CVE-2019-18624

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2019-10-29 · updated 2026-06-17

Description

Opera Mini for Android allows attackers to bypass intended restrictions on .apk file download/installation via an RTLO (aka Right to Left Override) approach, as demonstrated by misinterpretation of malicious%E2%80%AEtxt.apk as maliciouskpa.txt. This affects 44.1.2254.142553, 44.1.2254.142659, and 44.1.2254.143214.

Affected products

Opera Mini: 44.1.2254.142553, 44.1.2254.142659, 44.1.2254.143214

References

http://firstsight.me/2019/10/illegal-rendered-at-download-feature-in-several-apps-including-opera-mini-that-lead-to-extension-manipulation-with-rtlo/
https://medium.com/%40YoKoKho/illegal-rendered-at-download-feature-in-opera-mini-that-lead-to-extension-manipulation-with-rtlo-685bf2d77d51
http://firstsight.me/2019/10/illegal-rendered-at-download-feature-in-several-apps-including-opera-mini-that-lead-to-extension-manipulation-with-rtlo/
https://medium.com/%40YoKoKho/illegal-rendered-at-download-feature-in-opera-mini-that-lead-to-extension-manipulation-with-rtlo-685bf2d77d51

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