Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
Affects Red HatSource GCVE Database
Not known to be exploited · CVSS 2.1 Low · fixed in Red Hat package updates : update Red Hat CPython when convenient.
Data as of 30 Oct 2026, 08:02 UTC
- Patch
- Available – fixed in 3.15.0rc2, 3.14.8, 3.13.16 +3
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 25 Aug 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
A security update is available and should be applied by upgrading to the fixed Python 3.12 packages version 3.12.14-1.1.hum1 provided by Red Hat Hardened Images RPMs. No additional mitigations are indicated by the vendor advisory. Systems that do not parse untrusted compressed files or that enforce memory limits via containers or cgroups are at reduced risk.
Description
A security update for Red Hat Hardened Images RPMs addresses multiple vulnerabilities in Python 3.12, including CVE-2026-15310. This particular flaw involves Python decompressing specially crafted zip files using bzip, LZMA, or Zstandard compression methods, which may cause excessive memory allocation leading to denial of service (DoS). The vulnerabilities require an application or user to parse untrusted archives, limiting the impact to process-level resource exhaustion. Red Hat Hardened Images packages for Python 3.12 have been updated to version 3.12.14-1.1.hum1 to fix these issues.
References
- access.redhat.com/errata/RHSA-2026:65531 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-15310 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-15806 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-17084 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-19672 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- images.redhat.com (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_65531.json (opens in a new tab)