TI-2018-11087 Aliases CVE-2018-15542 GHSA-qqj6-f5mm-g546

An issue was discovered in the org.telegram.messenger application 4.8.11 for Android.

LOW 28CWE-287Published 2018-10-09 · Updated 2024-08-05

Key facts

Attack vector: Physical
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-287.

Summary

An issue was discovered in the org.telegram.messenger application 4.8.11 for Android. The Passcode feature allows authentication bypass via runtime manipulation that forces a certain method's return value to true. In other words, an attacker could authenticate with an arbitrary passcode. NOTE: the vendor indicates that this is not an attack of interest within the context of their threat model, which excludes Android devices on which rooting has occurred

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00343 27th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:telegram:telegram:4.8.11:::::android::	4.8.11	Vulnerable	Telegram

cpe:2.3:a:telegram:telegram:4.8.11:*:*:*:*:android:*:* Versions 4.8.11 Vulnerable ·Telegram

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2018-15542
2026-10-03 Alias added: GHSA-qqj6-f5mm-g546

References

Advisory 1

https://gist.github.com/tanprathan/18d0f692a2485acfb5693e2f6dabeb5d

TI-2018-11088 An issue was discovered in the org.telegram.messenger application 4.8.11 for Android. CVSS 3.0MEDIUM 6.8
TI-2021-10892 The Telegram app 7.6.2 for iOS allows remote authenticated users to cause a denial of… CVSS 3.1MEDIUM 5.7
TI-2023-11787 Telegram 9.3.1 and 9.4.0 allows attackers to access restricted files, microphone ,or… CVSS 3.1MEDIUM 5.5
TI-2019-07370 Telegram Desktop before 1.5.12 on Windows, and the Telegram applications for Android… CVSS 3.0HIGH 8.8
TI-2018-14480 The "secret chat" feature in Telegram 4.9.1 for Android has a "side channel" in which… CVSS 3.0HIGH 8.1
TI-2024-06509 Improper multimedia file attachment validation in Telegram for Android app CVSS 4.0HIGH 7.1

See all 26 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences