Linux · 
Ubuntu · Package update · June 8, 2026
Ubuntu · Package update · June 8, 2026libpython3.14-stdlib 3.14.4-1ubuntu0.1: libpython3.14-stdlib 3.14.4-1ubuntu0.1 for Ubuntu 26.04.1 LTS (resolute)
libpython3.14-stdlib 3.14.4-1ubuntu0.1, released June 8, 2026, fixes 9 CVEs in libpython3.14-stdlib. None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
9
None rated Critical
Exploited
0
None reported
Highest CVSS
9.1
Base score, 0 to 10
Highest EPSS
0.0060
48th percentile
Priority of the 9 CVEs
Patch now 0
Urgent 0
High 6
Routine 3
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| libpython3.14-stdlib | Ubuntu 26.04.1 LTS (resolute) | 3.14.4-1ubuntu0.1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-6100 | Use-after-free in lzma.LZMADecompressor, bz2.BZ2Decompressor, and gzip.GzipFile after re-use under memory pressure | 9.1 | 0.0058 | None reported |
| High | CVE-2026-1502 | HTTP client proxy tunnel headers not validated for CR/LF | 8.1 | 0.0054 | None reported |
| High | CVE-2026-9669 | bz2.BZ2Decompressor reuse after error can cause a stack buffer overflow | 8.2 | 0.0043 | None reported |
| High | CVE-2026-4786 | Incomplete mitigation of CVE-2026-4519, %action expansion for command injection to webbrowser.open() | 8.1 | 0.0029 | None reported |
| High | CVE-2026-6019 | BaseCookie.js_output() does not neutralize embedded characters | 7.1 | 0.0021 | None reported |
| High | CVE-2026-5713 | Out-of-bounds read/write during remote profiling and asyncio process introspection when connecting to malicious target | 8.1 | 0.0013 | None reported |
| Routine | CVE-2026-7774 | tarfile.data_filter path traversal bypass allows writing outside the extraction directory | 6.9 | 0.0060 | None reported |
| Routine | CVE-2026-3276 | Potential DoS via quadratic complexity in unicodedata.normalize() | 6.3 | 0.0049 | None reported |
| Routine | CVE-2026-8328 | FTP PASV SSRF, ftpcp() does not use actual peer address, trusts server-supplied PASV host address | 5.9 | 0.0046 | None reported |
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