{"id":"CVE-2026-92154","summary":"F´: File size bounds bypass in Svc::FileUplink via unsigned integer overflow in DATA packet validation","details":"F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.2.0, Svc::FileUplink handleDataPacket offset and size validation is vulnerable because the component checks byteOffset plus dataSize with wrapping U32 arithmetic and then seeks to the large attacker-controlled offset before writing. When a file-uplink DATA packet supplies a byteOffset and dataSize whose unsigned sum wraps below the declared file size, data can be written beyond the declared upload size, causing file integrity loss and potentially large sparse-file growth or resource exhaustion. This issue is fixed in version 4.2.0.","aliases":["GHSA-wx8q-q5gx-f54p"],"modified":"2026-10-15T02:49:35.086855091Z","published":"2026-10-14T17:17:20.331Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-190"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92154.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92154.json"},{"type":"FIX","url":"https://github.com/nasa/fprime/commit/cacdd555456bd83ab395b521d56c0330470ea798"},{"type":"FIX","url":"https://github.com/nasa/fprime/pull/4919"},{"type":"ADVISORY","url":"https://github.com/nasa/fprime/security/advisories/GHSA-wx8q-q5gx-f54p"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92154"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nasa/fprime","events":[{"introduced":"0"},{"fixed":"f972bed2c56b1c497e70c6e7b1da7593e28f463b"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"4.2.0"}],"source":"AFFECTED_FIELD"}}],"versions":["v4.2.0a1","v4.1.1","v4.1.0","v4.0.1a1","v4.0.0a3","v4.0.0","v4.0.0a2","v4.0.0a1","v3.6.0","v3.5.1","v3.5.0","v3.4.3","v3.4.2","v3.4.1","v3.4.0","v3.3.2","v3.3.1","v3.3.0","v3.2.0","v3.1.1","v3.1.0","v3.0.0","NASA-v1.5.3","NASA-v1.5.2","NASA-v1.5.1","NASA-v1.5.0","NASA-v1.3.1","NASA-v1.00"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92154.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"}]}