Detections
Analytics

SCA: security update for activesupport (GHSA-2j26-frm8-cmj9)

high Tenable Cloud Security Plugin ID 439122

Description

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

 - Active Support is a toolkit of support libraries and Ruby core extensions extracted from the Rails
 framework. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, Active Support number helpers accept strings
 containing scientific notation (e.g. `1e10000`), which `BigDecimal` expands into extremely large decimal
 representations. This can cause excessive memory allocation and CPU consumption when the expanded number
 is formatted, possibly resulting in a DoS vulnerability. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a
 patch. (CVE-2026-33176)

Solution

Update the activesupport library and its related packages to version 7.2.3.1 or later.

See Also

https://github.com/advisories/GHSA-2j26-frm8-cmj9

Plugin Details

Severity: High

ID: 439122

Version: Revision 1.15

Type: Local

Family: SCA Checks

Published: 3/24/2026

Updated: 7/6/2026

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: 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-2026-33176

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: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 3/23/2026

Vulnerability Publication Date: 3/23/2026

Reference Information

CVE: CVE-2026-33176