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SUSE Linux Python3 Important Command Injection Fix Advisory 2026-1937

SUSE Linux Python3 Important Command Injection Fix Advisory 2026-1937

Linuxsecurity •LinuxSecurity Advisories • May 18, 2026

## This update for python3 fixes the following issue: * 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-2026-4786: 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). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like

## This update for python3 fixes the following issue: * 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-2026-4786: 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). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like

* CVE-2026-1502 ( SUSE ): 5.7

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

* CVE-2026-1502 ( SUSE ): 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

* CVE-2026-1502 ( NVD ): 5.7

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

* CVE-2026-3446 ( SUSE ): 6.0

CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

* CVE-2026-3446 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

* CVE-2026-3446 ( NVD ): 6.0

Announcement ID: SUSE-SU-2026:1937-1 Release Date: 2026-05-18T07:42:02Z Rating: important

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