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SUSE SLES12 Security Update : python3 (SUSE-SU-2026:1937-1)
critical Nessus Plugin ID 315246
Synopsis
The remote SUSE host is missing one or more security updates.Description
The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1937-1 advisory.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).
Tenable has extracted the preceding description block directly from the SUSE security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages.See Also
https://bugzilla.suse.com/1261969
https://bugzilla.suse.com/1261970
https://bugzilla.suse.com/1262098
https://bugzilla.suse.com/1262319
https://bugzilla.suse.com/1262654
https://lists.suse.com/pipermail/sle-updates/2026-May/046546.html
https://www.suse.com/security/cve/CVE-2026-1502
https://www.suse.com/security/cve/CVE-2026-3446
https://www.suse.com/security/cve/CVE-2026-4786
Plugin Details
Severity: Critical
ID: 315246
File Name: suse_SU-2026-1937-1.nasl
Version: 1.1
Type: Local
Agent: unix
Family: SuSE Local Security Checks
Published: 5/19/2026
Updated: 5/19/2026
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N
CVSS Score Source: CVE-2026-6019
CVSS v3
Risk Factor: Medium
Base Score: 6.1
Temporal Score: 5.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
CVSS v4
Risk Factor: Critical
Base Score: 9.1
Threat Score: 8.1
Threat Vector: CVSS:4.0/E:P
Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS Score Source: CVE-2026-6100
Vulnerability Information
CPE: p-cpe:/a:novell:suse_linux:python3-curses, p-cpe:/a:novell:suse_linux:python3-base, p-cpe:/a:novell:suse_linux:python3-tk, cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:python3-devel, p-cpe:/a:novell:suse_linux:libpython3_4m1_0-32bit, p-cpe:/a:novell:suse_linux:libpython3_4m1_0, p-cpe:/a:novell:suse_linux:python3
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 5/18/2026
Vulnerability Publication Date: 2/12/2026
Reference Information
CVE: CVE-2026-1502, CVE-2026-3446, CVE-2026-4786, CVE-2026-6019, CVE-2026-6100
IAVA: 2026-A-0142-S, 2026-A-0360
SuSE: SUSE-SU-2026:1937-1