SCA: security update for getgrav/grav (GHSA-hmcx-ch82-3fv2)

critical Tenable Self-Hosted Container Security Plugin ID 441196

Description

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

- Grav is a file-based Web platform. Prior to 2.0.0-beta.2, there is a Path Traversal vulnerability within
the FormFlash core component. By manipulating the session_id (passed as __form-flash-id in POST requests),
an unauthenticated attacker can traverse the filesystem to create arbitrary directories and write an
index.yaml file containing attacker-controlled data. This vulnerability can lead to unauthorized
modification of application behavior, potential data integrity issues, and service disruption in
production environments. This vulnerability is fixed in 2.0.0-beta.2. (CVE-2026-42608)

Solution

Update the getgrav/grav library and its related packages to version 2.0.0-beta.2 or later.

See Also

https://github.com/advisories/GHSA-hmcx-ch82-3fv2

Plugin Details

Severity: Critical

ID: 441196

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 5/6/2026

Updated: 6/1/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.64

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-42608

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.2

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

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

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.8

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/5/2026

Vulnerability Publication Date: 5/5/2026

Reference Information

CVE: CVE-2026-42608

cwe: CWE-22