Description
Zipline 4.3.2 before 4.8.0 contains a rate limit bypass vulnerability that allows unauthenticated attackers to evade throttling by spoofing X-Forwarded-For headers when core.trustProxy is enabled. Attackers can send a different X-Forwarded-For value per request to obtain fresh rate-limit buckets, enabling unlimited guessing of login passwords, TOTP codes, and file and URL passwords.
Metrics
CVSS 3.1 6.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:NWeakness enumeration
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| diced | zipline | >= 4.3.2, < 4.8.0 |
References
- https://github.com/diced/zipline/blob/v4.7.0/src/server/index.ts#L58-L62
- https://github.com/diced/zipline/blob/v4.7.0/src/server/startup/plugins.ts#L70-L73
- https://github.com/diced/zipline/commit/6bac7e6bb18cb37c1d09f91306c1ffbdca00097c
- https://github.com/diced/zipline/releases/tag/v4.8.0
- https://github.com/diced/zipline/security/advisories/GHSA-v938-v8wg-9497
- https://www.vulncheck.com/advisories/zipline-4.3.2-before-4.8.0-rate-limit-bypass-via-spoofed-x-forwarded-for
Timeline
- Published
- Nov 11, 2026
- Last modified
- Nov 11, 2026
- NVD status
- Received