Medium
Security advisory
A reordering issue exists in Telegram before 7.8.1 for Android, Telegram before 7.8.3 for iOS, and Telegram Desktop before 2.8.8. An attacker can cause the server to receive messages in a different order than they were sent a client.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-36769
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 09:25 UTC · Revision 1
Source evidence
A reordering issue exists in Telegram before 7.8.1 for Android, Telegram before 7.8.3 for iOS, and Telegram Desktop before 2.8.8. An attacker can cause the server to receive messages in a different order than they were sent a client.
osv:CVE-2021-36769
Complete source record
{
"id": "49e6f852f5d4b61fc8df6366a617d9aaabb77a8b0c7c3d4edfd0b7ad09baba67",
"url": "https://osv.dev/vulnerability/CVE-2021-36769",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-36769",
"summary": "A reordering issue exists in Telegram before 7.8.1 for Android, Telegram before 7.8.3 for iOS, and Telegram Desktop before 2.8.8. An attacker can cause the server to receive messages in a different order than they were sent a client.",
"evidence": "osv:CVE-2021-36769",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2021-36769",
"aliases": [
"CVE-2021-36769"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
}
],
"affected": [
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