SCA: security update for github.com/tillitis/tkeyclient (GHSA-4w7r-3222-8h6v)

medium Tenable Cloud Security Plugin ID 438903

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- Tillitis TKey Client package is a Go package for a TKey client. Versions 1.2.0 and below contain a
critical bug in the tkeyclient Go module which causes 1 out of every 256 User Supplied Secrets (USS) to be
silently ignored, producing the same Compound Device Identifier (CDI)—and thus the same key material—as if
no USS is provided. This happens because a buffer index error overwrites the USS-enabled boolean with the
first byte of the USS digest, so any USS whose hash starts with 0x00 is effectively discarded. This issue
has been fixed in version 1.3.0. Users unable to upgrade immediately should switch to a USS whose hash
does not begin with a zero byte. (CVE-2026-32953)

Solution

Update the github.com/tillitis/tkeyclient library and its related packages to version 1.3.0 or later.

See Also

https://github.com/advisories/GHSA-4w7r-3222-8h6v

Plugin Details

Severity: Medium

ID: 438903

Version: Revision 1.8

Type: Local

Family: SCA Checks

Published: 3/18/2026

Updated: 6/1/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.8

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

CVSS Score Source: CVE-2026-32953

CVSS v3

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 4.2

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

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

CVSS v4

Risk Factor: Medium

Base Score: 4.7

Threat Score: 2.1

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/17/2026

Vulnerability Publication Date: 3/17/2026

Reference Information

CVE: CVE-2026-32953

cwe: CWE-303