Red Hat Security Advisory: python3.12 security update
Affects Red Hat python3.12Source 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 30 Oct 2026, 06:59 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 21% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 3.15.0b1, 3.14.5rc1, 3.13.14 +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 13 Apr 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
|
| Python Software FoundationCPython | 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
|
| 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 python3.12 packages for Red Hat Enterprise Linux 9 and related products that address these vulnerabilities. Users should apply the provided security updates as detailed in the Red Hat advisory RHSA-2026:10745 and the referenced article https://access.redhat.com/articles/11258. No alternative mitigations or workarounds are specified. Patch status is confirmed as an official fix available from Red Hat.
Description
A security update for python3.12 on Red Hat Enterprise Linux 9 addresses two vulnerabilities: CVE-2026-6100, a use-after-free in decompression modules that can lead to arbitrary code execution or information disclosure, and CVE-2026-4786, a command injection vulnerability in the webbrowser.open() API allowing arbitrary code execution. These issues have been rated as important by Red Hat Product Security. The update is available for multiple Red Hat Enterprise Linux 9 variants and related CodeReady Linux Builder products. No CVSS scores are provided in the advisory. No known exploits in the wild have been reported at this time.
References
- access.redhat.com/errata/RHSA-2026:10745 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (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_10745.json (opens in a new tab)