Detections
Analytics

SCA: security update for github.com/portainer/portainer (GHSA-rpgq-m5fp-32wr)

high Tenable Cloud Security Plugin ID 441864

Description

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

 - Portainer Community Edition is a lightweight service delivery platform for containerized applications that
 can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8,
 2.39.2, and 2.41.0, Portainer supports deploying stacks from Git repositories. When a Git-backed stack is
 created or updated, Portainer clones the repository using go-git v5, which translates Git blob entries
 with mode 0o120000 (symlink) into real OS symlinks on the host filesystem via os.Symlink. The only entry
 blocked from becoming a symlink is .gitmodules; every other path is created as a symlink without
 validation. Portainer's GET /api/stacks/{id}/file endpoint then reads the stack entry point with
 os.ReadFile, which follows OS symlinks transparently. A repository containing docker-compose.yml as a
 symlink to an arbitrary filesystem path causes the symlink target's contents to be returned verbatim in
 the HTTP response. Any authenticated user with rights to create or update a Git-backed stack — the default
 configuration in Portainer CE — can read arbitrary files accessible to the Portainer process. This
 vulnerability is fixed in 2.33.8, 2.39.2, and 2.41.0. (CVE-2026-44881)

Solution

Update the github.com/portainer/portainer library and its related packages to version 2.33.8 or later.

See Also

https://github.com/advisories/GHSA-rpgq-m5fp-32wr

Plugin Details

Severity: High

ID: 441864

Version: Revision 1.8

Type: Local

Family: SCA Checks

Published: 5/14/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.35

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 7

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

CVSS Score Source: CVE-2026-44881

CVSS v3

Risk Factor: Critical

Base Score: 9.9

Temporal Score: 8.9

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

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

CVSS v4

Risk Factor: High

Base Score: 8.5

Threat Score: 7.3

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/14/2026

Vulnerability Publication Date: 5/14/2026

Reference Information

CVE: CVE-2026-44881