SUSE SLES16 Security Update : python-PyNaCl (SUSE-SU-2026:21431-1)

medium Nessus Plugin ID 312140

Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLES16 / SLES_SAP16 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2026:21431-1 advisory.

Security fixes:

- CVE-2025-69277: incorrect validation of elliptic curve points certain custom cryptography or untrusted data to crypto_core_ed25519_is_valid_point function (bsc#1255764).

Other fixes:

- update to 1.6.2 (bsc#1255764, CVE-2025-69277):
* Updated libsodium to 1.0.20-stable (2025-12-31 build)
- Update to 1.6.1
* The ``MAKE`` environment variable can now be used to specify the ``make`` binary that should be used in the build process.
- update to 1.6.0:
* BACKWARDS INCOMPATIBLE: Removed support for Python 3.6 and 3.7.
* Added support for the low level AEAD AES bindings.
* Added support for crypto_core_ed25519_from_uniform.
* Update libsodium to 1.0.20-stable (2025-08-27 build).
* Added support for free-threaded Python 3.14.
* Added support for Windows on ARM wheels.
- Update in SLE-15 (bsc#1199282, jsc#PM-3243, jsc#SLE-24629)
- python-PyNaCl requires python-cffi [bsc#1161557]

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected python313-PyNaCl package.

Plugin Details

Severity: Medium

ID: 312140

File Name: suse_SU-2026-21431-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 5/5/2026

Updated: 5/5/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.0

CVSS v2

Risk Factor: Low

Base Score: 3.2

Temporal Score: 2.4

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

CVSS Score Source: CVE-2025-69277

CVSS v3

Risk Factor: Medium

Base Score: 4.5

Temporal Score: 3.9

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:python313-pynacl, cpe:/o:novell:suse_linux:16

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: 4/29/2026

Vulnerability Publication Date: 12/31/2025

Reference Information

CVE: CVE-2025-69277

SuSE: SUSE-SU-2026:21431-1

Detections

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