CVE-2025-59422: Broken access control vulnerability in Dify exposes chat messages
Dify
A broken access control flaw in Dify version 1.8.1 allowed users in the same workspace to read other users' chat messages via specific endpoints. The issue has been addressed and patched in version 1.9.0.
disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why
- CVSS
- 6.0
- EPSS
- <0.01 · top 84% · 2026-11-13
- fix status
- Fix status unknown
- first report
- 25 Sep 2025
- last update
- 25 Sep 2025
- CVE ids
Timeline · 1
Sources · 1
Advisories and databases
- 2025-09-25CVE-2025-59422: Dify is an open-source LLM app development platform.NVD · nvd.nist.gov/vuln/detail/CVE-2025-59422
Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.
Classification
- lane
- Patch now
- AI role
- Attack on AI
- categories
- Infrastructure vulnerabilityData leak
- severity
- 2 · Disclosed vulnerability
- fix status
- Fix status unknown
- targets
- Framework / tooling
- mitre atlas
- no technique for these categories
- dates
- happened 25 Sep 2025 · first reported 25 Sep 2025
- origin
- NVDVulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
- record
- confidence 0.95 · created 2026-10-18 06:33Z · updated 2026-10-18 06:33Z
Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned
Copy a brief
This record as a short Markdown brief, for a ticket, a chat or a coding agent.
the brief as text
# CVE-2025-59422: Broken access control vulnerability in Dify exposes chat messages https://gcdradar.vercel.app/incidents/cve-2025-59422-broken-access-control-vulnerability-in-dify-e · AIR-2025-0027 · closed 2025-09-25 - Lane: Patch now - Severity: 2 (Disclosed vulnerability) - Fix status: Fix status unknown - First reported: 2025-09-25 - AI role: Attack on AI - Products: Dify - CVE ids: CVE-2025-59422 - CVSS: 6 ## Summary A broken access control flaw in Dify version 1.8.1 allowed users in the same workspace to read other users' chat messages via specific endpoints. The issue has been addressed and patched in version 1.9.0. ## What to do No action recorded; read the sources below and the vendor's advisory. ## Latest updates - 2025-09-25: CVE-2025-59422: Dify is an open-source LLM app development platform. (https://nvd.nist.gov/vuln/detail/CVE-2025-59422) ## Sources - 2025-09-25 NVD: CVE-2025-59422: Dify is an open-source LLM app development platform. https://nvd.nist.gov/vuln/detail/CVE-2025-59422 Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.
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