# CVE-2026-94488: telegram-desktop: Telegram Desktop before 6.9.4 allows XSS in the HTML exporter

CVE-2026-94488 is fixed in telegram-desktop on 1 platform by DEBIAN-CVE-2026-94488 (version 5.7.2+ds-6), released September 21, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-94488
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0014
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 21, 2026

## Description

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).

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | telegram-desktop Debian 14 | 5.7.2+ds-6 | [DEBIAN-CVE-2026-94488](https://patchblox.com/security/data/fix/linux/debian-cve-2026-94488.md) | Sep 21, 2026 |

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Data as of 2026-11-09T07:25:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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