{"cve":"CVE-2026-44885","nvd":{"published":"2026-05-28T22:16:59.803","modified":"2026-07-21T10:10:00.103","status":"Analyzed","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L","score":5.5},"cwes":["CWE-22"],"references":["https://github.com/portainer/portainer-suite/pull/1875","https://github.com/portainer/portainer/security/advisories/GHSA-m8fg-67j7-cx4v"],"products":["portainer:portainer"],"source":"nvd","synced_at":"2026-10-19T22:36:28.938604137+00:00"},"epss":{"cve":"CVE-2026-44885","score":0.00606,"percentile":0.49012,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-m8fg-67j7-cx4v","url":"https://osv.dev/vulnerability/GHSA-m8fg-67j7-cx4v","summary":"Portainer has a path traversal in backup archive extraction that allows arbitrary file write","modified":"2026-07-07T20:41:18.673043752Z","packages":[{"ecosystem":"Go","name":"github.com/portainer/portainer","purl":"pkg:golang/github.com/portainer/portainer","ranges":[">=2.33.0 <2.33.8"],"fixed":["2.33.8"]}]},{"id":"GO-2026-5498","url":"https://osv.dev/vulnerability/GO-2026-5498","summary":"Portainer has a path traversal in backup archive extraction that allows arbitrary file write in github.com/portainer/portainer","modified":"2026-07-07T20:30:14.863696732Z","packages":[{"ecosystem":"Go","name":"github.com/portainer/portainer","purl":"pkg:golang/github.com/portainer/portainer","ranges":["all versions"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}