CVE-2026-32771

CRITICAL

Monitoring is vulnerable to Archive Slip due to missing checks in sanitization

Title source: cna
STIX 2.1

Description

The CTFer.io Monitoring component is in charge of the collection, process and storage of various signals (i.e. logs, metrics and distributed traces). In versions prior to 0.2.2, the sanitizeArchivePath function in pkg/extract/extract.go (lines 248–254) is vulnerable to Path Traversal due to a missing trailing path separator in the strings.HasPrefix check. The extractor allows arbitrary file writes (e.g., overwriting shell configs, SSH keys, kubeconfig, or crontabs), enabling RCE and persistent backdoors. The attack surface is further amplified by the default ReadWriteMany PVC access mode, which lets any pod in the cluster inject a malicious payload. This issue has been fixed in version 0.2.2.

Scores

CVSS v3 9.8
EPSS 0.0003
EPSS Percentile 8.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-22
Status published
Products (3)
ctfer/monitoring < 0.2.2
ctfer-io/monitoring 0 - 0.2.2Go
ctfer-io/monitoring < 0.2.2
Published Mar 20, 2026
Tracked Since Mar 20, 2026