CVE-2026-126940

MEDIUM 6.5

Zipline before 4.6.4 Rate Limit Bypass via Query String and Header

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

Zipline before 4.6.4 contains a rate limit bypass vulnerability that allows remote attackers to evade request limits by varying query strings or supplying the x-zipline-p-filename header. Attackers can append differing query parameters to login and file or short-link password verification endpoints to perform credential guessing beyond the intended rate limits.

CWE	CWE-307
Vendor	diced
Product	zipline
Published	Nov 13, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

diced / zipline

0 < 4.6.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/diced/zipline/security/advisories/GHSA-2qgq-hv52-jhqq vulncheck.com: https://www.vulncheck.com/advisories/zipline-before-4.6.4-rate-limit-bypass-via-query-string-and-header

Credits

🔍 de3erve-hunter