{"apiVersion":"1.0","identifier":"CVE-2026-49864","description":"wetty provides terminal access in browser over http/https. Prior to version 3.0.4, the wetty client decodes a base64 filename from the file-download escape sequence and interpolates it raw into a Toastify HTML string (`escapeMarkup: false`). Any output the victim renders - a `cat`-d file, a tailed log, an SSH MOTD, a `curl` response - that contains `\\x1b[5i...:...\\x1b[4i` runs script in the wetty origin and types attacker-chosen keystrokes into the victim-s SSH session. Version 3.0.4 fixes the issue.","publishedAt":"2026-08-13T20:17:22","lastModifiedAt":"2026-08-18T02:17:27","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-49864","cvssScore":8.6,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","epssProbability":0.0033,"riskScore":0.89,"affectedProduct":"wetty","affectedVersions":"<3.0.4","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-49864","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-49864","en":"https://www.redsauce.net/en/cves/CVE-2026-49864","fr":"https://www.redsauce.net/fr/cves/CVE-2026-49864","pt":"https://www.redsauce.net/pt/cves/CVE-2026-49864","de":"https://www.redsauce.net/de/cves/CVE-2026-49864","sk":"https://www.redsauce.net/sk/cves/CVE-2026-49864","el":"https://www.redsauce.net/el/cves/CVE-2026-49864"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-49864"}}