golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via unbounded memory consumption in GSSAPI authentication

A flaw was found in golang.org/x/crypto/ssh. An attacker can exploit this vulnerability by sending specially crafted GSSAPI Generic Security Service Application Program Interface authentication requests to an SSH Secure Shell server. The server fails to validate the number of mechanisms specified...

os: os: Information disclosure via path traversal using specially crafted filenames

A path traversal vulnerability has been identified in the Go os package affecting the Root abstraction, where improper handling of trailing path separators could allow access to the parent directory of a configured root directory. By supplying a filename ending in "../", an attacker may be able t...

golang: net/url: Memory exhaustion in query parameter parsing in net/url

A flaw was found in the net/url package in the Go standard library. The package does not enforce a limit on the number of unique query parameters it parses. A Go application using the net/http.Request.ParseForm method will try to process all parameters provided in the request. A specially crafted...

cmd/go: cmd/go: Arbitrary file write via malicious pkg-config directive

A flaw was found in cmd/go. An attacker can exploit this by building a malicious Go source file that uses the 'cgo pkg-config:' directive. This allows the attacker to write to an arbitrary file with partial control over its content, by providing a '--log-file' argument to the pkg-config command...

golang.org/x/net/http2: golang.org/x/net/http2: Denial of Service due to malformed HTTP/2 frames

A flaw was found in golang.org/x/net/http2. A remote attacker can exploit this vulnerability by sending specially crafted HTTP/2 frames, which are data packets used in the HTTP/2 protocol. Due to a missing check for null values, processing these specific frames types 0x0a through 0x0f can cause t...

golang: cmd/compile: no-op interface conversion bypasses overlap checking

A flaw was found in the cmd/compile package in the Go standard library. A no-op interface conversion prevented the compiler from correctly identifying non-overlapping memory moves. As a result, the compiler allows unsafe memory move operations to occur at runtime, potentially causing data...

net/http: CrossOriginProtection bypass in net/http

A CrossOriginProtection bypass has been discovered in the golang net/http package. When using http.CrossOriginProtection, the AddInsecureBypassPattern method can unexpectedly bypass more requests than intended. CrossOriginProtection then skips validation, but forwards the original request path,...

golang: archive/zip: Excessive CPU consumption when building archive index in archive/zip

A flaw was found in the archive/zip package in the Go standard library. A super-linear file name indexing algorithm is used in the first time a file in an archive is opened. A crafted zip archive containing a specific arrangement of file names can cause an excessive CPU and memory consumption. A ...

cmd/cgo: Go cgo: Code smuggling due to comment parsing discrepancy

A flaw was found in Go's 'cgo tool'. This vulnerability arises from a discrepancy in how Go and C/C++ comments are parsed, which allows for malicious code to be hidden within comments and then "smuggled" into the compiled cgo binary. An attacker could exploit this to embed and execute arbitrary...

golang: cmd/compile: possible memory corruption after bound check elimination

A flaw was found in the cmd/compile package in the Go standard library. The compiler fails to correctly check for integer overflow or underflow in arithmetic operations involving loop induction variables. As a result, the compiler allows invalid memory indexing to occur at runtime, potentially...

golang: internal/syscall/unix: Root.Chmod can follow symlinks out of the root

A flaw was found in the internal/syscall/unix package in the Go standard library. If the target of the Root.Chmod function is replaced with a symbolic link during execution, specifically after Root.Chmod checks the target but before acting, the chmod operation will be performed on the file the...

cmd/go: cmd/go: Local code execution and arbitrary file write via malicious module version strings

A flaw was found in Golang's cmd/go module. This vulnerability allows a local attacker to achieve local code execution by downloading and building modules with specially crafted malicious version strings. On systems with Mercurial hg installed, this can occur when downloading modules from...

crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages

A flaw was found in the crypto/tls package within the Go golang standard library, specifically affecting TLS 1.3 connections. A remote attacker can exploit this vulnerability by sending multiple key update messages in a single record after the handshake. This can cause the connection to deadlock,...

html/template: URLs in meta content attribute actions are not escaped in html/template

An input escaping flaw has been discovered in the golang html/template module. Actions which insert URLs into the content attribute of HTML meta tags are not escaped. This can allow XSS if the meta tag also has an http-equiv attribute with the value "refresh". A new GODEBUG setting has been added...

crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation

A flaw was found in Go's crypto/x509 package. A remote attacker could exploit this by presenting a specially crafted certificate chain containing a large number of policy mappings. This inefficient validation process consumes excessive resources, which can lead to a denial of service DoS for...

html/template: golang: html/template: Cross-Site Scripting (XSS) via improper context and brace depth tracking in JS template literals

A flaw was found in the html/template package. This vulnerability arises from improper tracking of context and brace depth within JavaScript JS template literals. A remote attacker could exploit these issues to cause content to be incorrectly or improperly escaped, leading to Cross-Site Scripting...

crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application

A flaw was found in the crypto/x509 package within Go golang. When verifying a certificate chain, excluded DNS Domain Name System constraints are not correctly applied to wildcard DNS Subject Alternative Names SANs if the case of the SAN differs from the constraint. This oversight could allow an...

crypto/x509: Quadratic complexity when checking name constraints in crypto/x509

A potential denial of service flaw has been discovered in golang's crypto/x509 module. Due to the design of the name constraint checking algorithm, the processing time of some inputs scales non-linearly with respect to the size of the certificate. This affects programs which validate arbitrary...

net/url: Incorrect parsing of IPv6 host literals in net/url

The Go standard library function net/url.Parse insufficiently validated the host/authority component and accepted some invalid URLs by effectively treating garbage before an IP-literal as ignorable. The function should have rejected this as invalid...

CLEANSTART-2026-ZI02697 gRPC-Go is the Go language implementation of gRPC

Multiple security vulnerabilities affect the tempo package. gRPC-Go is the Go language implementation of gRPC. See references for individual vulnerability details...