CVE-2026-6618 | langgenius dify up to 1.13.3 ApiBasedToolSchemaParser parser.py parse_openai_plugin_json_to_tool_bundle url server-side request forgery

VDB-358253 · SUBMIT #792241 · CVE-2026-6618 LANGGENIUS DIFY UP TO 1.13.3 APIBASEDTOOLSCHEMAPARSER PARSER.PY PARSE_OPENAI_PLUGIN_JSON_TO_TOOL_BUNDLE URL SERVER-SIDE REQUEST FORGERY HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.7 $0-$5k 1.47+ Summaryinfo A vulnerability was found in langgenius dify up to 1.13.3. It has been rated as critical. Impacted is the function parse_openai_plugin_json_to_tool_bundle of the file api/core/tools/utils/parser.py of the component ApiBasedToolSchemaParser. The manipulation of the argument url leads to server-side request forgery. This vulnerability is listed as CVE-2026-6618. The attack may be initiated remotely. In addition, an exploit is available. The vendor was contacted early about this disclosure but did not respond in any way. Detailsinfo A vulnerability was found in langgenius dify up to 1.13.3. It has been rated as critical. This issue affects the function parse_openai_plugin_json_to_tool_bundle of the file api/core/tools/utils/parser.py of the component ApiBasedToolSchemaParser. The manipulation of the argument url with an unknown input leads to a server-side request forgery vulnerability. Using CWE to declare the problem leads to CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. Impacted is confidentiality, integrity, and availability. The advisory is shared at gist.github.com. The identification of this vulnerability is CVE-2026-6618. The exploitation is known to be easy. The attack may be initiated remotely. Technical details as well as a public exploit are known. The exploit is available at gist.github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Vendor langgenius Name dify Version 1.13.0 1.13.1 1.13.2 1.13.3 CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 6.3 VulDB Meta Temp Score: 5.7 VulDB Base Score: 6.3 VulDB Temp Score: 5.7 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Server-side request forgery CWE: CWE-918 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Access: Public Status: Proof-of-Concept Download: 🔒 Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/19/2026 Advisory disclosed 04/19/2026 +0 days VulDB entry created 04/19/2026 +0 days VulDB entry last update Sourcesinfo Advisory: gist.github.com Status: Not defined CVE: CVE-2026-6618 (🔒) GCVE (CVE): GCVE-0-2026-6618 GCVE (VulDB): GCVE-100-358253 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 04/19/2026 18:23 Changes: 04/19/2026 18:23 (58) Complete: 🔍 Submitter: Eric-g Cache ID: 99:820:101 Submitinfo Accepted Submit #792241: LangGenius Dify <= v1.13.3 Server-Side Request Forgery (CWE-918) (by Eric-g) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸