Red Hat Security Advisory: python3.14 security update
Affects Red Hat python3.14Source GCVE Database
Not known to be exploited · CVSS 7.8 High · fixed in Red Hat package updates : patch Red Hat CPython soon.
Data as of 30 Oct 2026, 00:59 UTC
- Patch
- Available – fixed in 3.15.0b4, 3.14.7, 3.13.15 +3
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 23 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 29 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Python Software FoundationCPython | Affected
| Fixed in
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| Python Software FoundationCPython | Affected
| Fixed in
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| Python Software FoundationCPython | Affected
| Fixed in
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| Python Software FoundationCPython | Affected
| Fixed in
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| Python Software FoundationCPython | Affected
| Fixed in
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| Python Software FoundationCPython | Affected
| Fixed in
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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 python3.14 package for Red Hat Enterprise Linux 9 that fixes this vulnerability. Users should apply the official update as described in the Red Hat advisory and article (https://access.redhat.com/articles/11258). No additional mitigation steps are indicated beyond applying the provided patch.
Description
A security vulnerability (CVE-2026-11940) in Python 3.14's CPython implementation allows a tarfile extraction filter bypass that can escape the intended destination directory. This flaw could potentially be exploited to write files outside the target extraction directory. Red Hat has issued an important security update for python3.14 in Red Hat Enterprise Linux 9 to address this issue.