GO-2026-5686 klever-go: REST API slow-header connection exhaustion via Gin Engine.Run in github.com/klever-io/klever-go

klever-go: REST API slow-header connection exhaustion via Gin Engine.Run in github.com/klever-io/klever-go...

GO-2026-5671 Mattermost doesn't validate the Host header when constructing response URLs for custom slash command in github.com/mattermost/mattermost-server

Mattermost doesn't validate the Host header when constructing response URLs for custom slash command in github.com/mattermost/mattermost-server. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. If this is...

GO-2026-5455 Fleet has a rate limiting bypass via untrusted client IP headers in github.com/fleetdm/fleet

Fleet has a rate limiting bypass via untrusted client IP headers in github.com/fleetdm/fleet...

CVE-2026-40080 Cacti: Open Redirect via HTTP_REFERER substring check in auth_login_redirect

Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior are vulnerable to Open Redirect through a substring check rather than a host check at strcontains$referer, CACTIPATHURL. When the user's loginopts == '1' redirect to referer after login, the function use...

CVE-2025-71336

Flowise before 3.0.6 affected versions 2.2.7-patch.1 and earlier contains an unsandboxed remote code execution vulnerability in the Custom MCP feature, which is designed to execute OS commands such as launching local MCP servers. Because Flowise's authentication and authorization model is minimal...

CVE-2025-71336 Flowise - Unsandboxed Remote Code Execution via Custom MCP

Flowise before 3.0.6 affected versions 2.2.7-patch.1 and earlier contains an unsandboxed remote code execution vulnerability in the Custom MCP feature, which is designed to execute OS commands such as launching local MCP servers. Because Flowise's authentication and authorization model is minimal...

CVE-2025-71336 Flowise - Unsandboxed Remote Code Execution via Custom MCP

Flowise before 3.0.6 affected versions 2.2.7-patch.1 and earlier contains an unsandboxed remote code execution vulnerability in the Custom MCP feature, which is designed to execute OS commands such as launching local MCP servers. Because Flowise's authentication and authorization model is minimal...

CVE-2025-71336

Flowise vulnerability: Unsandboxed remote code execution in Custom MCP. Affected: Flowise before 3.0.6 (2.2.7-patch.1 and earlier). Attack requires crafting a JSON payload and header x-request-from: internal to /api/v1/node-load-method/customMCP, taking advantage of minimal auth to execute OS com...

CVE-2026-42055

A flaw was found in NGINX. When NGINX is configured to proxy HTTP/2 traffic using the ngxhttpproxyv2module or ngxhttpgrpcmodule with specific settings, a remote, unauthenticated attacker can send specially crafted large headers. This can trigger a heap-based buffer overflow, leading to a restart ...

CVE-2026-56789

RTKLIB through 2.4.3 contains a heap buffer overflow vulnerability in the readrnxobsb function in src/rinex.c that allows attackers to trigger memory corruption by failing to clamp satellite count values from RINEX epoch headers. Attackers can craft malicious RINEX files declaring more than 64...

CVE-2026-54089

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Starting with 2.0.0-rc.1, when FileBrowser is configured with proxy authentication auth.method=proxy, any unauthenticated attacker who can reach the server...

CVE-2026-28898

swift-nio-http2's HTTP/2-to-HTTP/1.1 codec did not validate pseudo-header values for control characters before placing them into the translated HTTP/1.1 message. swift-nio-http2 1.44.1 adds validation of all pseudo-header values :path, :authority, :scheme, :method, and :status at both the HPACK...

GO-2026-5310 Apache SkyWalking MCP: Server-Side Request Forgery via SW-URL Header in MCP Server in github.com/apache/skywalking-mcp

Apache SkyWalking MCP: Server-Side Request Forgery via SW-URL Header in MCP Server in github.com/apache/skywalking-mcp...

GO-2026-5298 Go-Attestation: Hash injection into trusted measurement list via unskipped SignatureHeaderSize vendor bytes in parseEfiSignatureList() in github.com/google/go-attestation

Go-Attestation: Hash injection into trusted measurement list via unskipped SignatureHeaderSize vendor bytes in parseEfiSignatureList in github.com/google/go-attestation...

GO-2026-5191 nebula-mesh: POST /api/v1/hosts/{id}/mobile-bundle response lacks Cache-Control: no-store in github.com/juev/nebula-mesh

nebula-mesh: POST /api/v1/hosts/id/mobile-bundle response lacks Cache-Control: no-store in github.com/juev/nebula-mesh...

GO-2026-5232 Unauthenticated Open Redirect, Arbitrary HTTP Response Header Injection, Missing CSRF, and Invisible-Mode Bypass in goshs `/?redirect` endpoint in github.com/patrickhener/goshs

Unauthenticated Open Redirect, Arbitrary HTTP Response Header Injection, Missing CSRF, and Invisible-Mode Bypass in goshs /?redirect endpoint in github.com/patrickhener/goshs...

GO-2026-5271 GitHub CLI has an incorrect authorization header in API requests to TUF repository mirrors via `gh attestation`, `gh release verify`, and `gh release verify-asset` commands in github.com/cli/cli

GitHub CLI has an incorrect authorization header in API requests to TUF repository mirrors via gh attestation, gh release verify, and gh release verify-asset commands in github.com/cli/cli...

GO-2026-5236 OAuth2 Proxy has an Authentication Bypass via X-Forwarded-Uri Header Spoofing in github.com/oauth2-proxy/oauth2-proxy

OAuth2 Proxy has an Authentication Bypass via X-Forwarded-Uri Header Spoofing in github.com/oauth2-proxy/oauth2-proxy...

GO-2026-5199 HashiCorp Vault May Expose Tokens to Auth Plugins Due to Incorrect Header Sanitization in github.com/hashicorp/vault

HashiCorp Vault May Expose Tokens to Auth Plugins Due to Incorrect Header Sanitization in github.com/hashicorp/vault...

GO-2026-5224 Kiota abstractions RedirectHandler leaks Cookie/Proxy-Authorization headers on cross-host redirect in github.com/microsoft/kiota-http-go

Kiota abstractions RedirectHandler leaks Cookie/Proxy-Authorization headers on cross-host redirect in github.com/microsoft/kiota-http-go...