or become unresponsive during tarfile processing. The vulnerability has been rated as having moderate security impact by Red Hat. The update is available for Red Hat Enterprise Linux 9.2 and related variants.

References

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