CVE-2026-32771
Monitoring is vulnerable to Archive Slip due to missing checks in sanitization
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.
INFO
Published Date :
March 20, 2026, 1:15 a.m.
Last Modified :
April 16, 2026, 1:28 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update CTFer.io Monitoring to version 0.2.2 or later.
- Ensure no pod uses ReadWriteMany PVC access mode.
- Review existing files for unauthorized modifications.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-32771.
| URL | Resource |
|---|---|
| https://github.com/ctfer-io/monitoring/commit/269dba165aa42210352628c0db6756f3b8fd3c8a | Patch |
| https://github.com/ctfer-io/monitoring/security/advisories/GHSA-f7cq-gvh6-qr25 | Exploit Vendor Advisory |
| https://security.snyk.io/research/zip-slip-vulnerability#expandable-socPI9fFAJ-title | Exploit Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-32771 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-32771
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-32771 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-32771 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 16, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:ctfer:monitoring:*:*:*:*:*:go:*:* versions up to (excluding) 0.2.2 Added Reference Type GitHub, Inc.: https://github.com/ctfer-io/monitoring/commit/269dba165aa42210352628c0db6756f3b8fd3c8a Types: Patch Added Reference Type GitHub, Inc.: https://github.com/ctfer-io/monitoring/security/advisories/GHSA-f7cq-gvh6-qr25 Types: Exploit, Vendor Advisory Added Reference Type GitHub, Inc.: https://security.snyk.io/research/zip-slip-vulnerability#expandable-socPI9fFAJ-title Types: Exploit, Third Party Advisory -
New CVE Received by [email protected]
Mar. 20, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-22 Added Reference https://github.com/ctfer-io/monitoring/commit/269dba165aa42210352628c0db6756f3b8fd3c8a Added Reference https://github.com/ctfer-io/monitoring/security/advisories/GHSA-f7cq-gvh6-qr25 Added Reference https://security.snyk.io/research/zip-slip-vulnerability#expandable-socPI9fFAJ-title