Monkey Server security vulnerabilities

Monkey Server is an open-source HTTP server developed by Monkey I/O. There is a security vulnerability in Monkey Server, which stems from a null pointer dereferencing in the mkhttprangeparse function. This vulnerability may lead to denial-of-service attacks...

CVE-2025-63656

An out-of-bounds read in the headercmp function mkserver/mkhttpparser.c of monkey commit f37e984 allows attackers to cause a Denial of Service DoS via sending a crafted HTTP request to the server...

CVE-2025-63658

A stack overflow in the mkhttpindexlookup function mkserver/mkhttp.c of monkey commit f37e984 allows attackers to cause a Denial of Service DoS via sending a crafted HTTP request to the server...

CVE-2025-63651

A use-after-free in the mkstringcharsearch function mkcore/mkstring.c of monkey commit f37e984 allows attackers to cause a Denial of Service DoS via sending a crafted HTTP request to the server...

CVE-2025-63658

A stack overflow in the mkhttpindexlookup function mkserver/mkhttp.c of monkey commit f37e984 allows attackers to cause a Denial of Service DoS via sending a crafted HTTP request to the server...

EUVD-2025-206527

A use-after-free in the mkhttprequestend function mkserver/mkhttp.c of monkey commit f37e984 allows attackers to cause a Denial of Service DoS via sending a crafted HTTP request to the server...

PT-2026-5339

Name of the Vulnerable Software and Affected Versions Monkey affected versions not specified Description A use-after-free issue exists in the mk http request end function located in mk server/mk http.c. This flaw allows attackers to potentially cause a Denial of Service DoS by sending a specially...

CVE-2025-63652

A use-after-free vulnerability (CVE-2025-63652) exists in Monkey’s HTTP server code path mk_http_request_end (file mk_server/mk_http.c) triggered by crafted HTTP requests. Reported against commit f37e984, it can cause Denial of Service. The issue is documented across multiple sources (Red Hat, NV...

CVE-2025-63651

A use-after-free in the mkstringcharsearch function mkcore/mkstring.c of monkey commit f37e984 allows attackers to cause a Denial of Service DoS via sending a crafted HTTP request to the server...

PT-2026-5340

Name of the Vulnerable Software and Affected Versions monkey commit f37e984 Description An out-of-bounds read exists in the mk vhost fdt close function located in mk server/mk vhost.c. This issue allows attackers to cause a Denial of Service DoS by sending a crafted HTTP request to the server...

Monkey Server security vulnerabilities

Monkey Server is an open-source HTTP server developed by Monkey I/O. There is a security vulnerability in Monkey Server, which stems from an out-of-bounds read in the mkvhostfdtclose function, potentially leading to a denial-of-service attack...

EUVD-2025-206526

An out-of-bounds read in the mkvhostfdtclose function mkserver/mkvhost.c of monkey commit f37e984 allows attackers to cause a Denial of Service DoS via sending a crafted HTTP request to the server...

CVE-2025-63653

An out-of-bounds read in the mkvhostfdtclose function mkserver/mkvhost.c of monkey commit f37e984 allows attackers to cause a Denial of Service DoS via sending a crafted HTTP request to the server...

PT-2026-5343

Name of the Vulnerable Software and Affected Versions monkey commit f37e984 Description An out-of-bounds read exists in the mk mimetype find function located in mk server/mk mimetype.c. This issue can be triggered by sending a crafted HTTP request to the server, potentially leading to a Denial of...

CVE-2025-63649

An out-of-bounds read in the httpparsertransferencodingchunked function mkserver/mkhttpparser.c of monkey commit f37e984 allows attackers to cause a Denial of Service DoS via sending a crafted POST request to the server...

CVE-2025-63655

A NULL pointer dereference in the mkhttprangeparse function mkserver/mkhttp.c of monkey commit f37e984 allows attackers to cause a Denial of Service DoS via sending a crafted HTTP request to the server...

PT-2026-5341

Name of the Vulnerable Software and Affected Versions Monkey versions prior to commit f37e984 Description A flaw exists in the mk http range parse function located in mk server/mk http.c that can lead to a Denial of Service DoS. This occurs when a specially crafted HTTP request is sent to the...

Monkey Server security vulnerabilities

Monkey Server is an open-source HTTP server developed by Monkey I/O. There is a security vulnerability in Monkey Server, which stems from an out-of-bounds read in the headercmp function, potentially leading to a denial-of-service attack...

CVE-2025-63652

A use-after-free in the mkhttprequestend function mkserver/mkhttp.c of monkey commit f37e984 allows attackers to cause a Denial of Service DoS via sending a crafted HTTP request to the server...

CVE-2025-63655

A NULL pointer dereference in the mkhttprangeparse function mkserver/mkhttp.c of monkey commit f37e984 allows attackers to cause a Denial of Service DoS via sending a crafted HTTP request to the server...