Vulnerability · Published Mar 20, 2026 · Assigned by GitHub_M
CVE-2026-32771Monitoring is vulnerable to Archive Slip due to missing checks in sanitization
High 8.8
In plain English
A high-severity path traversal in monitoring from ctfer-io. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/ctfer-io/monitoring | 0.2.2 | GHSA-f7cq-gvh6-qr25 |
| Go | github.com/ctfer-io/monitoring | 0.2.2 | GO-2026-4712 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ctfer-io | monitoring | < 0.2.2 |
Weakness: CWE-22 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:L/SA:L
References
- https://github.com/ctfer-io/monitoring/security/advisories/GHSA-f7cq-gvh6-qr25 x_refsource_CONFIRM
- https://github.com/ctfer-io/monitoring/commit/269dba165aa42210352628c0db6756f3b8fd3c8a x_refsource_MISC
- https://security.snyk.io/research/zip-slip-vulnerability#expandable-socPI9fFAJ-title x_refsource_MISC