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
Source GCVE Database
Not known to be exploited · CVSS 6.9 Medium : upgrade to 4.6.4 when convenient.
Data as of 13 Nov 2026, 13:04 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 6.9 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 6.5 |
- Patch
- Available – fixed in 4.6.4
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 13 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Upgrade zipline to 4.6.4.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| dicedzipline | Affected
| Fixed in
|
npmziplinepkg:npm/ziplineOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
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.