CVE-2026-32771 Details
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.
A path traversal vulnerability has been identified in the CTFer.io Monitoring component, specifically in versions prior to 0.2.2. The issue arises in the sanitizeArchivePath function within pkg/extract/extract.go, where a missing trailing path separator allows crafted tar archives to write files outside the intended directory. This vulnerability can be exploited using the extractor CLI tool or the extract.DumpOTelCollector library function, leading to arbitrary file writes that could overwrite sensitive files such as shell configurations, SSH keys, kubeconfig, or crontab entries. The default ReadWriteMany PVC access mode further exacerbates the issue by allowing any pod in the cluster to inject malicious payloads.
Users can update to CTFer.io Monitoring version 0.2.2 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 20, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/ctfer-io/monitoring/commit/269dba165aa42210352628c0db6756f3b8fd3c8a | [email protected] | Patch |
| https://github.com/ctfer-io/monitoring/security/advisories/GHSA-f7cq-gvh6-qr25 | [email protected] | ExploitVendor Advisory |
| https://security.snyk.io/research/zip-slip-vulnerability#expandable-socPI9fFAJ-title | [email protected] | ExploitThird Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| ctfer monitoring | < 0.2.2 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 16, 2026 | Initial Analysis | [email protected] |
| Mar 20, 2026 | New CVE Received | [email protected] |