CVE-2026-39824 Invoking integer overflow in NewNTUnicodeString in golang.org/x/sys/windows

NewNTUnicodeString does not check for string length overflow. When provided with a string that overflows the maximum size of a NTUnicodeString a 16-bit number of bytes, it returns a truncated string rather than an error...

Integer Overflow or Wraparound

Overview Affected versions of this package are vulnerable to Integer Overflow or Wraparound in the NewNTUnicodeString function. An attacker can cause a truncated string rather than an error to be returned by convincing a user to access a filename of excessive length. Remediation Upgrade...

Cross-site Scripting (XSS)

Overview github.com/golang/net/html is a package that implements an HTML5-compliant tokenizer and parser. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the writeQuoted function, which does not properly handle characters in DOCTYPE data. An attacker can cause the...

Cross-site Scripting (XSS)

Overview golang.org/x/net/html is a package that implements an HTML5-compliant tokenizer and parser. Affected versions of this package are vulnerable to Cross-site Scripting XSS in the inBodyEndTagOther function, when rendering sanitized HTML. An attacker can cause the execution of scripts in the...

Cross-site Scripting (XSS)

Overview github.com/golang/net/html is a package that implements an HTML5-compliant tokenizer and parser. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the childTextNodesAreLiteral function in render.go. An attacker can cause the execution of scripts in the...

Cross-site Scripting (XSS)

Overview golang.org/x/net/html is a package that implements an HTML5-compliant tokenizer and parser. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the childTextNodesAreLiteral function in render.go. An attacker can cause the execution of scripts in the context o...

Inefficient Algorithmic Complexity

Overview golang.org/x/net/html is a package that implements an HTML5-compliant tokenizer and parser. Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity in parse.go, when checking attributes iteratively. An attacker can cause excessive CPU consumption by providi...

CVE-2026-27136 Invoking duplicate attributes can cause XSS in golang.org/x/net/html

Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering...

CVE-2026-25681

CVE-2026-25681 affects the golang.org/x/net/html component. The root cause is an incorrect handling of character references in DOCTYPE nodes, which can cause an unexpected HTML tree when rendering and potentially enable XSS in applications that sanitize input HTML before rendering. The descriptio...

CVE-2026-25680

CVE-2026-25680 affects the Go ecosystem’s HTML parser in golang.org/x/net/html. Description: parsing arbitrary HTML can cause excessive CPU time, potentially leading to denial of service. CVSSv3.1 base score 6.5 (Network, Low attack complexity, User interaction required, Availability impact). Con...

CVE-2026-25680 Invoking denial of service when parsing arbitrary HTML in golang.org/x/net/html

Parsing arbitrary HTML can consume excessive CPU time, possibly leading to denial of service...

CVE-2026-42506 Invoking incorrect handling of namespaced elements in foreign content in golang.org/x/net/html

Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering...

CVE-2026-42506 Invoking incorrect handling of namespaced elements in foreign content in golang.org/x/net/html

Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering...

CVE-2026-42502

Summary of CVE-2026-42502 : The vulnerability concerns the Go project’s HTML parsing in the package golang.org/x/net/html. The root cause is an incorrect handling of HTML elements in foreign content during parsing, which can produce an unexpected HTML tree when rendering with Render. This behavio...

CVE-2026-25681 Invoking incorrect handling of character references in DOCTYPE nodes in golang.org/x/net/html

Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering...

CVE-2026-39821

CVE-2026-39821 affects golang.org/x/net/idna; ToASCII/ToUnicode incorrectly accept Punycode-encoded labels that decode to ASCII-only labels (e.g., xn--example-.com). The issue can enable privilege escalation in programs that validate ASCII hostnames but later convert to Unicode, potentially grant...

CVE-2026-25680 Invoking denial of service when parsing arbitrary HTML in golang.org/x/net/html

Parsing arbitrary HTML can consume excessive CPU time, possibly leading to denial of service...

Missing Release of Resource after Effective Lifetime

Overview github.com/golang/crypto/ssh is a SSH client and server Affected versions of this package are vulnerable to Missing Release of Resource after Effective Lifetime through the repeated opening of channels by an authenticated SSH client that are subsequently rejected by the server. An attack...

Missing Release of Resource after Effective Lifetime

Overview golang.org/x/crypto/ssh is a SSH client and server Affected versions of this package are vulnerable to Missing Release of Resource after Effective Lifetime through the repeated opening of channels by an authenticated SSH client that are subsequently rejected by the server. An attacker ca...

Improper Authentication

Overview github.com/golang/crypto/ssh is a SSH client and server Affected versions of this package are vulnerable to Improper Authentication due to the Verify method not checking the User Presence flag in FIDO/U2F security key types. An attacker can perform unauthorized authentication by generati...