CVE-2026-7701

Telegram Desktop Bot API url_auth_box.cpp RequestButton null pointer dereference

MEDIUM
4.3
CVSS Score
Published: May 3, 2026 at 03:30 PM UTC
Updated: October 26, 2026 at 08:10 PM UTC
2 products affected across 1 vendordesktopTelegram Desktop

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.4%
SSVC
PoC

Description

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. The vendor was contacted early about this disclosure but did not respond in any way.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
Vendor states this is fixed in 6.7.6 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/360870
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/360870/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/804341
Press/Media Coverage
Source: cverecord
https://www.youtube.com/watch?v=xo9Bplsy1K8

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-476CWE-404

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