Detections
Analytics

SCA: security update for psy/psysh (GHSA-4486-gxhx-5mg7)

high Tenable Self-Hosted Container Security Plugin ID 437399

Description

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

 - PsySH is a runtime developer console, interactive debugger, and REPL for PHP. Prior to versions 0.11.23
 and 0.12.19, PsySH automatically loads and executes a `.psysh.php` file from the Current Working Directory
 (CWD) on startup. If an attacker can write to a directory that a victim later uses as their CWD when
 launching PsySH, the attacker can trigger arbitrary code execution in the victim's context. When the
 victim runs PsySH with elevated privileges (e.g., root), this results in local privilege escalation. This
 is a CWD configuration poisoning issue leading to arbitrary code execution in the victim user’s context.
 If a privileged user (e.g., root, a CI runner, or an ops/debug account) launches PsySH with CWD set to an
 attacker-writable directory containing a malicious `.psysh.php`, the attacker can execute commands with
 that privileged user’s permissions, resulting in local privilege escalation. Downstream consumers that
 embed PsySH inherit this risk. For example, Laravel Tinker (`php artisan tinker`) uses PsySH. If a
 privileged user runs Tinker while their shell is in an attacker-writable directory, the `.psysh.php` auto-
 load behavior can be abused in the same way to execute attacker-controlled code under the victim’s
 privileges. Versions 0.11.23 and 0.12.19 patch the issue. (CVE-2026-25129)

See Also

https://github.com/advisories/GHSA-4486-gxhx-5mg7

Plugin Details

Severity: High

ID: 437399

Version: Revision 1.10

Type: Local

Family: SCA Checks

Published: 1/31/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.88

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-25129

CVSS v3

Risk Factor: High

Base Score: 7.3

Temporal Score: 6.6

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/30/2026

Vulnerability Publication Date: 1/30/2026

Reference Information

CVE: CVE-2026-25129

cwe: CWE-427