CVE-2026-7701

MEDIUM 4.3

Telegram Desktop Bot API url_auth_box.cpp RequestButton null pointer dereference

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-476 CWE-404
Vendor	telegram
Product	desktop
Published	May 3, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Telegram / Desktop

6.7.0 6.7.1 6.7.2 6.7.3 6.7.4 6.7.5

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/360870 vuldb.com: https://vuldb.com/vuln/360870/cti vuldb.com: https://vuldb.com/submit/804341 youtube.com: https://www.youtube.com/watch?v=xo9Bplsy1K8

Credits

🔍 oblivionsage (VulDB User) VulDB CNA Team