# CVE-2026-107181 — Telegram Desktop

> As of 2026-10-07, CVE-2026-107181 is a HIGH-severity vulnerability in Telegram Desktop, CVSS v3.1 8.1, EPSS 0.3% (25.9th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-107181, most recently “PoC Released for Telegram Desktop One-Click Flaw Enabling File Access / Account Takeover (CVE-2026-107181)”.

**Last updated:** 2026-10-07

## What is CVE-2026-107181?

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.

The record classifies CVE-2026-107181 under weakness class [CWE-143](https://cwe.mitre.org/data/definitions/143.html). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs a user to take an action first, and has high impact on confidentiality, integrity. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 3 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 8.1 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N`)
- **CVSS v4.0 base score:** 8.6 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N`)
- **EPSS (FIRST):** 0.3% probability of exploitation in the next 30 days, higher than 25.9% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 7.1/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-10-07

## Is CVE-2026-107181 being exploited?

Weaponised exploit code for CVE-2026-107181 is publicly available. 1 public proof-of-concept repository is tracked for this identifier.

- [trickest/cve](https://github.com/trickest/cve/blob/main/2026/CVE-2026-107181.md) (trickest)

## Affected products and versions

- **Telegram**: Desktop

## How to fix CVE-2026-107181

No vendor patch reference has been recorded for CVE-2026-107181 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-107181

1 tracked threat in the Threadlinqs corpus references CVE-2026-107181, either in the campaign’s CVE list or as an indicator on the campaign record.

- [PoC Released for Telegram Desktop One-Click Flaw Enabling File Access / Account Takeover (CVE-2026-107181)](https://intel.threadlinqs.com/threat/TL-2026-3119) — HIGH · 2026-10-09

## Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories, public proof-of-concept repositories. Last verified by Threadlinqs on 2026-10-09. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [github.com — patch](https://github.com/telegramdesktop/tdesktop/commit/db3405699f8fc3ae28a58d2348b7d13a43c0590a)
- [github.com — release notes](https://github.com/telegramdesktop/tdesktop/releases/tag/v7.2.9)

**Exploit and proof of concept**

- [beaksec.github.io — technical description](https://beaksec.github.io/posts/telegram-desktop-one-click-account-takeover/)

**Technical analysis**

- [github.com — technical description](https://github.com/telegramdesktop/tdesktop/blob/v7.2.8/Telegram/SourceFiles/core/sandbox.cpp#L362-L364)
- [github.com — technical description (support helper)](https://github.com/telegramdesktop/tdesktop/blob/v7.2.8/Telegram/SourceFiles/support/support_helper.cpp#L673-L751)

**Third-party advisory**

- [vulncheck.com — third party advisory](https://www.vulncheck.com/advisories/telegram-desktop-before-7.2.9-ipc-record-injection-file-exfiltration-via-interpret-scheme)

**Issue tracking and product pages**

- [github.com — product](https://github.com/telegramdesktop/tdesktop)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-107181
Full detection coverage and IOCs for threats exploiting CVE-2026-107181 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp