CVE-2026-94488
HighCVSS 8.2Exploitation Probability (EPSS)
Low risk4th percentile - higher than 4% of all known CVEs
Summary
Telegram Desktop before 6.9.4 allows XSS in the HTML exporter. This occurs in button.text.toUtf8 in export_output_html.cpp. Exploitation cannot occur unless HTML export was used by a victim, but the exploit payload can be exported if a message were forwarded into a group by a member.
Risk Assessment
An attacker could inject malicious code that executes when the victim opens the exported HTML file. This could lead to data theft or actions performed in the victim's browser context.
Recommendation
Update Telegram Desktop to version 7.0.1 or later (the first fixed stable version). Avoid opening exported HTML files from untrusted sources.
Other vulnerabilities in Telegram Desktop
See all- CVE-2026-107181High
Telegram Desktop before 7.2.9 contains an IPC record-separator injection vulnerability in Core::Sandbox that allows remote attackers to inject OPEN: records via crafted tg:// links containing unescaped semicolons. Attackers can reach the interpret: scheme handler to upload local files, including tdata session keys, to an attacker channel, enabling account takeover.
- CVE-2021-47793High
Telegram Desktop 2.9.2 contains a denial of service vulnerability that allows attackers to crash the application by sending an oversized message payload. Attackers can generate a 9 million byte buffer and paste it into the messaging interface to trigger an application crash.
Original NVD description (English source)
Telegram Desktop before 6.9.4 allows XSS in the HTML exporter. (The first fixed stable version is 7.0.1.) This occurs in button.text.toUtf8 in export_output_html.cpp. Exploitation cannot occur unless HTML export was used by a victim. However, the exploit payload can be exported if a message were forwarded into a group by a member (it is not necessary for the message author to be a member of a group).
Vulnerability data from NVD (NIST) · CISA KEV · EPSS