Zipline before 4.8.0 contains a race condition vulnerability in src/server/routes/raw/[id].ts that allows remote attackers to bypass file maxViews limits through non-atomic view counting
Source GCVE Database
Not known to be exploited · CVSS 6.3 Medium : upgrade to 4.8.0 when convenient.
Data as of 12 Nov 2026, 01:33 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 6.3 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 3.7 |
- Patch
- Available – fixed in 4.8.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 11 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 11 Nov 2026.
What to do
Upgrade zipline to 4.8.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| dicedzipline | Affected
| Fixed in
|
GitHubziplinepkg:github/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 4.8.0 contains a race condition vulnerability in src/server/routes/raw/[id].ts that allows remote attackers to bypass file maxViews limits through non-atomic view counting. Attackers holding a file link can send parallel requests that read the same pre-increment count, viewing view-limited or delete-on-max-views files beyond their limit.
References
- github.com/diced/zipline/security/advisories/GHSA-7xv9-wr46-j578 (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-126935 (opens in a new tab)
- github.com/diced/zipline/commit/1770479d6795ea8700f0ce6ba08a1654d3644c73 (opens in a new tab)
- github.com/diced/zipline/blob/v4.7.0/src/server/routes/raw/%5Bid%5D.ts (opens in a new tab)
- github.com/diced/zipline/releases/tag/v4.8.0 (opens in a new tab)
- vulncheck.com/advisories/zipline-before-4.8.0-maxviews-limit-bypass-via-race-condition (opens in a new tab)