{"id":"CVE-2026-1337","title":"Insufficient escaping of unicode characters in query log in Neo4j Enterprise and Community editions prior to 2026.01 can lead to XSS if the user opens the logs in a tool that treats them as HTML","summary":"Insufficient escaping of unicode characters in query log in Neo4j Enterprise and Community editions prior to 2026.01 can lead to XSS if the user opens the logs in a tool that treats them as HTML. There is no security impact on Neo4j prod…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","cwe":["CWE-117"],"vendor":"neo4j","product":"neo4j","affected":["neo4j < 2026.01.0"],"patched":["neo4j 2026.01.0"],"published":"2026-02-06","updated":"2026-08-28","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-1337","references":[{"url":"https://github.com/JoakimBulow/CVE-2026-1337","label":"3b236295-4ccd-4a1f-a1c1-a72eecc8d7b6"}],"tags":["nvd","exploit-available"],"epss":0.00232,"epssPercentile":0.14324,"ingestedAt":"2026-08-28T16:22:14.478Z","exploits":{"github":2,"githubRepos":["https://github.com/JoakimBulow/CVE-2026-1337","https://github.com/George0Papasotiriou/CVE-2026-1337-AI-Coding-Assistant-Prompt-Injection-to-Sandbox-Escape"],"checkedAt":"2026-09-21T15:27:58.624Z"},"exploitAvailable":true,"slug":"CVE-2026-1337","body":"## Overview\n\nInsufficient escaping of unicode characters in query log in Neo4j Enterprise and Community editions prior to 2026.01 can lead to XSS if the user opens the logs in a tool that treats them as HTML. There is no security impact on Neo4j products, but this advisory is released as a precaution to treat the logs as plain text if using versions prior to 2026.01.\n\nProof of concept exploit:  https://github.com/JoakimBulow/CVE-2026-1337\n\n## Affected\n\n- `neo4j < 2026.01.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `neo4j 2026.01.0`","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":4947,"id":"CVE-2026-1337","ts":1788887218472,"field":"exploit_available","old":"false","new":"true"},{"seq":3830,"id":"CVE-2026-1337","ts":1788886351350,"field":"exploit_available","old":"true","new":"false"},{"seq":2667,"id":"CVE-2026-1337","ts":1788883016039,"field":"exploit_available","old":"false","new":"true"},{"seq":1696,"id":"CVE-2026-1337","ts":1788882420378,"field":"exploit_available","old":"true","new":"false"},{"seq":804,"id":"CVE-2026-1337","ts":1788881854043,"field":"exploit_available","old":"false","new":"true"}]}