Priority HIGH 72
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.
CVSS 4.0HIGH 8.6· Network · No auth · User interaction · EPSS 0.00612 · Published 2026-10-07 · Fixed in 7.2.9 CWE-143
Priority HIGH 71
Telegram Desktop before 6.9.4 allows XSS in the HTML exporter.
CVSS 4.0HIGH 8.3· Local · No auth · User interaction · EPSS 0.00139 · Published 2026-09-21 · Fixed in 6.9.4 CWE-79
Priority HIGH 65
An issue was discovered in the org.telegram.messenger application 4.8.11 for Android.
CVSS 3.0MEDIUM 6.8· Physical · No auth · No interaction · EPSS 0.00428 · Published 2018-10-09 · No fix listed CWE-287
Priority MEDIUM 59
The Telegram app 7.6.2 for iOS allows remote authenticated users to cause a denial of service (application crash) if the victim pastes an attacker-supplied message (e.g., in the Persian language) into a channel or group.
CVSS 3.1MEDIUM 5.7· Network · Low privileges · User interaction · EPSS 0.01177 · Published 2021-04-20 · No fix listed CWE-121
Priority MEDIUM 58
Telegram 9.3.1 and 9.4.0 allows attackers to access restricted files, microphone ,or video recording via the DYLD_INSERT_LIBRARIES flag.
CVSS 3.1MEDIUM 5.5· Local · Low privileges · No interaction · EPSS 0.00517 · Published 2023-05-19 · No fix listed CWE-863
Priority MEDIUM 57
A security vulnerability has been detected in Telegram Desktop up to 6.7.5.
CVSS 4.0MEDIUM 5.3· Network · No auth · User interaction · EPSS 0.00389 · Published 2026-05-03 · Fixed in 6.7.6 CWE-404
Priority MEDIUM 54
Telegram Desktop 2.9.2 contains a denial of service vulnerability that allows attackers to crash the application by sending an oversized message payload.
CVSS 4.0MEDIUM 4.6· Local · No auth · User interaction · EPSS 0.00501 · Published 2026-01-15 · No fix listed CWE-770
Priority MEDIUM 45
Telegram Web K Alpha before 0.7.2 mishandles the characters in a document extension.
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.01252 · Published 2021-09-06 · No fix listed
Priority MEDIUM 45
Telegram Desktop (aka tdesktop) 1.3.16 alpha, when "Use proxy" is enabled, sends credentials and application data in cleartext over the SOCKS5 protocol.
CVSS 3.0CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.01625 · Published 2018-09-28 · No fix listed CWE-522
Priority MEDIUM 44
Telegram Desktop before 1.5.12 on Windows, and the Telegram applications for Android, iOS, and Linux, is vulnerable to an IDN homograph attack when displaying messages containing URLs.
CVSS 3.0HIGH 8.8· Network · No auth · User interaction · EPSS 0.0328 · Published 2019-03-25 · No fix listed
Priority MEDIUM 42
The saveFile method in MediaController.java in the Telegram Messenger application before 2017-12-08 for Android allows directory traversal via a pathname obtained in a file-transfer request from a remote peer, as demonst…
CVSS 3.0HIGH 8.8· Network · No auth · User interaction · EPSS 0.01741 · Published 2017-12-16 · No fix listed CWE-22
Priority LOW 38
Telegram Desktop through 2.1.13 allows a spoofed file type to bypass the Dangerous File Type Execution protection mechanism, as demonstrated by use of the chat window with a filename that lacks an extension.
CVSS 3.1HIGH 7.8· Local · No auth · User interaction · EPSS 0.02281 · Published 2020-08-11 · No fix listed CWE-863
Priority LOW 38
The "secret chat" feature in Telegram 4.9.1 for Android has a "side channel" in which Telegram servers send GET requests for URLs typed while composing a chat message, before that chat message is sent.
CVSS 3.0HIGH 8.1· Network · No auth · No interaction · EPSS 0.01554 · Published 2018-12-24 · No fix listed CWE-918
Priority LOW 36
Telegram Desktop (aka tdesktop) 1.3.14 might allow attackers to cause a denial of service (assertion failure and application exit) via an "Edit color palette" search that triggers an "index out of range" condition.
CVSS 3.0HIGH 7.5· Network · No auth · No interaction · EPSS 0.0147 · Published 2018-09-19 · No fix listed CWE-617
Priority LOW 36
An issue was discovered in Telegram Messenger 2.6 for iOS and 1.8.2 for Android.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.0134 · Published 2017-03-14 · No fix listed CWE-200
Priority LOW 34
EvilVideo vulnerability allows sending malicious apps disguised as videos in Telegram for Android application affecting versions 10.14.4 and older.
CVSS 4.0HIGH 7.1· Network · Low privileges · User interaction · EPSS 0.01375 · Published 2024-07-23 · No fix listed CWE-20
Priority LOW 34
Telegram Android <7.1.0 (2090), Telegram iOS <7.1, and Telegram macOS <7.1 are affected by a Heap Buffer Overflow in the VGradientCache::generateGradientColorTable function of their custom fork of the rlottie library.
CVSS 3.1HIGH 7.1· Local · No auth · User interaction · EPSS 0.01218 · Published 2021-05-18 · No fix listed CWE-787
Priority LOW 34
Telegram Desktop through 2.0.1, Telegram through 6.0.1 for Android, and Telegram through 6.0.1 for iOS allow an IDN Homograph attack via Punycode in a public URL or a group chat invitation URL.
CVSS 3.1MEDIUM 6.5· Network · No auth · User interaction · EPSS 0.02591 · Published 2020-05-01 · No fix listed
Priority LOW 33
Telegram Android <7.1.0 (2090), Telegram iOS <7.1, and Telegram macOS <7.1 are affected by a Stack Based Overflow in the gray_split_cubic function of their custom fork of the rlottie library.
CVSS 3.1HIGH 7.1· Local · No auth · User interaction · EPSS 0.01101 · Published 2021-05-18 · No fix listed CWE-787
Priority LOW 32
Telegram rlottie Numeric Truncation Remote Code Execution Vulnerability.
CVSS 3.0HIGH 7.0· Local · No auth · User interaction · EPSS 0.00178 · Published 2026-10-15 · No fix listed CWE-197
Priority LOW 32
Telegram Desktop (aka tdesktop) 1.3.14, and Telegram 3.3.0.0 WP8.1 on Windows, leaks end-user public and private IP addresses during a call because of an unsafe default behavior in which P2P connections are accepted from…
CVSS 3.0MEDIUM 6.5· Network · Low privileges · No interaction · EPSS 0.01803 · Published 2018-09-29 · No fix listed CWE-200
Priority LOW 30
Telegram v9.6.3 on iOS allows attackers to hide critical information on the User Interface via calling the function SFSafariViewController.
CVSS 3.1MEDIUM 5.3· Network · No auth · No interaction · EPSS 0.00413 · Published 2023-06-29 · No fix listed CWE-1021
Priority LOW 28
Telegram Web 15.3.1 allows XSS via a certain payload derived from a Target Corporation website.
CVSS 3.1MEDIUM 6.1· Network · No auth · User interaction · EPSS 0.00456 · Published 2022-12-06 · No fix listed CWE-79
Priority LOW 28
Telegram Web K Alpha 0.6.1 allows XSS via a document name.
CVSS 3.1MEDIUM 6.1· Network · No auth · User interaction · EPSS 0.00619 · Published 2021-07-27 · No fix listed CWE-79
Priority LOW 28
Telegram Android <7.1.0 (2090), Telegram iOS <7.1, and Telegram macOS <7.1 are affected by a Heap Buffer Overflow in the LOTGradient::populate function of their custom fork of the rlottie library.
CVSS 3.1MEDIUM 5.5· Local · No auth · User interaction · EPSS 0.01425 · Published 2021-05-18 · No fix listed CWE-787
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