Detections
Analytics

SCA: security update for activestorage (GHSA-hfr4-8rjc-97m2)

medium Tenable Cloud Security Plugin ID 478952

Description

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

 - Active Storage makes it simple to upload and reference files in cloud services and attach those files to
 Active Record objects. Prior to 8.1.4.1 and 8.0.5.2,
 ActiveStorage::Service::GCSService#url_for_direct_upload does not bind the declared content length into
 the signed direct-upload URL, and #headers_for_direct_upload returns no length constraint, so the URL
 authorizes an upload body of any size. A direct-upload client could store a file larger than the byte_size
 it declared, and the resulting blob keeps the declared size, possibly bypassing application file size
 validations and quotas. This is the weakness that CVE-2020-8162 fixed in the S3 service. Applications that
 store files in Google Cloud Storage and accept direct uploads are affected. This issue is fixed in
 versions 8.1.4.1 and 8.0.5.2. (CVE-2026-126085)

Solution

Update the activestorage library and its related packages to version 8.0.5.2 or later.

See Also

https://github.com/advisories/GHSA-hfr4-8rjc-97m2

Plugin Details

Severity: Medium

ID: 478952

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 11/11/2026

Updated: 11/11/2026

Risk Information

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-126085

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 11/10/2026

Vulnerability Publication Date: 11/10/2026

Reference Information

CVE: CVE-2026-126085

cwe: CWE-602