{"id":"CVE-2026-101099","aliases":["EUVD-2026-88369","GHSA-pcr3-24cw-387c"],"status":"published","title":"ag-ui-protocol ag-ui Kotlin Community SDK SseParser.kt exceptional condition","description":"A vulnerability was detected in ag-ui-protocol ag-ui up to 2026-09-23. This affects an unknown part of the file SseParser.kt of the component Kotlin Community SDK. Performing a manipulation results in handling of exceptional conditions. The attack may be initiated remotely. The pull request to fix this issue awaits acceptance.","severity":{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.0039,"percentile":0.33425,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-755"],"published":"2026-09-28T17:15:15Z","modified":"2026-10-28T02:31:04Z","products":[{"vendor":"ag-ui-protocol","product":"ag-ui"}],"references":[{"url":"https://vuldb.com/vuln/410974","tags":["vdb-entry","advisory"]},{"url":"https://vuldb.com/vuln/410974/cti","tags":["signature","permissions-required","report"]},{"url":"https://vuldb.com/cve/CVE-2026-101099","tags":["third-party-advisory","advisory"]},{"url":"https://vuldb.com/submit/934974","tags":["third-party-advisory","advisory"]},{"url":"https://github.com/ag-ui-protocol/ag-ui/issues/2442","tags":["issue-tracking","report"]},{"url":"https://github.com/ag-ui-protocol/ag-ui/pull/2657","tags":["issue-tracking","patch","fix"]},{"url":"https://github.com/ag-ui-protocol/ag-ui/","tags":["product","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101099","tags":["advisory"]},{"url":"https://github.com/ag-ui-protocol/ag-ui"},{"url":"https://github.com/advisories/GHSA-pcr3-24cw-387c"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101099.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-101099","title":"ag-ui-protocol ag-ui Kotlin Community SDK SseParser.kt exceptional condition","description":"A vulnerability was detected in ag-ui-protocol ag-ui up to 2026-09-23. This affects an unknown part of the file SseParser.kt of the component Kotlin Community SDK. Performing a manipulation results in handling of exceptional conditions. The attack may be initiated remotely. The pull request to fix this issue awaits acceptance.","status":"published","published":"2026-09-28T17:15:15.683Z","modified":"2026-10-01T14:37:54.433Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X","level":"medium","assessor":"cna"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:X/RC:C","level":"medium","assessor":"cna"},{"version":"3.0","score":4.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:X/RC:C","level":"medium","assessor":"cna"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:N/A:P/E:ND/RL:ND/RC:C","assessor":"cna"}],"cwes":["CWE-755"],"updated_at":"2026-11-02T14:20:09.448255Z"}],"euvd":[{"id":"EUVD-2026-88369","description":"A vulnerability was detected in ag-ui-protocol ag-ui up to 2026-09-23. This affects an unknown part of the file SseParser.kt of the component Kotlin Community SDK. Performing a manipulation results in handling of exceptional conditions. The attack may be initiated remotely. The pull request to fix this issue awaits acceptance.","status":"published","published":"2026-09-28T17:15:15Z","modified":"2026-10-01T14:37:54Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X","level":"medium"}],"updated_at":"2026-11-02T17:27:46.15359Z"}],"ghsa":[{"id":"GHSA-pcr3-24cw-387c","title":"A vulnerability was detected in ag-ui-protocol ag-ui up to 2026-09-23. This affects an unknown...","description":"A vulnerability was detected in ag-ui-protocol ag-ui up to 2026-09-23. This affects an unknown part of the file SseParser.kt of the component Kotlin Community SDK. Performing a manipulation results in handling of exceptional conditions. The attack may be initiated remotely. The pull request to fix this issue awaits acceptance.","status":"published","published":"2026-09-28T18:31:25Z","modified":"2026-09-28T18:31:26Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/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","level":"medium"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-755"],"updated_at":"2026-11-02T15:12:32.639211Z"}],"nvd":[{"id":"CVE-2026-101099","description":"A vulnerability was detected in ag-ui-protocol ag-ui up to 2026-09-23. This affects an unknown part of the file SseParser.kt of the component Kotlin Community SDK. Performing a manipulation results in handling of exceptional conditions. The attack may be initiated remotely. The pull request to fix this issue awaits acceptance.","status":"published","published":"2026-09-28T18:17:16.777Z","modified":"2026-10-01T15:17:22.85Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/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","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:N/A:P","level":"medium","assessor":"secondary"}],"cwes":["CWE-755"],"updated_at":"2026-11-02T14:12:52.081323Z"}],"osv":[{"id":"CVE-2026-101099","title":"ag-ui-protocol ag-ui Kotlin Community SDK SseParser.kt exceptional condition","description":"A vulnerability was detected in ag-ui-protocol ag-ui up to 2026-09-23. This affects an unknown part of the file SseParser.kt of the component Kotlin Community SDK. Performing a manipulation results in handling of exceptional conditions. The attack may be initiated remotely. The pull request to fix this issue awaits acceptance.","status":"published","published":"2026-09-28T17:15:15.683Z","modified":"2026-10-28T02:31:04.488521604Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X","level":"medium"}],"cwes":["CWE-755"],"updated_at":"2026-11-02T15:44:53.83521Z"}]}}