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SUSE-SU-2026:1818-1 Not scored

Security update for python39

This update for python39 fixes the following issues: Security issues fixed: - CVE-2026-1502: HTTP client proxy tunnel headers not validated for CR/LF (bsc#1261969). - CVE-2026-3446: base64 decoding stops at first padded quad by default and ignores other information that could be processed (bsc#1261970). - CVE-2026-3479: improper resource argument validation in `pkgutil.get_data()` can lead to path traversal (bsc#1259989). - CVE-2026-4786: URLs prefixed with `%action` can pass the dash-prefix safety check and allow for command injection (bsc#1262319). - CVE-2026-6019: `BaseCookie.js_output()` does not neutralize characters in cookie values embedded in JS (bsc#1262654). - CVE-2026-6100: use-after-free in `lzma.LZMADecompressor`, `bz2.BZ2Decompressor`, and `gzip.GzipFile` when process is under memory pressure(bsc#1262098). Other updates and bugfixes: - Rewrite structure of Python interpreter packages. `python3*` symbols should be now provided by real python3 packages and its subpackages instead of the virtual provides (bsc#1258364).

Exploit probability Not scored
Published May 12, 2026
Required by Not available
Last source change May 14, 2026

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities SUSE-SU-2026:1818-1

This update for python39 fixes the following issues: Security issues fixed: - CVE-2026-1502: HTTP client proxy tunnel headers not validated for CR/LF (bsc#1261969). - CVE-2026-3446: base64 decoding stops at first padded quad by default and ignores other information that could be processed (bsc#1261970). - CVE-2026-3479: improper resource argument validation in `pkgutil.get_data()` can lead to path traversal (bsc#1259989). - CVE-2026-4786: URLs prefixed with `%action` can pass the dash-prefix safety check and allow for command injection (bsc#1262319). - CVE-2026-6019: `BaseCookie.js_output()` does not neutralize characters in cookie values embedded in JS (bsc#1262654). - CVE-2026-6100: use-after-free in `lzma.LZMADecompressor`, `bz2.BZ2Decompressor`, and `gzip.GzipFile` when process is under memory pressure(bsc#1262098). Other updates and bugfixes: - Rewrite structure of Python interpreter packages. `python3*` symbols should be now provided by real python3 packages and its subpackages instead of the virtual provides (bsc#1258364).

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05 / REFERENCES

Further evidence