CVE-2026-126933
Zipline 4.0.0 before 4.8.0 Disabled Extensions Upload Filter Bypass via Extension Format Mismatch
Description
Zipline 4.0.0 before 4.8.0 contains an upload filter bypass vulnerability that allows users with upload access to store blocked file types due to extension format mismatch. The upload and partial handlers compare dotted, case-sensitive extensions against undotted disabledExtensions entries, letting authenticated or permitted unauthenticated folder uploaders bypass administrator restrictions.
INFO
Published Date :
Nov. 11, 2026, 11:17 p.m.
Last Modified :
Nov. 11, 2026, 11:17 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-126933
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update Zipline to version 4.8.0 or later.
- Review and harden upload filters.
- Enforce strict file type validation.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-126933.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-126933 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-126933
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-126933 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-126933 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Nov. 11, 2026
Action Type Old Value New Value Added Description Zipline 4.0.0 before 4.8.0 contains an upload filter bypass vulnerability that allows users with upload access to store blocked file types due to extension format mismatch. The upload and partial handlers compare dotted, case-sensitive extensions against undotted disabledExtensions entries, letting authenticated or permitted unauthenticated folder uploaders bypass administrator restrictions. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/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 Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Added CWE CWE-184 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/126xxx/CVE-2026-126933.json">CVE-2026-126933</a> Added Reference https://github.com/diced/zipline/blob/v4.7.0/src/server/routes/api/upload/index.ts#L170 Added Reference https://github.com/diced/zipline/blob/v4.7.0/src/server/routes/api/upload/partial.ts#L294 Added Reference https://github.com/diced/zipline/commit/dbc1fe502130a8ebd95fa04886efec01402e5b5f Added Reference https://github.com/diced/zipline/releases/tag/v4.8.0 Added Reference https://github.com/diced/zipline/security/advisories/GHSA-wwrw-gq56-7wpj Added Reference https://www.vulncheck.com/advisories/zipline-4.0.0-before-4.8.0-disabled-extensions-upload-filter-bypass-via-extension-format-mismatch