What is the CVSS score of CVE-2026-26023?

CVE-2026-26023 has a CVSS 3.1 base score of 6.1 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

Which versions of AI / ML are affected by CVE-2026-26023?

Organizations using Dify should be aware of moderate risk from CVE-2026-26023, a cross-site scripting vulnerability rated CVSS 6.1.. A patch is available.

Is there a public PoC exploit available for CVE-2026-26023?

Yes, a public proof-of-concept exploit is available for CVE-2026-26023. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-26023?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

AI / ML CVE-2026-26023

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-02-11 security-advisories@github.com

XSS AI / ML Dify

6.1

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

6.1 MEDIUM

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:02 vuln.today

PoC Detected

Feb 13, 2026 - 15:04 vuln.today

Public exploit code

Patch released

Feb 13, 2026 - 15:04 nvd

Patch available

CVE Published

Feb 11, 2026 - 22:15 nvd

MEDIUM 6.1

DescriptionGitHub Advisory

Dify is an open-source LLM app development platform. Prior to 1.13.0, a cross site scripting vulnerability has been found in the web application chat frontend when using echarts. User or llm inputs containing echarts containing a specific javascript payload will be executed. This vulnerability is fixed in 1.13.0.

AnalysisAI

Dify versions prior to 1.13.0 contain a stored cross-site scripting vulnerability in the chat frontend's echarts integration that executes malicious JavaScript payloads embedded in user or LLM-generated inputs. An attacker can exploit this to perform actions in the context of other users' browsers, potentially stealing session tokens or conducting phishing attacks. …

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Vulnerability AssessmentAI

Risk Assessment	CVSS 6.1 (MEDIUM). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	An attacker could exploit this vulnerability to compromise the affected system.
Remediation	A vendor patch is available — apply it immediately. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. …

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CVE-2026-26023 vulnerability details – vuln.today

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