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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.

PUBLISHED Reserved 2026-03-13 | Published 2026-03-20 | Updated 2026-03-20 | Assigner GitHub_M




HIGH: 8.8CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:L/SA:L

Problem types

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Product status

< 0.2.2
affected

References

github.com/...toring/security/advisories/GHSA-f7cq-gvh6-qr25

github.com/...ommit/269dba165aa42210352628c0db6756f3b8fd3c8a

security.snyk.io/research/zip-slip-vulnerability

cve.org (CVE-2026-32771)

nvd.nist.gov (CVE-2026-32771)

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