CVE-2026-126935 json
Zipline before 4.8.0 maxViews Limit Bypass via Race Condition
published last mo. modified 11h ago also GHSA-7xv9-wr46-j578 , EUVD-2026-124145
Unreviewed: the maintainers' own advisory
Published by the maintainers on their GitHub repository diced/zipline. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.
- cvss
- 3.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- —
- no EPSS score yet
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- diced zipline 4.8.0
Is CVE-2026-126935 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.3 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
| CNA | 4.0 | 6.3 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected products
- diced zipline
Classification
- Weakness
-
- CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
References
-
github.com
/diced/zipline/commit/1770479d6795ea8700f0ce6ba08a1654d3644c73
patch
-
github.com
/diced/zipline/security/advisories/GHSA-7xv9-wr46-j578
vendor-advisory, advisory
-
github.com
/diced/zipline/releases/tag/v4.8.0
release-notes
-
github.com
/diced/zipline/blob/v4.7.0/src/server/routes/raw/%5Bid%5D.ts#L101-L133
technical-description
-
vulncheck.com
/advisories/zipline-before-4.8.0-maxviews-limit-bypass-via-race-condition
third-party-advisory
Sources
- CVE List CVE-2026-126935
- NVD CVE-2026-126935
- Maintainer advisory GHSA-7xv9-wr46-j578
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
The maintainers of diced/zipline published their own advisory on GitHub. Reviewed sources take precedence over it.