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Debian dla-4886 : telegram-desktop - security update

high Nessus Plugin ID 377614

Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 12 host has a package installed that is affected by a vulnerability as referenced in the dla-4886 advisory.

 - ------------------------------------------------------------------------- Debian LTS Advisory DLA-4886-1 [email protected] https://www.debian.org/lts/security/ Nicholas Guriev November 06, 2026 https://wiki.debian.org/LTS
 - -------------------------------------------------------------------------

 Package : telegram-desktop Version : 4.6.5+ds-2+deb12u1 CVE ID : CVE-2026-107181 Debian Bug : 1150328

 BeakSec discovered that Telegram Desktop, a fast and secure messaging application, contains an IPC record-separator injection vulnerability.
 It allows a remote attacker to inject OPEN: records via crafted tg:// links containing unescaped semicolons. An attacker can reach the interpret: scheme handler to upload local files, including tdata session keys, to a channel they control, enabling account takeover.

 For Debian 12 bookworm, this problem has been fixed in version 4.6.5+ds-2+deb12u1.

 We recommend that you upgrade your telegram-desktop packages.

 For the detailed security status of telegram-desktop please refer to its security tracker page at:
 https://security-tracker.debian.org/tracker/telegram-desktop

 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the telegram-desktop packages.

See Also

https://packages.debian.org/source/bookworm/telegram-desktop

https://security-tracker.debian.org/tracker/CVE-2026-107181

http://www.nessus.org/u?5cf769aa

Plugin Details

Severity: High

ID: 377614

File Name: debian_DLA-4886.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 11/9/2026

Updated: 11/9/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.6

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-107181

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.6

Threat Score: 7.3

Threat Vector: CVSS:4.0/E:P

Vector: 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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:12.0, p-cpe:/a:debian:debian_linux:telegram-desktop

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/6/2026

Vulnerability Publication Date: 10/7/2026

Reference Information

CVE: CVE-2026-107181