Zipline before 4.0.2 contains a predictable filename vulnerability that allows attackers to infer other users' upload filenames by recovering the Math.random generator state. Attackers with five consecutive gfycat-style filenames can reconstruct the random state to predict previous and future filenames until the instance restarts, exposing private uploads.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Diced
  • Zipline

No data.

No data.

References
Link Providers
https://github.com/diced/zipline/security/advisories/GHSA-6rg9-q9ww-w2rw cve-icon cve-icon
https://www.vulncheck.com/advisories/zipline-before-4.0.2-predictable-filenames-via-math-random-state-recovery cve-icon cve-icon
History

Fri, 13 Nov 2026 17:00:00 +0000

Type Values Removed Values Added
First Time appeared Diced
Diced zipline
Vendors & Products Diced
Diced zipline

Fri, 13 Nov 2026 09:45:00 +0000

Type Values Removed Values Added
Description Zipline before 4.0.2 contains a predictable filename vulnerability that allows attackers to infer other users' upload filenames by recovering the Math.random generator state. Attackers with five consecutive gfycat-style filenames can reconstruct the random state to predict previous and future filenames until the instance restarts, exposing private uploads.
Title Zipline before 4.0.2 Predictable Filenames via Math.random State Recovery
Weaknesses CWE-338
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-11-13T09:37:01.263Z

Updated: 2026-11-13T09:37:01.263Z

Reserved: 2026-11-11T22:59:05.981Z

Link: CVE-2025-71461

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-13T10:17:24.100

Modified: 2026-11-13T23:10:00.153

Link: CVE-2025-71461

cve-icon Redhat

No data.