CVE-2026-42261 PromptHub: Authenticated SSRF via IPv6 filter bypass in `POST /api/skills/fetch-remote`

PromptHub is an all-in-one AI toolbox for prompt, skill, and agent management. From version 0.4.9 to before version 0.5.4, apps/web/src/routes/skills.ts exposes an authenticated endpoint POST /api/skills/fetch-remote that fetches a user-supplied URL server-side and reflects the response body up t...

Linux Distros Unpatched Vulnerability : CVE-2026-43441

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: bonding: Fix ndtbl NULL dereference when IPv6 is disabled When booting with the 'ipv6.disable=1' parameter, the ndtbl is never initialized because inet6ini...

Linux Distros Unpatched Vulnerability : CVE-2026-43329

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: flowtable: strictly check for maximum number of actions The maximum number of flowtable hardware offload actions in IPv6 is: ethernet mangling 4...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel. This vulnerability stems from the ioam6fill TraceData function in IPv6 IOAM, which stores the mode contribution length i...

PT-2026-38992

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the ioam6 fill trace data function where the schema contribution to the trace length is stored in a u8 an 8-bit unsigned integer. When bit 22 is enabled and the largest...

PT-2026-38645

Name of the Vulnerable Software and Affected Versions PromptHub versions 0.4.9 through 0.5.3 Description An authenticated endpoint "/api/skills/fetch-remote" fetches a user-supplied URL server-side and reflects the response body back to the caller. The Server-Side Request Forgery SSRF protection ...

PT-2026-39264

Name of the Vulnerable Software and Affected Versions MCP Registry versions prior to 1.7.7 Description The MCP Registry contains a Server-Side Request Forgery SSRF issue in its HTTP-based namespace verification process. The system uses a function called safeDialContext to prevent connections to...

CVE-2026-42449

n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. In versions 2.47.4 through 2.47.13, the SDK embedder path N8NDocumentationMCPServer constructor, getN8nApiClient, and validateInstanceContext, the synchronous URL validator in...

nuxt-og-image SSRF — bypass of GHSA-pqhr-mp3f-hrpp / v6.2.5 fix (IPv6 + redirect)

Summary The isBlockedUrl denylist introduced in [email protected] to remediate GHSA-pqhr-mp3f-hrpp Dmitry Prokhorov / Positive Technologies, March 2026 is incomplete. The patch advisory states "Decimal/hexadecimal IP encoding bypasses are also handled" — that part is true Node's WHATWG URL pars...

GHSA-C2RM-G55X-8HR5 nuxt-og-image SSRF — bypass of GHSA-pqhr-mp3f-hrpp / v6.2.5 fix (IPv6 + redirect)

Summary The isBlockedUrl denylist introduced in [email protected] to remediate GHSA-pqhr-mp3f-hrpp Dmitry Prokhorov / Positive Technologies, March 2026 is incomplete. The patch advisory states "Decimal/hexadecimal IP encoding bypasses are also handled" — that part is true Node's WHATWG URL pars...

CVE-2026-42449 n8n-MCP: IPv4-mapped IPv6 addresses bypass SSRF protection in validateUrlSync(), enabling full SSRF for SDK embedders

n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. In versions 2.47.4 through 2.47.13, the SDK embedder path N8NDocumentationMCPServer constructor, getN8nApiClient, and validateInstanceContext, the synchronous URL validator in...

CVE-2026-42449

n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. In versions 2.47.4 through 2.47.13, the SDK embedder path N8NDocumentationMCPServer constructor, getN8nApiClient, and validateInstanceContext, the synchronous URL validator in...

CVE-2026-42449 n8n-MCP: IPv4-mapped IPv6 addresses bypass SSRF protection in validateUrlSync(), enabling full SSRF for SDK embedders

n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. In versions 2.47.4 through 2.47.13, the SDK embedder path N8NDocumentationMCPServer constructor, getN8nApiClient, and validateInstanceContext, the synchronous URL validator in...

CVE-2026-42449

Summary: CVE-2026-42449 affects n8n-mcp SDK embedder paths where SSRF protection (SSRFProtection.validateUrlSync) fails to validate IPv4-mapped IPv6 addresses, enabling an attacker-controlled n8nApiUrl to cause the server to make HTTP requests to internal networks, cloud metadata endpoints, or lo...

Important: Red Hat Security Advisory: buildah security update

An update for buildah is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available fo...

Security Bulletin: Improper Hostname Normalization in Axios Enables NO_PROXY Bypass and SSRF Attacks

Summary Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.0 and 0.31.0, Axios does not correctly handle hostname normalization when checking NOPROXY rules. Requests to loopback addresses like localhost. with a trailing dot or ::1 IPv6 literal skip NOPROXY matching an...

Updated perl-Net-CIDR-Lite packages fix security vulnerabilities

Net::CIDR::Lite versions before 0.23 for Perl does not validate IPv6 group count, which may allow IP ACL bypass. CVE-2026-40198 Net::CIDR::Lite versions before 0.23 for Perl mishandles IPv4 mapped IPv6 addresses, which may allow IP ACL bypass. CVE-2026-40199...

SUSE CVE-2026-43088

In the Linux kernel, the following vulnerability has been resolved: net: afkey: zero aligned sockaddr tail in PFKEY exports PFKEY export paths use pfkeysockaddrsize when reserving sockaddr payload space, so IPv6 addresses occupy 32 bytes on the wire. However, pfkeysockaddrfill initializes only th...

SUSE CVE-2026-43099

In the Linux kernel, the following vulnerability has been resolved: ipv4: icmp: fix null-ptr-deref in icmpbuildprobe ipv6stub-ipv6devfind may return ERRPTR-EAFNOSUPPORT when the IPv6 stack is not active CONFIGIPV6=m and not loaded, and passing this error pointer to devhold will cause a kernel cra...

SUSE CVE-2026-43101

In the Linux kernel, the following vulnerability has been resolved: ipv6: ioam: fix potential NULL dereferences in ioam6filltracedata We need to check in6devget for possible NULL value, as suggested by Yiming Qian. Also add skbdstdevrcu instead of skbdstdev, and two missing READONCE. Note that @d...