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SCA: security update for vyper (GHSA-qhr6-mgqr-mchm)

medium Tenable Cloud Security Plugin ID 446740

Description

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

 - Vyper is the Pythonic Programming Language for the Ethereum Virtual Machine. In versions up to and
 including 0.4.2rc1, `concat()` may skip evaluation of side effects when the length of an argument is zero.
 This is due to a fastpath in the implementation which skips evaluation of argument expressions when their
 length is zero. In practice, it would be very unusual in user code to construct zero-length bytestrings
 using an expression with side-effects, since zero-length bytestrings are typically constructed with the
 empty literal `b""`; the only way to construct an empty bytestring which has side effects would be with
 the ternary operator introduced in v0.3.8, e.g. `b"" if self.do_some_side_effect() else b""`. The fix is
 available in pull request 4644 and expected to be part of the 0.4.2 release. As a workaround, don't have
 side effects in expressions which construct zero-length bytestrings. (CVE-2025-47285)

Solution

There is no known solution at this time.

See Also

https://github.com/advisories/GHSA-qhr6-mgqr-mchm

Plugin Details

Severity: Medium

ID: 446740

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 8/31/2026

Updated: 8/31/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.54

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

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

CVSS Score Source: CVE-2025-47285

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.3

Threat Score: 1.7

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/16/2025

Vulnerability Publication Date: 5/15/2025

Reference Information

CVE: CVE-2025-47285

cwe: CWE-691