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        "cveId": "CVE-2026-82454",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-08-29T13:22:59.269Z",
        "datePublished": "2026-08-29T13:47:56.108Z",
        "dateUpdated": "2026-09-24T14:20:29.912Z"
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            "datePublic": "2026-08-25T00:00:00.000Z",
            "title": "Omnivore before android-0.227.0 Authentication Bypass via Apple Sign-in",
            "descriptions": [
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                    "lang": "en",
                    "value": "The Omnivore API (packages/api) before the fix in commit abf53d6 contains an authentication bypass in Apple sign-in token verification. The decodeAppleToken function extracted the 'alg' field from the attacker-supplied JWT header and passed it as the sole allowed algorithm to jwt.verify(). Using jsonwebtoken v8 (which does not validate key/algorithm compatibility), an attacker can set alg=HS256 and sign a forged token using Apple's publicly available RSA public key as the HMAC secret, bypassing signature verification and impersonating any Apple-linked account."
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                            "lang": "en",
                            "description": "Improper Verification of Cryptographic Signature",
                            "cweId": "CWE-347",
                            "type": "CWE"
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            "affected": [
                {
                    "vendor": "omnivore-app",
                    "product": "omnivore",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:github/omnivore-app/omnivore",
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                            "version": "0",
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                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
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            "references": [
                {
                    "url": "https://github.com/omnivore-app/omnivore/pull/4652",
                    "tags": [
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                    "name": "Pull Request #4652"
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                                "timestamp": "2026-08-31T16:34:03.423024Z",
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                                        "Exploitation": "none"
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