[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-CVE-2026-61674":6},{"stargazers_count":4,"fetched_at":5},8,"2026-09-21T21:38:57.784Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":32,"aliases":33,"duplicate_of":9,"upstream":34,"downstream":35,"duplicates":36,"related":37,"reserved_at":9,"published_at":38,"modified_at":39,"state":40,"summary":41,"references_raw":48,"kevs":68,"epss":9,"epss_history":69,"metrics":70,"affected":77},"CVE-2026-61674","Fluent Bit is a fast and lightweight logs, metrics, and traces processor for Linux, BSD, macOS, and Windows. From 0.11.0 until 5.0.8, plugins/out_forward/forward.c secure_forward_pong copies the server-controlled PONG[2] reason into the 32-byte stack buffer msg with memcpy without checking its MessagePack type or length. An attacker who controls or can impersonate an out_forward Secure Forward destination configured with Shared_Key or Empty_Shared_Key can send an oversized reason during the first handshake and overwrite stack control data. Protected builds reliably terminate, while builds without a stack canary or with a disclosure can allow remote code execution as the Fluent Bit process user. When the opt-in --supervisor mode is used, fork-only respawns preserve the canary and address layout, allowing repeated crash-or-survive probes to support code execution on a hardened build; ordinary exec-based or service-manager restarts do not preserve that state. This issue is fixed in version 5.0.8.",null,[11,20,26],{"_key":12,"id":12,"name":13,"description":14,"type":15,"status":16,"abstraction":17,"likelihood_of_exploit":18,"capec":19},"CWE-121","Stack-based Buffer Overflow","A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).","weakness","Draft","Variant","High",[],{"_key":21,"id":21,"name":22,"description":23,"type":15,"status":16,"abstraction":24,"likelihood_of_exploit":18,"capec":25},"CWE-787","Out-of-bounds Write","The product writes data past the end, or before the beginning, of the intended buffer.","Base",[],{"_key":27,"id":27,"name":28,"description":29,"type":15,"status":30,"abstraction":24,"likelihood_of_exploit":9,"capec":31},"CWE-843","Access of Resource Using Incompatible Type ('Type Confusion')","The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.","Incomplete",[],[],[],[],[],[],[],"2026-09-21T16:10:15.276Z","2026-09-21T18:52:25.840Z","Received",{"cisa_kev":42,"cisa_ransomware":42,"cisa_vendor":9,"epss_severity":9,"epss_score":9,"severity":43,"severity_score":44,"severity_version":45,"severity_source":46,"severity_vector":47,"severity_status":40},false,"critical",9.2,"v4.0","cve.org","CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",[49,55,60,64],{"url":50,"sources":51,"tags":53},"https://github.com/fluent/fluent-bit/security/advisories/GHSA-jrp8-r9hx-gf73",[46,52],"nvd",[54],"X Refsource CONFIRM",{"url":56,"sources":57,"tags":58},"https://github.com/fluent/fluent-bit/pull/11945",[46,52],[59],"X Refsource MISC",{"url":61,"sources":62,"tags":63},"https://github.com/fluent/fluent-bit/commit/45486556be9d023e194665e243f156b228e195e0",[46,52],[59],{"url":65,"sources":66,"tags":67},"https://github.com/fluent/fluent-bit/releases/tag/v5.0.8",[46,52],[59],[],[],[71,74],{"source":46,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":9,"cvss_v4_0":72},{"baseScore":44,"baseSeverity":73,"vectorString":47,"impactScore":9,"exploitabilityScore":9},"CRITICAL",{"source":52,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":9,"cvss_v4_0":75},{"baseScore":44,"baseSeverity":73,"vectorString":76,"impactScore":9,"exploitabilityScore":9},"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/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",[78],{"ecosystem":9,"name":79,"vendor":80,"product":79,"cpe_part":81,"purl_type":9,"purl_namespace":9,"purl_name":9,"source":9,"versions":82},"fluent-bit","fluent","a",[83],{"version":84,"is_range":85,"range_type":46,"version_start":86,"version_start_type":87,"version_end":88,"version_end_type":89,"fixed_in":9},">= 0.11.0, \u003C 5.0.8",true,"0.11.0","including","5.0.8","excluding"]