Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
Affects Red HatSource GCVE Database
Mentioned vulnerabilities
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, 11:52 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 44% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- 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 30 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
|
| 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 updated python3.13 RPM packages (version 3.13.15-1.1.hum1) that address these vulnerabilities. Users should apply these updates to mitigate the risk. Since exploitation requires processing untrusted archives, avoiding or restricting such operations can reduce exposure. No additional mitigations are specified by Red Hat.
Description
A security update for Red Hat Hardened Images RPMs addresses multiple vulnerabilities in python3.13, including CVE-2026-15310. The primary issue involves Python's decompression of specially crafted zip files using bzip, LZMA, or Zstandard compression, which may lead to excessive memory allocation and potential denial of service. The vulnerabilities require an application or user to process untrusted archives, limiting the risk to process-level resource exhaustion. Red Hat provides updated python3.13 packages to mitigate these issues.
References
- access.redhat.com/errata/RHSA-2026:65567 (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_65567.json (opens in a new tab)