# CVE-2025-71459: Zipline through 4.3.2 Path Traversal via x-zipline-filename Header

Status: published. Published: 2026-11-13. Updated: 2026-11-13.

Zipline through 4.3.2 contains a path traversal vulnerability that allows authenticated uploaders to write files outside the upload directory by supplying traversal sequences in the x-zipline-filename header. Attackers using the local datasource can create or overwrite files writable by the Zipline process, corrupting application data or disrupting service.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- diced / zipline (zipline): ≥ 0; ≤ 4.3.2 (affected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 7.2 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 8.1 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H; source: CNA: VulnCheck

- CVSS 4.0: 7.2 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/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; source: NVD: disclosure@vulncheck.com

- CVSS 3.1: 8.1 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H; source: NVD: disclosure@vulncheck.com

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-22

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/diced/zipline/security/advisories/GHSA-4jm6-mgwv-fq63 (CNA: VulnCheck; vendor-advisory)

- https://www.vulncheck.com/advisories/zipline-through-4.3.2-path-traversal-via-x-zipline-filename-header (CNA: VulnCheck; third-party-advisory)

- https://github.com/diced/zipline/security/advisories/GHSA-4jm6-mgwv-fq63 (disclosure@vulncheck.com)

- https://www.vulncheck.com/advisories/zipline-through-4.3.2-path-traversal-via-x-zipline-filename-header (disclosure@vulncheck.com)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2025-71459; retrieved 2026-11-13; source updated 2026-11-13

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-71459; retrieved 2026-11-13; source updated 2026-11-13

Revision: ac8c13130125c9aa8c766192dcf46242ac7cf13cc1cac80f943e94a2488d9288

Canonical: https://y2.dev/cve/CVE-2025-71459

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