CVE-2021-36769

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Source
https://cve.org/CVERecord?id=CVE-2021-36769
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-36769.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-36769
Downstream
Published
2021-07-17T00:15:07.847Z
Modified
2026-05-18T21:47:12.621417Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
[none]
Details

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.

Database specific 
{
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "fixed": "7.8.3"
                }
            ],
            "source": "CPE_FIELD",
            "vendor_product": "telegram:telegram",
            "cpes": [
                "cpe:2.3:a:telegram:telegram:*:*:*:*:*:iphone_os:*:*"
            ]
        }
    ]
}
References

Affected packages

Git / github.com/drklo/telegram

Affected ranges

Type
GIT
Repo
https://github.com/drklo/telegram
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
3ac3c37dd24e82779f7e20f31eb3df8f0bf46081
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "7.8.1"
        }
    ],
    "source": "CPE_FIELD",
    "cpe": "cpe:2.3:a:telegram:telegram:*:*:*:*:*:android:*:*"
}

Affected versions

release-5.*
release-5.13.0_1818
release-5.13.0_1819
release-5.13.0_1820
release-5.13.0_1821
release-5.13.0_1823
release-5.13.1_1826
release-5.13.1_1829
release-5.14.0_1846
release-5.14.0_1849
release-5.14.0_1851
release-5.15.0_1864
release-5.15.0_1866
release-5.15.0_1867
release-5.15.0_1868
release-5.15.0_1869
release-6.*
release-6.0.0_1908
release-6.0.1_1910
release-6.0.1_1911
release-6.1.0_1938
release-6.1.0_1940
release-6.1.0_1941
release-6.1.1_1945
release-6.1.1_1946
release-6.2.0_1984
release-6.2.0_1985
release-6.2.0_1986
release-6.2.0_1988
release-6.3.0_2040
release-6.3.0_2042
release-7.*
release-7.0.0_2060
release-7.0.0_2061
release-7.0.0_2064
release-7.0.1_2065
release-7.1.0_2090
release-7.1.0_2092
release-7.1.1_2094
release-7.1.1_2096
release-7.1.2_2098
release-7.1.3_2100
release-7.1.3_2103
release-7.2.0_2128
release-7.2.0_2134
release-7.2.1_2135
release-7.2.1_2136
release-7.2.1_2137
release-7.2.1_2139
release-7.3.0_2195
release-7.3.0_2196
release-7.3.0_2197
release-7.3.0_2206
release-7.4.0_2221
release-7.4.0_2223
release-7.4.1_2225
release-7.4.2_2227
release-7.5.0_2243
release-7.5.0_2244
release-7.5.0_2245
release-7.5.0_2246
release-7.6.0_2264
release-7.6.1_2274
release-7.7.0_2284
release-7.7.1_2291
release-7.7.2_2293
release-7.8.0_2360

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-36769.json"

Git / github.com/telegramdesktop/tdesktop

Affected ranges

Type
GIT
Repo
https://github.com/telegramdesktop/tdesktop
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
b69cac3ed6d224146b60d1586e0e1fa40aafc3cf
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.8.8"
        }
    ],
    "source": "CPE_FIELD",
    "cpe": "cpe:2.3:a:telegram:telegram_desktop:*:*:*:*:*:*:*:*"
}

Affected versions

v0.*
v0.10.1
v0.10.14
v0.10.15
v0.10.16
v0.10.18
v0.10.19
v0.10.2
v0.10.20
v0.10.4
v0.10.5
v0.10.6
v0.5.0
v0.5.1
v0.5.11
v0.5.12
v0.5.13
v0.5.14
v0.5.15
v0.5.16
v0.5.17
v0.5.18
v0.5.19
v0.5.20
v0.5.21
v0.5.6
v0.5.7
v0.5.8
v0.5.9
v0.6.0
v0.6.1
v0.6.10
v0.6.11
v0.6.13
v0.6.14
v0.6.17
v0.6.18
v0.6.19
v0.6.2
v0.6.20
v0.6.21
v0.6.3
v0.6.4
v0.6.6
v0.6.7
v0.6.8
v0.6.9
v0.7.0
v0.7.1
v0.7.10
v0.7.11
v0.7.12
v0.7.13
v0.7.14
v0.7.15
v0.7.16
v0.7.17
v0.7.18
v0.7.2
v0.7.20
v0.7.21
v0.7.22
v0.7.23
v0.7.24
v0.7.25
v0.7.26
v0.7.3
v0.7.4
v0.7.5
v0.7.6
v0.7.7
v0.7.9
v0.8.0
v0.8.1
v0.8.10
v0.8.11
v0.8.12
v0.8.14
v0.8.15
v0.8.16
v0.8.17
v0.8.18
v0.8.19
v0.8.2
v0.8.21
v0.8.22
v0.8.23
v0.8.24
v0.8.25
v0.8.26
v0.8.27
v0.8.28
v0.8.29
v0.8.3
v0.8.30
v0.8.31
v0.8.32
v0.8.33
v0.8.34
v0.8.35
v0.8.38
v0.8.39
v0.8.40
v0.8.41
v0.8.42
v0.8.43
v0.8.44
v0.8.45
v0.8.48
v0.8.49
v0.8.5
v0.8.50
v0.8.51
v0.8.52
v0.8.53
v0.8.54
v0.8.55
v0.8.58
v0.8.59
v0.8.7
v0.8.8
v0.8.9
v0.9.0
v0.9.1
v0.9.11
v0.9.12
v0.9.13
v0.9.14
v0.9.19
v0.9.2
v0.9.20
v0.9.21
v0.9.22
v0.9.23
v0.9.24
v0.9.27
v0.9.28
v0.9.29
v0.9.3
v0.9.30
v0.9.31
v0.9.34
v0.9.35
v0.9.36
v0.9.43
v0.9.45
v0.9.46
v0.9.49
v0.9.50
v0.9.51
v0.9.56
v0.9.57
v0.9.6
v0.9.7
v0.9.8
v1.*
v1.0.0
v1.0.1
v1.0.10
v1.0.11
v1.0.12
v1.0.13
v1.0.14
v1.0.15
v1.0.16
v1.0.17
v1.0.18
v1.0.19
v1.0.2
v1.0.20
v1.0.21
v1.0.22
v1.0.23
v1.0.24
v1.0.25
v1.0.26
v1.0.27
v1.0.28
v1.0.29
v1.0.3
v1.0.30
v1.0.31
v1.0.32
v1.0.33
v1.0.34
v1.0.35
v1.0.36
v1.0.37
v1.0.38
v1.0.4
v1.0.5
v1.0.6
v1.0.7
v1.0.8
v1.0.9
v1.1.0
v1.1.1
v1.1.10
v1.1.11
v1.1.12
v1.1.13
v1.1.14
v1.1.15
v1.1.16
v1.1.17
v1.1.18
v1.1.19
v1.1.2
v1.1.20
v1.1.21
v1.1.22
v1.1.23
v1.1.24
v1.1.25
v1.1.26
v1.1.27
v1.1.28
v1.1.29
v1.1.3
v1.1.4
v1.1.5
v1.1.6
v1.1.7
v1.1.8
v1.1.9
v1.2.0
v1.2.1
v1.2.10
v1.2.11
v1.2.12
v1.2.13
v1.2.14
v1.2.15
v1.2.16
v1.2.17
v1.2.18
v1.2.19
v1.2.2
v1.2.20
v1.2.21
v1.2.22
v1.2.23
v1.2.24
v1.2.25
v1.2.3
v1.2.4
v1.2.5
v1.2.6
v1.2.7
v1.2.8
v1.2.9
v1.3.0
v1.3.1
v1.3.10
v1.3.11
v1.3.12
v1.3.13
v1.3.14
v1.3.15
v1.3.16
v1.3.17
v1.3.2
v1.3.3
v1.3.4
v1.3.5
v1.3.6
v1.3.7
v1.3.8
v1.3.9
v1.4.0
v1.4.1
v1.4.2
v1.4.3
v1.4.4
v1.4.5
v1.4.6
v1.4.7
v1.4.8
v1.5.0
v1.5.1
v1.5.10
v1.5.11
v1.5.12
v1.5.13
v1.5.15
v1.5.16
v1.5.17
v1.5.18
v1.5.2
v1.5.3
v1.5.4
v1.5.5
v1.5.6
v1.5.7
v1.5.8
v1.5.9
v1.6.0
v1.6.1
v1.6.2
v1.6.3
v1.6.4
v1.6.5
v1.6.6
v1.6.7
v1.7.0
v1.7.1
v1.7.10
v1.7.11
v1.7.12
v1.7.13
v1.7.14
v1.7.15
v1.7.2
v1.7.3
v1.7.4
v1.7.5
v1.7.6
v1.7.7
v1.7.8
v1.7.9
v1.8.0
v1.8.1
v1.8.10
v1.8.11
v1.8.12
v1.8.13
v1.8.14
v1.8.15
v1.8.2
v1.8.3
v1.8.4
v1.8.5
v1.8.7
v1.8.8
v1.8.9
v1.9.0
v1.9.1
v1.9.10
v1.9.11
v1.9.12
v1.9.13
v1.9.14
v1.9.15
v1.9.16
v1.9.17
v1.9.18
v1.9.19
v1.9.2
v1.9.20
v1.9.21
v1.9.22
v1.9.3
v1.9.4
v1.9.5
v1.9.6
v1.9.7
v1.9.8
v1.9.9
v2.*
v2.0.0
v2.0.1
v2.1.0
v2.1.1
v2.1.10
v2.1.11
v2.1.12
v2.1.13
v2.1.14
v2.1.15
v2.1.16
v2.1.17
v2.1.18
v2.1.19
v2.1.2
v2.1.20
v2.1.21
v2.1.22
v2.1.3
v2.1.4
v2.1.5
v2.1.6
v2.1.7
v2.1.8
v2.1.9
v2.2.0
v2.3.0
v2.3.1
v2.3.2
v2.4.0
v2.4.1
v2.4.10
v2.4.11
v2.4.12
v2.4.13
v2.4.14
v2.4.15
v2.4.2
v2.4.3
v2.4.4
v2.4.5
v2.4.6
v2.4.7
v2.4.8
v2.4.9
v2.5.0
v2.5.1
v2.5.2
v2.5.3
v2.5.4
v2.5.5
v2.5.6
v2.5.7
v2.5.8
v2.5.9
v2.6.0
v2.6.1
v2.6.2
v2.6.3
v2.6.4
v2.6.5
v2.6.6
v2.6.7
v2.6.8
v2.7.0
v2.7.1
v2.7.10
v2.7.2
v2.7.3
v2.7.4
v2.7.5
v2.7.7
v2.7.8
v2.7.9
v2.8.0
v2.8.1
v2.8.2
v2.8.3
v2.8.4
v2.8.5
v2.8.6

Database specific

vanir_signatures_modified 
"2026-05-18T21:47:12Z"
vanir_signatures 
[
    {
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "319953548780886678756405202304630774357",
                "228928258810351972415558832941811870001",
                "323424186652986449396460401475159329246",
                "54301167607437185411921430364950200715",
                "105752962412594996104515651931465131240",
                "271159647414825322078303120261358533440"
            ]
        },
        "source": "https://github.com/telegramdesktop/tdesktop/commit/b69cac3ed6d224146b60d1586e0e1fa40aafc3cf",
        "signature_version": "v1",
        "target": {
            "file": "Telegram/SourceFiles/core/version.h"
        },
        "id": "CVE-2021-36769-9b48a2e3"
    }
]
source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-36769.json"