CVE-2025-27839 Information

Description

operations/attestation/AttestationTask.kt in the Tangem SDK before 5.18.3 for Android has a logic flow in offline wallet attestation (genuineness check) that causes verification results to be disregarded during the first scan of a card. Exploitation may not have been possible.

Reference

https://github.com/tangem/tangem-sdk-android/commit/24588188fdb51ed469cd59d2c595128c1fe63b07 https://github.com/tangem/tangem-sdk-android/releases/tag/release-app_5.18-409 https://tangem.com/en/blog/post/app-update/