{"id":"CVE-2026-91349","kind":"vulnerability","aliases":["CVE-2026-91349"],"related":[],"title":"Oracle Outside In Clean Content SDK: unauthenticated network crash denies service","description":"Vulnerability in the Oracle Outside In Technology product of Oracle Fusion Middleware (component: Outside In Clean Content SDK).   The supported version that is affected is 8.5.8. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Outside In Technology.  Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Outside In Technology. CVSS 3.1 Base Score 7.5 (Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).","summary":"The Oracle Outside In Clean Content SDK 8.5.8 can be made to hang or repeatedly crash over HTTP by an unauthenticated remote attacker. The impact is availability only: a successful attack takes the component down repeatedly but does not expose data or allow code execution according to the CVSS vector.","severity":"high","cvss":7.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["fusion-middleware","oracle","outside-in","package","self-hosted"],"not_affected_if":["no-outside-in-sdk"],"how_to_check":"- Check whether the Oracle Outside In Clean Content SDK is installed and at version `8.5.8` in the application's dependencies or deployment.\n- unknown for other checks: the sources do not give a command or file path.","fix":"- Move the Oracle Outside In Clean Content SDK to a patched release from Oracle's Critical Patch Update advisory; the fixed version is unknown from the sources.","status":"open","published_at":"2026-10-20T22:20:37+00:00","first_seen_at":"2026-10-23T21:57:26+00:00","triaged_at":"2026-10-25T03:18:29+00:00","updated_at":"2026-10-25T03:18:29+00:00","category":"package","confidence":0.7,"triage":{"at":"2026-10-25T03:18:29Z","model":"claude-haiku-5-5","output":{"fix":"- Move the Oracle Outside In Clean Content SDK to a patched release from Oracle's Critical Patch Update advisory; the fixed version is unknown from the sources.","reach":"internet","title":"Oracle Outside In Clean Content SDK: unauthenticated network crash denies service","impact":"low","summary":"The Oracle Outside In Clean Content SDK 8.5.8 can be made to hang or repeatedly crash over HTTP by an unauthenticated remote attacker. The impact is availability only: a successful attack takes the component down repeatedly but does not expose data or allow code execution according to the CVSS vector.","category":"package","nicknames":[],"who_cares":["oracle","fusion-middleware","outside-in","self-hosted"],"confidence":0.7,"needs_auth":"no","worst_case":"Service hangs or repeatedly crashes, causing complete denial of service","analyst_note":"Find the Oracle Critical Patch Update advisory that lists the fixed Outside In Clean Content SDK version and which products bundle it (https://nvd.nist.gov/vuln/detail/CVE-2026-91349).","how_to_check":"- Check whether the Oracle Outside In Clean Content SDK is installed and at version `8.5.8` in the application's dependencies or deployment.\n- unknown for other checks: the sources do not give a command or file path.","needs_analyst":true,"not_affected_if":["no-outside-in-sdk"],"who_is_affected":"Teams running Oracle Fusion Middleware with the Outside In Clean Content SDK 8.5.8 that accepts content over HTTP from untrusted sources. Systems that do not ship or expose this SDK can skip it; the sources do not say which products bundle it.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000666,"input_tokens":3477,"output_tokens":636,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-2026':13A,16A '-91349':14A,17A '/av':158C '3.1':148C,157C '7.5':151C '8.5.8':36B,104C 'abil':131C 'access':113C 'accord':74B 'affect':102C 'allow':71B,108C 'attack':51B,59B,110C,123C 'avail':55B,152C 'base':149C 'caus':133C 'clean':4A,33B,94C 'code':72B 'complet':140C 'compon':62B,91C 'compromis':117C 'content':5A,34B,95C 'crash':9A,44B,139C 'cve':12A,15A 'cvss':77B,147C,154C,156C 'data':69B 'deni':10A 'dos':141C 'easili':105C 'execut':73B 'exploit':106C 'expos':68B 'frequent':137C 'fusion':19B,89C 'fusion-middlewar':18B 'h':166C 'hang':41B,135C 'host':28B 'http':46B,115C 'impact':53B,153C 'l/pr':160C 'made':39B 'middlewar':20B,90C 'n/a':165C 'n/ac':159C 'n/i':164C 'n/s':162C 'n/ui':161C 'network':8A,112C 'oracl':1A,21B,30B,82C,88C,118C,143C 'outsid':2A,23B,31B,83C,92C,119C,144C 'outside-in':22B 'packag':25B 'product':86C 'remot':50B 'repeat':43B,64B,138C 'result':128C 'score':150C 'sdk':6A,35B,96C 'self':27B 'self-host':26B 'servic':11A 'success':58B,122C 'support':98C 'take':60B 'technolog':85C,121C,146C 'u/c':163C 'unauthent':7A,49B,109C 'unauthor':130C 'vector':78B,155C 'version':99C 'via':114C 'vulner':79C,107C,126C","nicknames":[],"mitigations":[],"who_affected":"Teams running Oracle Fusion Middleware with the Outside In Clean Content SDK 8.5.8 that accepts content over HTTP from untrusted sources. Systems that do not ship or expose this SDK can skip it; the sources do not say which products bundle it.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:20:37+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvss_by":"secalert_us@oracle.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-91349","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-91349","severity":null,"published_at":"2026-10-20T22:20:37+00:00","modified_at":"2026-10-22T19:18:04+00:00","first_seen_at":"2026-10-23T21:57:26+00:00","fetched_at":"2026-10-23T22:29:00+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}