UBUNTU-CVE-2026-7701
A security vulnerability has been detected in Telegram Desktop up to 6.7.5. This vulnerability affects the function RequestButton of the file Telegram/SourceFiles/boxes/url_auth_box.cpp of the component Bot API. The manipulation of the argument login_url leads to null pointer dereference. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. There is ongoing doubt regarding the real existence of this vulnerability. Upgrading to version 6.7.6 is able to resolve this issue. Upgrading the affected component is recommended. The vendor provides this rationale for the dispute: "[T]he described scenario does not lead to any security issue or vulnerability, and only causes a one-time crash. In the outlined scenario, the targeted user must perform an active action, which doesn't produce any consequences after the app is relaunched."
UBUNTU-CVE-2026-7701
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:UBUNTU-CVE-2026-7701
telegram-desktop
Source reference: /affected/0/package/name
- Affected versions
- 1.1.23-1
Source reference:
/affected/0/versions1.1.23-1build1Source reference:
/affected/0/versions1.1.23-2Source reference:
/affected/0/versions1.1.23-3Source reference:
/affected/0/versions1.2.6-1Source reference:
/affected/0/versions1.2.6-2Source reference:
/affected/0/versions1.2.6-2build1Source reference:
/affected/0/versions1.2.6-2build2Source reference:
/affected/0/versions1.2.6-2build3Source reference:
/affected/0/versions1.2.15-1Source reference:
/affected/0/versions1.2.15-1build1Source reference:
/affected/0/versions1.2.17-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
telegram-desktop
Source reference: /affected/1/package/name
- Affected versions
- 1.8.8-1
Source reference:
/affected/1/versions1.8.15-2Source reference:
/affected/1/versions1.9.8~slim-1Source reference:
/affected/1/versions1.9.14+ds-1Source reference:
/affected/1/versions1.9.14+ds-2Source reference:
/affected/1/versions1.9.21+ds-1Source reference:
/affected/1/versions2.0.1+ds-1Source reference:
/affected/1/versions2.0.1+ds-1build1Source reference:
/affected/1/versions2.1.7+ds-2~ubuntu20.04.1Source reference:
/affected/1/versions3.1.1+ds-1~ubuntu20.04.1Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
telegram-desktop
Source reference: /affected/2/package/name
- Affected versions
- 3.1.1+ds-1
Source reference:
/affected/2/versions3.5.2+ds-1Source reference:
/affected/2/versions3.6.1+ds-2build1Source reference:
/affected/2/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "telegram-desktop",
"purl": "pkg:deb/ubuntu/telegram-desktop?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"1.1.23-1",
"1.1.23-1build1",
"1.1.23-2",
"1.1.23-3",
"1.2.6-1",
"1.2.6-2",
"1.2.6-2build1",
"1.2.6-2build2",
"1.2.6-2build3",
"1.2.15-1",
"1.2.15-1build1",
"1.2.17-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7701.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "telegram-desktop",
"binary_version": "1.2.17-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "telegram-desktop",
"purl": "pkg:deb/ubuntu/telegram-desktop?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"1.8.8-1",
"1.8.15-2",
"1.9.8~slim-1",
"1.9.14+ds-1",
"1.9.14+ds-2",
"1.9.21+ds-1",
"2.0.1+ds-1",
"2.0.1+ds-1build1",
"2.1.7+ds-2~ubuntu20.04.1",
"3.1.1+ds-1~ubuntu20.04.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7701.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "telegram-desktop",
"binary_version": "3.1.1+ds-1~ubuntu20.04.1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "telegram-desktop",
"purl": "pkg:deb/ubuntu/telegram-desktop?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"3.1.1+ds-1",
"3.5.2+ds-1",
"3.6.1+ds-2build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7701.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "telegram-desktop",
"binary_version": "3.6.1+ds-2build1"
}
]
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #51963 · Revision 1
- Added to Heist Feed
- Publisher date