CVE-2026-50567
- Source
- https://cve.org/CVERecord?id=CVE-2026-50567
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-50567.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-50567
- Aliases
- Downstream
- Related
- Published
- 2026-06-10T17:30:45Z
- Modified
- 2026-09-09T18:26:42Z
- Severity
-
- 7.7 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N CVSS Calculator
- Summary
- Fission: Zip Slip in pkg/utils/zip.go:Unarchive allows fetcher to write outside the destination directory
- Details
-
Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.25.0, Unarchive in pkg/utils/zip.go joined each archive entry name with the destination directory via filepath.Join and wrote the result without checking whether the resolved path stayed under the destination. A zip entry named ../../tmp/evil therefore landed at /tmp/evil. An attacker who could control a Package.Spec.Source.URL or Deployment.URL archive could induce the fetcher (running as the per-environment pod's fission-fetcher sidecar) to write files anywhere that process could reach: into other tenants' /packages// directories, into mounted secret/config volumes, or into the fetcher's own binary. This issue has been patched in version 1.25.0.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-22" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50567.json" }- References
-
- https://github.com/fission/fission/releases/tag/v1.25.0
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50567.json
- https://github.com/fission/fission/security/advisories/GHSA-q6vm-xqc9-v3ff
- https://nvd.nist.gov/vuln/detail/CVE-2026-50567
- https://github.com/fission/fission/pull/3444