CVE-2026-42260 Open-WebSearch: SSRF in `fetchWebContent` MCP tool: bracketed IPv6 literals and non-resolving hostname check bypass `isPrivateOrLocalHostname`

Open-WebSearch is a multi-engine MCP server, CLI, and local daemon for agent web search and content retrieval. Prior to 2.1.7, isPublicHttpUrl / assertPublicHttpUrl in src/utils/urlSafety.ts do not recognize bracketed IPv6 literals and do not resolve DNS, which combine to allow non-blind SSRF wit...

open-websearch has SSRF in `fetchWebContent` MCP tool: bracketed IPv6 literals and non-resolving hostname check bypass `isPrivateOrLocalHostname`

Summary src/utils/urlSafety.ts exposes isPublicHttpUrl / assertPublicHttpUrl, used to gate the MCP fetchWebContent tool against private-network targets. The check has two defects that together allow non-blind SSRF with the response body returned to the caller: 1. Bracketed IPv6 literals are never...

Amazon Linux 2 : cni-plugins, --advisory ALAS2-2025-3078 (ALAS-2025-3078)

The version of cni-plugins installed on the remote host is prior to 1.7.1-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2025-3078 advisory. net/url: insufficient validation of bracketed IPv6 hostnames The Parse function permitted values other than IPv6...

Amazon Linux 2 : containerd, --advisory ALAS2NITRO-ENCLAVES-2025-074 (ALASNITRO-ENCLAVES-2025-074)

The version of containerd installed on the remote host is prior to 2.1.4-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2NITRO-ENCLAVES-2025-074 advisory. net/url: insufficient validation of bracketed IPv6 hostnames The Parse function permitted values other tha...

Amazon Linux 2023 : soci-snapshotter (ALAS2023-2025-1277)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-1277 advisory. net/url: insufficient validation of bracketed IPv6 hostnames The Parse function permitted values other than IPv6 addresses to be included in square brackets within the host component of a URL...

Important: soci-snapshotter

Issue Overview: net/url: insufficient validation of bracketed IPv6 hostnames The Parse function permitted values other than IPv6 addresses to be included in square brackets within the host component of a URL. RFC 3986 permits IPv6 addresses to be included within the host component, enclosed withi...

Important: containerd

Issue Overview: net/url: insufficient validation of bracketed IPv6 hostnames The Parse function permitted values other than IPv6 addresses to be included in square brackets within the host component of a URL. RFC 3986 permits IPv6 addresses to be included within the host component, enclosed withi...

Important: golist

Issue Overview: net/url: insufficient validation of bracketed IPv6 hostnames The Parse function permitted values other than IPv6 addresses to be included in square brackets within the host component of a URL. RFC 3986 permits IPv6 addresses to be included within the host component, enclosed withi...

Important: containerd

Issue Overview: net/url: insufficient validation of bracketed IPv6 hostnames The Parse function permitted values other than IPv6 addresses to be included in square brackets within the host component of a URL. RFC 3986 permits IPv6 addresses to be included within the host component, enclosed withi...

PT-2016-3318 · Libevent +5 · Libevent +5

Name of the Vulnerable Software and Affected Versions: libevent versions prior to 2.1.6-beta Description: The issue is related to a stack-based buffer overflow in the evutil parse sockaddr port function, which can be exploited by attackers to cause a denial of service, resulting in a segmentation...