CVE-2026-85021
Dify Splash Layout Cross-Site Scripting
Description
A vulnerability was determined in langgenius dify 1.13.0. Affected is the function router.replace of the file web/app/(shareLayout)/components/splash.tsx of the component Splash Layout. This manipulation of the argument redirect_url causes cross site scripting. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
INFO
Published Date :
Sept. 3, 2026, 2:20 a.m.
Last Modified :
Sept. 3, 2026, 2:20 a.m.
Remotely Exploit :
No
Source :
None
Affected Products
The following products are affected by CVE-2026-85021
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
Solution
- Update langgenius dify to a patched version.
- Avoid using the affected component.
- Sanitize user-supplied input for redirect_url.
- Validate redirect_url values.
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-2026-85021.
| URL | Resource |
|---|---|
| https://vuldb.com/vuln/398288 | vdb-entry technical-description |
| https://vuldb.com/vuln/398288/cti | signature permissions-required |
| https://vuldb.com/cve/CVE-2026-85021 | third-party-advisory |
| https://vuldb.com/submit/880601 | third-party-advisory |
| https://huntr.com/bounties/8ff349b3-db5f-4b56-9ccf-a19abd96e30f | related |
| https://github.com/langgenius/dify/security/advisories/GHSA-7qgm-pqv4-668x | broken-link |
| https://gist.github.com/TrebledJ/0e8466e5c39a6fb7dca8a3acdfbe2ddc#file-cvd_dify_vuln1_20260705-md | exploit |
| https://github.com/langgenius/dify/ | product |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-85021 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-2026-85021
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-2026-85021 vulnerability anywhere in the article.