Alpine: multiple py3-openssl packages: security update to 26.1.0-r0

critical Tenable Cloud Security Plugin ID 440908

Description

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

- pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 0.14.0 and prior to version
26.0.0, if a user provided callback to `set_tlsext_servername_callback` raised an unhandled exception,
this would result in a connection being accepted. If a user was relying on this callback for any security-
sensitive behavior, this could allow bypassing it. Starting in version 26.0.0, unhandled exceptions now
result in rejecting the connection. (CVE-2026-27448)

- pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 22.0.0 and prior to version
26.0.0, if a user provided callback to `set_cookie_generate_callback` returned a cookie value greater than
256 bytes, pyOpenSSL would overflow an OpenSSL provided buffer. Starting in version 26.0.0, cookie values
that are too long are now rejected. (CVE-2026-27459)

Solution

Update the py3-openssl library and its related packages to version 26.1.0-r0 or later.

See Also

https://security.alpinelinux.org/vuln/CVE-2026-27448

https://security.alpinelinux.org/vuln/CVE-2026-27459

https://security.alpinelinux.org/vuln/CVE-2026-40475

Plugin Details

Severity: Critical

ID: 440908

Version: Revision 1.6

Type: Local

Published: 4/27/2026

Updated: 7/2/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: High

Score: 7.6

Percentile: 98.48

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-27459

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

CVSS v4

Risk Factor: Critical

Base Score: 9.2

Threat Score: 7.2

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:H/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 3/16/2026

Reference Information

CVE: CVE-2026-27448, CVE-2026-27459, CVE-2026-40475