{"id":"CVE-2026-92156","state":"PUBLISHED","title":"F´: EventManager asserts on legal oversized LogBuffer values delivered over the standard GenericHub event bridge","description":"F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.3.0, Svc::EventManager loqQueue_internalInterfaceHandler packetization is vulnerable because EventManager accepts up to the framework LogBuffer maximum, but packet descriptor, event identifier, and time-tag metadata consume part of the larger ComBuffer and leave a smaller remaining budget for log arguments; serialization failure then reaches an assertion. When a deployment bridges events through GenericHub into EventManager and forwards a legal Fw::LogBuffer larger than EventManager remaining log-argument budget, under standard F Prime assertion handling, a legal bridged event payload aborts or resets the process, causing denial of service. This issue is fixed in version 4.3.0.","publishedAt":"2026-10-14T17:10:13.076Z","updatedAt":"2026-10-14T17:52:06.724Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["nasa fprime"],"affected":[{"vendor":"nasa","product":"fprime","versions":[{"version":"< 4.3.0","status":"affected"}]}],"references":["https://github.com/nasa/fprime/security/advisories/GHSA-6fxx-mgfv-55g7","https://github.com/nasa/fprime/pull/5633","https://github.com/nasa/fprime/commit/7eacd551aaf6d9a21e347ac2c8d827ca15ee5755","https://github.com/nasa/fprime/releases/tag/v4.3.0"],"weaknesses":["CWE-131","CWE-617"],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/92xxx/CVE-2026-92156.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-92156","state":"PUBLISHED","datePublished":"2026-10-14T17:10:13.076Z","dateUpdated":"2026-10-14T17:52:06.724Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-09-15T17:13:57.865Z"},"containers":{"cna":{"title":"F´: EventManager asserts on legal oversized LogBuffer values delivered over the standard GenericHub event bridge","descriptions":[{"lang":"en","value":"F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.3.0, Svc::EventManager loqQueue_internalInterfaceHandler packetization is vulnerable because EventManager accepts up to the framework LogBuffer maximum, but packet descriptor, event identifier, and time-tag metadata consume part of the larger ComBuffer and leave a smaller remaining budget for log arguments; serialization failure then reaches an assertion. When a deployment bridges events through GenericHub into EventManager and forwards a legal Fw::LogBuffer larger than EventManager remaining log-argument budget, under standard F Prime assertion handling, a legal bridged event payload aborts or resets the process, causing denial of service. This issue is fixed in version 4.3.0."}],"affected":[{"vendor":"nasa","product":"fprime","versions":[{"version":"< 4.3.0","status":"affected"}]}],"references":[{"url":"https://github.com/nasa/fprime/security/advisories/GHSA-6fxx-mgfv-55g7","name":"https://github.com/nasa/fprime/security/advisories/GHSA-6fxx-mgfv-55g7","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/nasa/fprime/pull/5633","name":"https://github.com/nasa/fprime/pull/5633","tags":["x_refsource_MISC"]},{"url":"https://github.com/nasa/fprime/commit/7eacd551aaf6d9a21e347ac2c8d827ca15ee5755","name":"https://github.com/nasa/fprime/commit/7eacd551aaf6d9a21e347ac2c8d827ca15ee5755","tags":["x_refsource_MISC"]},{"url":"https://github.com/nasa/fprime/releases/tag/v4.3.0","name":"https://github.com/nasa/fprime/releases/tag/v4.3.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-131","lang":"en","description":"CWE-131: Incorrect Calculation of Buffer Size","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-617","lang":"en","description":"CWE-617: Reachable Assertion","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-14T17:10:13.076Z"},"source":{"advisory":"GHSA-6fxx-mgfv-55g7","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/nasa/fprime/security/advisories/GHSA-6fxx-mgfv-55g7","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-14T17:50:45.621287Z","id":"CVE-2026-92156","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-14T17:52:06.724Z"}}]}}}