{ "capsule": { "schema": "apk-scanner.proof/v2", "issuer": "apk-scanner.com", "issued_at": "2026-10-13T16:32:19.839Z", "app": { "app_id": "org.thunderdog.challegram", "title": "Telegram X", "version": "0.28.3.1785-arm64-v8a" }, "analysis": { "status": "unknown" }, "provenance": {}, "apk_sha256": "5e70acfb0fbcd7cbf8da889bde9ec7cc6a6328f71497f90497a5ed310631d15d", "scan": { "scan_id": "9e0926dc-da34-4d4e-a7bc-5a6a3bdc5d5d", "scanned_at": "2026-09-05T14:42:30.864Z", "grade": "A", "score": 91 }, "apk_signer": { "scheme": "v2", "subject_o": null, "subject_cn": "Viacheslav Krylov", "sha256": "eb801a303294ba02a84d030ebb1216c438ac985ad4b89208e32d7a7190dcdd33", "not_after": "2040-05-13T11:02:08+00:00" }, "counts": { "critical": 0, "high": 0, "medium": 1, "low": 7 }, "findings": [ { "finding_type": 2, "severity": "low", "title": "Firebase Realtime Database reference", "redacted_display": "https://████████████████████.firebaseio.com/███", "fingerprint": "8e341744009d6c5fd1ea7457b78b668ca9be37bed85dfd9804c74fe2829c77dc", "verified": false, "cwe": [ "CWE-200", "CWE-284" ], "masvs": [ "MASVS-STORAGE-2" ], "remediation": "Confirm the bucket/database denies anonymous read (enable auth / storage rules / RLS), then audit its contents for data already exposed while it was open." }, { "finding_type": 2, "severity": "low", "title": "Firebase Realtime Database reference", "redacted_display": "https://█████████████.firebaseio.com/███", "fingerprint": "07cdc5d688c38c11a3c46f0d7fe1a1ab2aaf8e7144ed94b4a8cf6a41a216ccab", "verified": false, "cwe": [ "CWE-200", "CWE-284" ], "masvs": [ "MASVS-STORAGE-2" ], "remediation": "Confirm the bucket/database denies anonymous read (enable auth / storage rules / RLS), then audit its contents for data already exposed while it was open." }, { "finding_type": 20, "severity": "low", "title": "Google API key (client-shipped; restriction unverified)", "redacted_display": "AIza•••••••• (21–40 chars, redacted)", "fingerprint": "7f6ba2430a86c6093a83fb651b4f2a928ad484295fc4227c813bdf80e1025388", "verified": false, "cwe": [ "CWE-798" ], "masvs": [ "MASVS-STORAGE-1" ], "remediation": "Restrict the API key (application + API restrictions in Google Cloud Console); a client-shipped key is public, so restriction is the control." }, { "finding_type": 20, "severity": "low", "title": "Google API key (client-shipped; restriction unverified)", "redacted_display": "AIza•••••••• (21–40 chars, redacted)", "fingerprint": "a43efa5fc70abbe3cc05838b91f09c13f532c8a0959b76ec0926790e6a0245a8", "verified": false, "cwe": [ "CWE-798" ], "masvs": [ "MASVS-STORAGE-1" ], "remediation": "Restrict the API key (application + API restrictions in Google Cloud Console); a client-shipped key is public, so restriction is the control." }, { "finding_type": 20, "severity": "low", "title": "Google API key (client-shipped; restriction unverified)", "redacted_display": "AIza•••••••• (21–40 chars, redacted)", "fingerprint": "1ae1f5e8e9cd787af6affdf03d5c6bab0c3c1bf1e2298c81a36d0d30aeb26514", "verified": false, "cwe": [ "CWE-798" ], "masvs": [ "MASVS-STORAGE-1" ], "remediation": "Restrict the API key (application + API restrictions in Google Cloud Console); a client-shipped key is public, so restriction is the control." }, { "finding_type": 20, "severity": "low", "title": "Google API key (client-shipped; restriction unverified)", "redacted_display": "AIza•••••••• (21–40 chars, redacted)", "fingerprint": "3f736674a31083999344312e2baefafd0000592ba042d8d82a729200398009a4", "verified": false, "cwe": [ "CWE-798" ], "masvs": [ "MASVS-STORAGE-1" ], "remediation": "Restrict the API key (application + API restrictions in Google Cloud Console); a client-shipped key is public, so restriction is the control." }, { "finding_type": 53, "severity": "low", "title": "Firebase Storage bucket reference", "redacted_display": "████████████", "fingerprint": "99b6f6240b58a23e27f092bb5ee361b0de056d6e547fed67be6df8e892df6630", "verified": false, "cwe": [ "CWE-200", "CWE-284" ], "masvs": [ "MASVS-STORAGE-2" ], "remediation": "Confirm the bucket/database denies anonymous read (enable auth / storage rules / RLS), then audit its contents for data already exposed while it was open." }, { "finding_type": 57, "severity": "medium", "title": "Short signing key (RSA 1024-bit)", "redacted_display": "RSA-1024", "fingerprint": "c0908fb30fa18324ad43f60111957be428de82cb1baf73a54edd1ca8d185e47e", "verified": false, "cwe": [ "CWE-326" ], "masvs": [ "MASVS-CRYPTO-1" ], "remediation": "Use an RSA key of at least 2048 bits or an EC P-256 key for signing." } ], "live_verification": { "verified_count": 0, "items": [] }, "trackers_count": 1, "pii": { "sources": 13, "identifiers": [ "Android ID", "Device ID / IMEI", "Subscriber ID (IMSI)" ], "destinations": 1 }, "sbom": { "component_count": 58, "vuln_count": 0, "components": [ { "name": "androidx.activity:activity", "version": "1.12.2", "cves": [] }, { "name": "androidx.annotation:annotation-experimental", "version": "1.4.1", "cves": [] }, { "name": "androidx.appcompat:appcompat", "version": "1.6.1", "cves": [] }, { "name": "androidx.appcompat:appcompat-resources", "version": "1.6.1", "cves": [] }, { "name": "androidx.biometric:biometric", "version": "1.1.0", "cves": [] }, { "name": "androidx.browser:browser", "version": "1.9.0", "cves": [] }, { "name": "androidx.camera.featurecombinationquery:featurecombinationquery", "version": "1.5.2", "cves": [] }, { "name": "androidx.camera:camera-camera2", "version": "1.5.2", "cves": [] }, { "name": "androidx.camera:camera-core", "version": "1.5.2", "cves": [] }, { "name": "androidx.camera:camera-lifecycle", "version": "1.5.2", "cves": [] }, { "name": "androidx.camera:camera-video", "version": "1.5.2", "cves": [] }, { "name": "androidx.camera:camera-view", "version": "1.5.2", "cves": [] }, { "name": "androidx.compose.runtime:runtime-annotation", "version": "1.9.0", "cves": [] }, { "name": "androidx.constraintlayout:constraintlayout", "version": "2.2.1", "cves": [] }, { "name": "androidx.core:core", "version": "1.17.0", "cves": [] }, { "name": "androidx.core:core-ktx", "version": "1.17.0", "cves": [] }, { "name": "androidx.core:core-viewtree", "version": "1.0.0", "cves": [] }, { "name": "androidx.cursoradapter:cursoradapter", "version": "1.0.0", "cves": [] }, { "name": "androidx.customview:customview", "version": "1.0.0", "cves": [] }, { "name": "androidx.customview:customview-poolingcontainer", "version": "1.0.0", "cves": [] }, { "name": "androidx.datastore:datastore", "version": "1.1.7", "cves": [] }, { "name": "androidx.datastore:datastore-core", "version": "1.1.7", "cves": [] }, { "name": "androidx.datastore:datastore-preferences", "version": "1.1.7", "cves": [] }, { "name": "androidx.datastore:datastore-preferences-core", "version": "1.1.7", "cves": [] }, { "name": "androidx.documentfile:documentfile", "version": "1.0.0", "cves": [] }, { "name": "androidx.drawerlayout:drawerlayout", "version": "1.0.0", "cves": [] }, { "name": "androidx.emoji2:emoji2", "version": "1.2.0", "cves": [] }, { "name": "androidx.emoji2:emoji2-views-helper", "version": "1.2.0", "cves": [] }, { "name": "androidx.exifinterface:exifinterface", "version": "1.4.2", "cves": [] }, { "name": "androidx.fragment:fragment", "version": "1.3.6", "cves": [] }, { "name": "androidx.gridlayout:gridlayout", "version": "1.1.0", "cves": [] }, { "name": "androidx.interpolator:interpolator", "version": "1.0.0", "cves": [] }, { "name": "androidx.legacy:legacy-support-core-utils", "version": "1.0.0", "cves": [] }, { "name": "androidx.loader:loader", "version": "1.0.0", "cves": [] }, { "name": "androidx.localbroadcastmanager:localbroadcastmanager", "version": "1.0.0", "cves": [] }, { "name": "androidx.navigationevent:navigationevent", "version": "1.0.1", "cves": [] }, { "name": "androidx.palette:palette", "version": "1.0.0", "cves": [] }, { "name": "androidx.print:print", "version": "1.0.0", "cves": [] }, { "name": "androidx.profileinstaller:profileinstaller", "version": "1.4.0", "cves": [] }, { "name": "androidx.recyclerview:recyclerview", "version": "1.4.0", "cves": [] }, { "name": "androidx.room:room-runtime", "version": "2.7.0", "cves": [] }, { "name": "androidx.savedstate:savedstate", "version": "1.2.1", "cves": [] }, { "name": "androidx.security:security-crypto", "version": "1.1.0-alpha03", "cves": [] }, { "name": "androidx.sqlite:sqlite", "version": "2.5.0", "cves": [] }, { "name": "androidx.sqlite:sqlite-framework", "version": "2.5.0", "cves": [] }, { "name": "androidx.startup:startup-runtime", "version": "1.2.0", "cves": [] }, { "name": "androidx.tracing:tracing", "version": "1.2.0", "cves": [] }, { "name": "androidx.tracing:tracing-ktx", "version": "1.2.0", "cves": [] }, { "name": "androidx.vectordrawable:vectordrawable", "version": "1.1.0", "cves": [] }, { "name": "androidx.vectordrawable:vectordrawable-animated", "version": "1.1.0", "cves": [] }, { "name": "androidx.versionedparcelable:versionedparcelable", "version": "1.1.1", "cves": [] }, { "name": "androidx.viewpager:viewpager", "version": "1.1.0", "cves": [] }, { "name": "androidx.work:work-runtime", "version": "2.11.0", "cves": [] }, { "name": "com.squareup.okhttp3:okhttp", "version": "5.3.2", "cves": [] }, { "name": "kotlinx:coroutines_android", "version": "1.10.2", "cves": [] }, { "name": "kotlinx:coroutines_core", "version": "1.10.2", "cves": [] }, { "name": "kotlinx:coroutines_guava", "version": "1.10.2", "cves": [] }, { "name": "kotlinx:coroutines_play_services", "version": "1.10.2", "cves": [] } ] }, "control_coverage": { "schema": "apk-scanner.coverage/v1", "framework": "OWASP MASVS v2", "disclaimer": "Static, metadata-only analysis. Each control is scored evidence-for / gap-signal / requires-manual-testing. This is evidence toward a MASVS assessment, NOT a certification — apk-scanner.com is not an authorized assessment lab. Absence of a static finding does not prove a control passes.", "rows": [ { "control": "MASVS-STORAGE-1", "category": "STORAGE", "title": "The app securely stores sensitive data.", "static": "partial", "status": "gap-detected", "count": 4, "findings": [ { "finding_type": 20, "key": "google_api_key", "title": "Google API key (client-shipped; restriction unverified)", "severity": "low", "verified": false, "relationship": "gap-signal", "cwe": [ 798 ] }, { "finding_type": 20, "key": "google_api_key", "title": "Google API key (client-shipped; restriction unverified)", "severity": "low", "verified": false, "relationship": "gap-signal", "cwe": [ 798 ] }, { "finding_type": 20, "key": "google_api_key", "title": "Google API key (client-shipped; restriction unverified)", "severity": "low", "verified": false, "relationship": "gap-signal", "cwe": [ 798 ] }, { "finding_type": 20, "key": "google_api_key", "title": "Google API key (client-shipped; restriction unverified)", "severity": "low", "verified": false, "relationship": "gap-signal", "cwe": [ 798 ] } ] }, { "control": "MASVS-STORAGE-2", "category": "STORAGE", "title": "The app prevents leakage of sensitive data.", "static": "partial", "status": "gap-detected", "count": 3, "findings": [ { "finding_type": 2, "key": "firebase_rtdb", "title": "Firebase Realtime Database reference", "severity": "low", "verified": false, "relationship": "gap-signal", "cwe": [ 200, 284 ] }, { "finding_type": 2, "key": "firebase_rtdb", "title": "Firebase Realtime Database reference", "severity": "low", "verified": false, "relationship": "gap-signal", "cwe": [ 200, 284 ] }, { "finding_type": 53, "key": "firebase_storage", "title": "Firebase Storage bucket reference", "severity": "low", "verified": false, "relationship": "gap-signal", "cwe": [ 200, 284 ] } ] }, { "control": "MASVS-CRYPTO-1", "category": "CRYPTO", "title": "The app employs current strong cryptography and uses it according to best practices.", "static": "partial", "status": "gap-detected", "count": 1, "findings": [ { "finding_type": 57, "key": "short_key", "title": "Short signing key (RSA 1024-bit)", "severity": "medium", "verified": false, "relationship": "gap-confirmed", "cwe": [ 326 ] } ] }, { "control": "MASVS-CRYPTO-2", "category": "CRYPTO", "title": "The app performs key management according to best practices.", "static": "partial", "status": "no-static-findings", "count": 0, "findings": [] }, { "control": "MASVS-AUTH-1", "category": "AUTH", "title": "The app uses secure authentication and authorization protocols.", "static": "manual", "status": "requires-manual-testing", "count": 0, "findings": [] }, { "control": "MASVS-AUTH-2", "category": "AUTH", "title": "The app performs local authentication securely.", "static": "manual", "status": "requires-manual-testing", "count": 0, "findings": [] }, { "control": "MASVS-AUTH-3", "category": "AUTH", "title": "The app secures sensitive operations with additional authentication.", "static": "manual", "status": "requires-manual-testing", "count": 0, "findings": [] }, { "control": "MASVS-NETWORK-1", "category": "NETWORK", "title": "The app secures all network traffic according to current best practices.", "static": "yes", "status": "no-static-findings", "count": 0, "findings": [] }, { "control": "MASVS-NETWORK-2", "category": "NETWORK", "title": "The app verifies the identity of the remote endpoint (e.g. certificate pinning).", "static": "partial", "status": "no-static-findings", "count": 0, "findings": [] }, { "control": "MASVS-PLATFORM-1", "category": "PLATFORM", "title": "The app uses IPC mechanisms securely.", "static": "yes", "status": "no-static-findings", "count": 0, "findings": [] }, { "control": "MASVS-PLATFORM-2", "category": "PLATFORM", "title": "The app uses WebViews securely.", "static": "partial", "status": "no-static-findings", "count": 0, "findings": [] }, { "control": "MASVS-PLATFORM-3", "category": "PLATFORM", "title": "The app uses the user interface securely.", "static": "manual", "status": "requires-manual-testing", "count": 0, "findings": [] }, { "control": "MASVS-CODE-1", "category": "CODE", "title": "The app requires an up-to-date platform version.", "static": "yes", "status": "no-static-findings", "count": 0, "findings": [] }, { "control": "MASVS-CODE-2", "category": "CODE", "title": "The app has a mechanism for enforcing updates.", "static": "manual", "status": "requires-manual-testing", "count": 0, "findings": [] }, { "control": "MASVS-CODE-3", "category": "CODE", "title": "The app only uses software components without known vulnerabilities.", "static": "yes", "status": "no-static-findings", "count": 0, "findings": [] }, { "control": "MASVS-CODE-4", "category": "CODE", "title": "The app validates and sanitizes all untrusted inputs and follows secure-coding practice.", "static": "partial", "status": "no-static-findings", "count": 0, "findings": [] }, { "control": "MASVS-RESILIENCE-1", "category": "RESILIENCE", "title": "The app validates the integrity of the platform.", "static": "manual", "status": "requires-manual-testing", "count": 0, "findings": [] }, { "control": "MASVS-RESILIENCE-2", "category": "RESILIENCE", "title": "The app implements anti-tampering mechanisms.", "static": "manual", "status": "requires-manual-testing", "count": 0, "findings": [] }, { "control": "MASVS-RESILIENCE-3", "category": "RESILIENCE", "title": "The app implements anti-static-analysis mechanisms.", "static": "manual", "status": "requires-manual-testing", "count": 0, "findings": [] }, { "control": "MASVS-RESILIENCE-4", "category": "RESILIENCE", "title": "The app implements anti-dynamic-analysis techniques.", "static": "manual", "status": "requires-manual-testing", "count": 0, "findings": [] }, { "control": "MASVS-PRIVACY-1", "category": "PRIVACY", "title": "The app minimizes access to sensitive data and resources.", "static": "yes", "status": "no-static-findings", "count": 0, "findings": [] }, { "control": "MASVS-PRIVACY-2", "category": "PRIVACY", "title": "The app prevents identification of the user.", "static": "yes", "status": "no-static-findings", "count": 0, "findings": [] }, { "control": "MASVS-PRIVACY-3", "category": "PRIVACY", "title": "The app is transparent about data collection and usage.", "static": "yes", "status": "no-static-findings", "count": 0, "findings": [] }, { "control": "MASVS-PRIVACY-4", "category": "PRIVACY", "title": "The app offers user control over their data.", "static": "manual", "status": "requires-manual-testing", "count": 0, "findings": [] } ], "categories": [ { "category": "STORAGE", "controls": 2, "gaps": 2, "verified": 0, "manual": 0 }, { "category": "CRYPTO", "controls": 2, "gaps": 1, "verified": 0, "manual": 0 }, { "category": "AUTH", "controls": 3, "gaps": 0, "verified": 0, "manual": 3 }, { "category": "NETWORK", "controls": 2, "gaps": 0, "verified": 0, "manual": 0 }, { "category": "PLATFORM", "controls": 3, "gaps": 0, "verified": 0, "manual": 1 }, { "category": "CODE", "controls": 4, "gaps": 0, "verified": 0, "manual": 1 }, { "category": "RESILIENCE", "controls": 4, "gaps": 0, "verified": 0, "manual": 4 }, { "category": "PRIVACY", "controls": 4, "gaps": 0, "verified": 0, "manual": 1 } ] } }, "proof": { "alg": "ed25519", "key_id": "IE6LeZNX4dAAPLGr", "digest_sha256": "3832397a9f69fd8867246134e4978b7ed781995c6be34fde1ff9b03dad2f841c", "signature": "p5Z17gDfVkSCZqpovi2xE9aarQaMLE8OMZ8TMXsKCAMTfpCS47+2cjHePxwB+3k0auB6zEDa6FQpAPkP4LowAg==", "public_key_pem": "-----BEGIN PUBLIC KEY-----\nMCowBQYDK2VwAyEAwH2fYdYB5nD0CQslDtG3FgafcJBoOX2OGoT80Woksrk=\n-----END PUBLIC KEY-----\n", "verify_url": "https://apk-scanner.com/verify" } }