High
Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-17448
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:33 UTC · Revision 1
Source evidence
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.
osv:CVE-2020-17448
Complete source record
{
"id": "e98a964fd90efda052d0af0ce60b9b5cfa28d6a3692fa46cd46f8500ae2f4fc3",
"url": "https://osv.dev/vulnerability/CVE-2020-17448",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-17448",
"summary": "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.",
"evidence": "osv:CVE-2020-17448",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2020-17448",
"aliases": [
"CVE-2020-17448"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/telegramdesktop/tdesktop",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "bede709f6b9c1b21827280cde3b6d94968997884"
},
{
"fixed": "e5434ea4915a93eb90b4c75ae79cb571001f7e3b"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:telegram:telegram_desktop:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "2.1.13"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "e5434ea4915a93eb90b4c75ae79cb571001f7e3b"
}
],
"source": "REFERENCES_TAG",
"original_tag": "v2.2.0"
}
]
}
}
],
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"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-17448.json",
"vanir_signatures": [
{
"id": "CVE-2020-17448-f7e81173",
"digest": {
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"source": "https://github.com/telegramdesktop/tdesktop/commit/e5434ea4915a93eb90b4c75ae79cb571001f7e3b",
"target": {
"file": "Telegram/SourceFiles/core/version.h"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T13:51:59Z"
}
}
],
"modified": "2026-10-20T13:51:59.048222398Z",
"provider": "osv",
"references": [
"https://github.com/VijayT007/Vulnerability-Database/blob/master/Telegram-CVE-2020-17448",
"https://github.com/telegramdesktop/tdesktop/releases/tag/v2.2.0",
"https://security.gentoo.org/glsa/202101-34",
"https://telegram.org"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2020-17448",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 388295,
"published_at": "2020-08-11T17:15:12.017+00:00"
}