PYSEC-2026-4297 PyMongo: PYTHON-5986 Host injection in PyMongo connection string parsing via percent-encoded delimiters

Summary PyMongo percent-decoded the entire host section of a connection string before splitting it into individual host:port entries. A percent-encoded , or : in a hostname therefore decoded into a real delimiter, injecting an additional attacker-chosen host and port into the client's seed list...

PyMongo: PYTHON-5986 Host injection in PyMongo connection string parsing via percent-encoded delimiters

SummaryPyMongo percent-decoded the entire host section of a connection string before splitting it into individual host:port entries. A percent-encoded , or : in a hostname therefore decoded into a real delimiter, injecting an additional attacker-chosen host and port into the client's seed list...

PyMongo: PYTHON-5986 Host injection in PyMongo connection string parsing via percent-encoded delimiters

Summary PyMongo percent-decoded the entire host section of a connection string before splitting it into individual host:port entries. A percent-encoded , or : in a hostname therefore decoded into a real delimiter, injecting an additional attacker-chosen host and port into the client's seed list...

GHSA-VP6J-J7W5-5XJJ PyMongo: PYTHON-5986 Host injection in PyMongo connection string parsing via percent-encoded delimiters

Summary PyMongo percent-decoded the entire host section of a connection string before splitting it into individual host:port entries. A percent-encoded , or : in a hostname therefore decoded into a real delimiter, injecting an additional attacker-chosen host and port into the client's seed list...

openSUSE 16 Security Update : python-pymongo (openSUSE-SU-2026:22003-1)

The remote openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:22003-1 advisory. Changes in python-pymongo: - CVE-2026-96749: integer overflow in BSON document encoding allows an unprivileged user to write outside the bounds ...

OPENSUSE-SU-2026:22003-1 Security update for python-pymongo

This update for python-pymongo fixes the following issues: Changes in python-pymongo: - CVE-2026-96749: integer overflow in BSON document encoding allows an unprivileged user to write outside the bounds of an allocated buffer bsc1282845 - CVE-2026-96748: host injection in connection string leadin...

Security update for python-pymongo

This update for python-pymongo fixes the following issues: CVE-2026-96747: improper handling of key management endpoint values ending in .sock allows users with write access to the encryption key metadata to open connections to local sockets on the application host bsc1282844. CVE-2026-96748: hos...

AZL-105107 CVE-2026-96748 affecting package python-pymongo 4.2.0-9

PyMongo's connection string parsing decodes percent-encoded characters in the host portion before the host list is separated on its delimiters. When an application places a hostname value supplied by an unauthenticated party into a connection string, that party may cause additional servers of the...

EUVD-2026-61222

fastify vulnerable to X-Forwarded- spoofing under trustProxy hop-count...

fastify vulnerable to X-Forwarded-* spoofing under trustProxy hop-count

Impact The fix for CVE-2026-3635 GHSA-444r-cwp2-x5xf added a proxyFnsocket.remoteAddress, 0 guard on the X-Forwarded- reads in request.host, request.protocol, request.hostname, request.ip, and request.ips. That guard closes the IP, CIDR, and custom-function forms of trustProxy correctly because...

CVE-2026-16732

A flaw was found in fastify. When configured with a numeric trustProxy value, an attacker who can directly access the Fastify origin, bypassing the front-facing proxy, can spoof forwarded request fields. This vulnerability allows for host injection in generated URLs, bypasses HTTPS enforcement, a...

CVE-2026-16732

fastify is a fast and low overhead web framework for Node.js. Impact: the fix for CVE-2026-3635 added a guard on the forwarded-header reads used to derive the request host, protocol, hostname, ip, and ips values, checking the connecting address. That guard closes the IP, CIDR, and custom-function...

CVE-2026-16732 fastify vulnerable to X-Forwarded-* spoofing under trustProxy hop-count

fastify is a fast and low overhead web framework for Node.js. Impact: the fix for CVE-2026-3635 added a guard on the forwarded-header reads used to derive the request host, protocol, hostname, ip, and ips values, checking the connecting address. That guard closes the IP, CIDR, and custom-function...

CVE-2026-16732

Fastify 5.8.3–5.12.0 remains vulnerable to X-Forwarded-* spoofing when trustProxy is set numerically (e.g., 1), because the CVE-2026-3635 guard predicate ignores the connecting address. This enables host injection, HTTPS-enforcement bypass, secure-cookie/CSRF-origin bypass, and cache poisoning. P...

CVE-2026-16732 fastify vulnerable to X-Forwarded-* spoofing under trustProxy hop-count

fastify is a fast and low overhead web framework for Node.js. Impact: the fix for CVE-2026-3635 added a guard on the forwarded-header reads used to derive the request host, protocol, hostname, ip, and ips values, checking the connecting address. That guard closes the IP, CIDR, and custom-function...

CVE-2026-16732 fastify vulnerable to X-Forwarded-* spoofing under trustProxy hop-count

fastify is a fast and low overhead web framework for Node.js. Impact: the fix for CVE-2026-3635 added a guard on the forwarded-header reads used to derive the request host, protocol, hostname, ip, and ips values, checking the connecting address. That guard closes the IP, CIDR, and custom-function...

PT-2026-77311

Name of the Vulnerable Software and Affected Versions fastify versions 5.8.3 through 5.12.0 Description An issue exists in the handling of forwarded-header reads used to derive request host, protocol, hostname, ip, and ips values. When the trustProxy setting is configured with a numeric hop-count...

CVE-2026-16732: Use of Less Trusted Source

fastify is a fast and low overhead web framework for Node.js. Impact: the fix for CVE-2026-3635 added a guard on the forwarded-header reads used to derive the request host, protocol, hostname, ip, and ips values, checking the connecting address. That guard closes the IP, CIDR, and custom-function...

CVE-2026-73845

CKAN MCP Server is a tool for querying CKAN open data portals. Prior to 0.4.112, the ckangetmqaquality and ckangetmqaqualitydetails tools in src/tools/quality.ts use isValidMqaServer to validate the serverurl parameter with a prefix-only regular expression for dati.gov.it, allowing suffix-host an...

CVE-2026-48061 Litestar: AllowedHostsMiddleware bypasses host validation via client-controlled X-Forwarded-Host header

Litestar is an Asynchronous Server Gateway Interface ASGI framework. In versions prior to 2.22.0, an attacker can bypass the allowed hosts validation by omitting the Host header and supplying an X-Forwarded-Host header set to a whitelisted domain. The AllowedHostsMiddleware trusts the...