Red Hat Security Advisory: python3.11 security update
Affects Red Hat python3.11Source GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 7.0 High · fixed in Red Hat package updates : patch Red Hat cpython soon.
Data as of 6 Nov 2026, 01:50 UTC
- Patch
- Available – fixed in 3.15.0a8, 3.14.4, 3.13.13 +3
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 20 Mar 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 5 Nov 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
|
| Python Software FoundationCPython | Affected
| Fixed in
|
| Python Software FoundationCPython | Affected
| Fixed in
|
| Python Software FoundationCPython | Affected
| Fixed in
|
| Python Software FoundationCPython | Affected
| Fixed in
|
| Python Software FoundationCPython | Affected
| 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 updated python3.11 packages for Red Hat Enterprise Linux 9 and related distributions that address these vulnerabilities. Users should apply the provided security updates as detailed in the Red Hat advisory (https://access.redhat.com/articles/11258) to remediate these issues. No additional mitigation steps are indicated beyond applying the official patches.
Description
Red Hat has issued a security advisory for python3.11 addressing multiple vulnerabilities including command-line option injection via webbrowser.open(), arbitrary code execution or information disclosure through use-after-free in decompression modules, and command injection in the webbrowser.open() API. These vulnerabilities affect Red Hat Enterprise Linux 9 and related distributions. The update fixes these issues to prevent potential exploitation.
References
- access.redhat.com/errata/RHSA-2026:19175 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2449649 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2457932 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2458049 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_19175.json (opens in a new tab)