SUSE SLES15: libpython3_10-1_0 / python310 / python310-base / python310-curses / etc (SUSE-SU-2026:4630-1)

critical Nessus Plugin ID 365319

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Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4630-1 advisory.

- CVE-2026-7210: `xml.parsers.expat` and `xml.etree.ElementTree` use insufficient entropy for Expat hash- flooding protection (bsc#1264962).
- CVE-2026-15310: memory exhaustion in zipfile in bzip2/LZMA/Zstandard decompression (bsc#1277111).
- CVE-2026-15806: urllib.request.HTTPPasswordMgr credentials for one URL scheme sent over another scheme (bsc#1276223).
- CVE-2026-17084: StringPrep algorithm considered Unicode codepoint attributes outside Unicode 3.2.0 (bsc#1276226).
- CVE-2026-19445: reassigned SNI callbacks with unreferenced SSLContext instances can cause use-after-free (bsc#1283969).
- CVE-2026-19553: omitted server_hostname arguments in wrap_bio() can cause silent hostname verification bypasses (bsc#1283826).
- CVE-2026-19672: tarfile extraction filter bypass allows creation of directories outside the destination (bsc#1276227).
- CVE-2026-82049: tarfile extraction filters mishandle archives containing a hard link to a symbolic link, allowing file modification and content disclosure (bsc#1280459).

Changes for python310:

- Update to 3.10.22 (final release, upstream EOS)
- Security
- gh-158446: Fix a crash or incorrect output that could occur when formatting a float or complex with a precision close to the platform's INT_MAX. PyOS_double_to_string() now raises ValueError for any precision of that magnitude, regardless of presentation type or value, as the format string parsers already did for precisions above INT_MAX.
- gh-156793: asyncio: loop.start_tls() and loop.create_connection() now validate the server_hostname argument if an ssl.SSLContext is passed with check_hostname set to True, emitting DeprecationWarning if server_hostname is missing. (This will raise ValueError in Python 3.13 and later.) (bsc#1283826, CVE-2026-19553)
- gh-156793: ssl.SSLContext.wrap_bio() now validates its server_side, server_hostname and session arguments similar to ssl.SSLContext.wrap_socket(), but for backward compatiblity reasons emits DeprecationWarning instead of ValueError.
In particular, a context with check_hostname enabled and no server_hostname passed to wrap_bio() now emits DeprecationWarning to indicate the hostname wasn't checked. (In Python 3.13 and later, this raises ValueError.)
- gh-157265: In tarfile, when extracting a link falls back to extracting a member of the archive, skip the member when the filter function returns None when called with the extracted member's name replaced with the link's.
- gh-157190: Fixed a vulnerability in the tarfile data and tar extraction filters where a crafted archive using a hard link to a symbolic link could change the permissions and modification time of a file outside the destination directory, and expose its contents inside the extracted tree. This addresses CVE 2026-82049.(bsc#1280459, CVE-2026-82049)
- gh-157953: Update bundled libexpat to version 2.8.5.
- gh-156002: Bound the amount of data zipfile decompresses per read for members compressed with bzip2, LZMA, or Zstandard, matching the existing limit for deflate. A small archive member could previously expand into an unbounded allocation even when read in small chunks. (bsc#1277111, CVE-2026-15310)
- gh-155999: Fix the tarfile tar and data extraction filters creating directories outside the destination for members whose name leaves the destination and returns to it, such as ../evil/../dest/sub/file. The containment check used the resolved path, but intermediate directories were created from the name as given. (bsc#1276227, CVE-2026-19672)
- gh-156293: Fix a crash in ssl when an sni_callback switches a connection to another SSLContext and the context that carries the callback is no longer referenced by the application. Servers that keep their sni_callback context alive (the usual case when it wraps the listening socket or is stored on the server object) were not affected. This addresses CVE-2026-19445. (bsc#1283969, CVE-2026-19445)
- gh-155292: Change the stringprep module and encodings.idna codec to not consider Unicode codepoint attributes beyond those defined in RFC 3454. (bsc#1276226, CVE-2026-17084)
- gh-155694: Fix CVE-2026-15806 by scoping HTTPPasswordMgr credentials to the URL scheme, preventing credentials stored for an HTTPS URL from being used for a matching HTTP URL, while URIs without a scheme continue to match any scheme. (bsc#1276223, CVE-2026-15806)
- gh-149018: Improved protection against XML hash-flooding attacks in xml.parsers.expat and xml.etree.ElementTree when Python is compiled with libExpat 2.8.0 or later.
(bsc#1264962, CVE-2026-7210)
- Library
- gh-156002: zipfile again reads members through a third-party decompressor installed by monkey-patching the private _get_decompressor() to return an object that only implements old BZ2Decompressor API from Python 3.3. Note that decompressors without needs_input and two-argument decompress() are vulnerable to CVE 2026-15310.
- gh-156353: Fix configparser parsing when using whitespace in delimiters.

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.

Plugin Details

Severity: Critical

ID: 365319

File Name: suse_SU-2026-4630-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 10/13/2026

Updated: 10/13/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

Percentile: 96.3

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-7210

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.2

Threat Score: 7.1

Threat Vector: CVSS:4.0/E:U

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

CVSS Score Source: CVE-2026-19445

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:libpython3_10-1_0, p-cpe:/a:novell:suse_linux:python310-base, p-cpe:/a:novell:suse_linux:python310-curses, p-cpe:/a:novell:suse_linux:python310-dbm, p-cpe:/a:novell:suse_linux:python310-devel, p-cpe:/a:novell:suse_linux:python310-idle, p-cpe:/a:novell:suse_linux:python310-tk, p-cpe:/a:novell:suse_linux:python310-tools, p-cpe:/a:novell:suse_linux:python310

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 10/12/2026

Vulnerability Publication Date: 5/11/2026

Reference Information

CVE: CVE-2026-15310, CVE-2026-15806, CVE-2026-17084, CVE-2026-19445, CVE-2026-19553, CVE-2026-19672, CVE-2026-7210, CVE-2026-82049

IAVA: 2026-A-0549-S, 2026-A-0890

SuSE: SUSE-SU-2026:4630-1

Detections

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