# libpython3.14 3.14.4-1ubuntu0.1: libpython3.14 3.14.4-1ubuntu0.1 for Ubuntu 26.04.1 LTS (resolute)

libpython3.14 3.14.4-1ubuntu0.1, released June 8, 2026, fixes 9 CVEs in libpython3.14. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/ubuntu-resolute-libpython3.14-3.14.4-1ubuntu0.1
- Platform: Linux
- Released: Jun 8, 2026
- Priority: High (Closes CVE-2026-6100, high severity)
- CVEs: 9, exploited: 0, on CISA KEV: 0

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libpython3.14](https://patchblox.com/security/data/product/linux/libpython3.14.md) | Ubuntu 26.04.1 LTS (resolute) | 3.14.4-1ubuntu0.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-6100](https://patchblox.com/security/data/cve/CVE-2026-6100.md) | High | Use-after-free in lzma.LZMADecompressor, bz2.BZ2Decompressor, and gzip.GzipFile after re-use under memory pressure | 9.1 | 0.0058 |  |
| [CVE-2026-1502](https://patchblox.com/security/data/cve/CVE-2026-1502.md) | High | HTTP client proxy tunnel headers not validated for CR/LF | 8.1 | 0.0054 |  |
| [CVE-2026-9669](https://patchblox.com/security/data/cve/CVE-2026-9669.md) | High | bz2.BZ2Decompressor reuse after error can cause a stack buffer overflow | 8.2 | 0.0043 |  |
| [CVE-2026-4786](https://patchblox.com/security/data/cve/CVE-2026-4786.md) | High | Incomplete mitigation of CVE-2026-4519, %action expansion for command injection to webbrowser.open() | 8.1 | 0.0029 |  |
| [CVE-2026-6019](https://patchblox.com/security/data/cve/CVE-2026-6019.md) | High | BaseCookie.js_output() does not neutralize embedded characters | 7.1 | 0.0021 |  |
| [CVE-2026-5713](https://patchblox.com/security/data/cve/CVE-2026-5713.md) | High | Out-of-bounds read/write during remote profiling and asyncio process introspection when connecting to malicious target | 8.1 | 0.0013 |  |
| [CVE-2026-7774](https://patchblox.com/security/data/cve/CVE-2026-7774.md) | Routine | tarfile.data_filter path traversal bypass allows writing outside the extraction directory | 6.9 | 0.0060 |  |
| [CVE-2026-3276](https://patchblox.com/security/data/cve/CVE-2026-3276.md) | Routine | Potential DoS via quadratic complexity in unicodedata.normalize() | 6.3 | 0.0049 |  |
| [CVE-2026-8328](https://patchblox.com/security/data/cve/CVE-2026-8328.md) | Routine | FTP PASV SSRF, ftpcp() does not use actual peer address, trusts server-supplied PASV host address | 5.9 | 0.0046 |  |

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Data as of 2026-11-09T07:25:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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