CVE-2026-5026 | langflow-ai langflow SVG File /api/v1/files/images/ flow_id cross site scripting

VDB-353948 · CVE-2026-5026 · GCVE-0-2026-5026 LANGFLOW-AI LANGFLOW SVG FILE /API/V1/FILES/IMAGES/ FLOW_ID CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 3.5 $0-$5k 1.96 Summaryinfo A vulnerability classified as problematic was found in langflow-ai langflow. Affected by this issue is some unknown functionality of the file /api/v1/files/images/ of the component SVG File Handler. Such manipulation of the argument flow_id leads to cross site scripting. This vulnerability is listed as CVE-2026-5026. The attack may be performed from remote. There is no available exploit. Detailsinfo A vulnerability was found in langflow-ai langflow (version unknown) and classified as problematic. Affected by this issue is an unknown function of the file /api/v1/files/images/ of the component SVG File Handler. The manipulation of the argument flow_id with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes: The '/api/v1/files/images/{flow_id}/{file_name}' endpoint serves SVG files with the 'image/svg+xml' content type without sanitizing their content. Since SVG files can contain embedded JavaScript, an attacker can upload a malicious SVG that executes arbitrary JavaScript when viewed by other users, leading to stored cross-site scripting (XSS). This allows stealing authentication tokens stored in cookies, including JWT access and refresh tokens. The advisory is shared for download at tenable.com. This vulnerability is handled as CVE-2026-5026 since 03/27/2026. The exploitation is known to be easy. The attack may be launched remotely. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Type Artificial Intelligence Software Vendor langflow-ai Name langflow CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 3.5 VulDB Meta Temp Score: 3.5 VulDB Base Score: 3.5 VulDB Temp Score: 3.5 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: Cross site scripting CWE: CWE-79 / CWE-94 / CWE-74 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined 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 03/27/2026 Advisory disclosed 03/27/2026 +0 days CVE reserved 03/27/2026 +0 days VulDB entry created 03/27/2026 +0 days VulDB entry last update Sourcesinfo Advisory: tenable.com Status: Not defined CVE: CVE-2026-5026 (🔒) GCVE (CVE): GCVE-0-2026-5026 GCVE (VulDB): GCVE-100-353948 Entryinfo Created: 03/27/2026 16:58 Changes: 03/27/2026 16:58 (67) Complete: 🔍 Cache ID: 99:E63:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸