CVE-2026-44885
- Source
- https://cve.org/CVERecord?id=CVE-2026-44885
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-44885.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-44885
- Aliases
- Downstream
- Related
- Published
- 2026-05-28T20:56:42Z
- Modified
- 2026-10-16T02:59:42Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L CVSS Calculator
- Summary
- Portainer: Path traversal in backup archive extraction allows arbitrary file write
- Details
-
Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8, Portainer's backup restore feature accepts a .tar.gz archive and extracts it to a target directory on the server. The extraction function (ExtractTarGz in api/archive/targz.go) constructed output paths using filepath.Clean(filepath.Join(outputDirPath, header.Name)). This combination does not prevent directory traversal — a tar entry named ../../etc/cron.d/evil resolves to a path outside the extraction root, so a crafted archive can write files to arbitrary locations on the server filesystem. This vulnerability is fixed in 2.33.8.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-22" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44885.json" }- References
Affected packages
Git / github.com/portainer/portainer
Affected ranges
- Type
- GIT
- Repo
- https://github.com/portainer/portainer
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "2.33.0" }, { "fixed": "2.33.8" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "cpe": "cpe:2.3:a:portainer:portainer:*:*:*:*:community:*:*:*", "range": [ { "introduced": "2.33.0" }, { "fixed": "2.33.8" } ], "source": "CPE_RANGE" } ] }