html/template: golang: Go html/template: Cross-Site Scripting via pathological input

A flaw was found in the html/template component of Go golang. Pathological inputs could prematurely close an unescaped forward slash '/', allowing an attacker to inject arbitrary content. This could lead to Cross-Site Scripting XSS, where malicious scripts are executed in a user's browser,...

encoding/asn1: golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal

A flaw was found in the encoding/asn1 package in Go. An attacker could provide a specially crafted, deeply-nested Abstract Syntax Notation One ASN.1 structure, leading to excessive recursion during the Unmarshal operation. This could result in stack exhaustion and a Denial of Service DoS conditio...

Klever-Go: Validator registration accepts an unvalidated BLS public key → consensus liveness DoS

Location: core/kapp/validators/validators.go:201 Register, genesis/checking/nodesSetupChecker.go:73. core/consensus/slot/bls/subslotStartSlot.go:165 core/consensus/.../headerSignatureVerify.go:123 Create.... Description Klever uses a BDN Boneh-Drijvers-Neven BLS multi-signature over BLS12-381 to...

GHSA-9WH6-9HQ7-9688 Klever-Go: Validator registration accepts an unvalidated BLS public key → consensus liveness DoS

Location: core/kapp/validators/validators.go:201 Register, genesis/checking/nodesSetupChecker.go:73. core/consensus/slot/bls/subslotStartSlot.go:165 core/consensus/.../headerSignatureVerify.go:123 Create.... Description Klever uses a BDN Boneh-Drijvers-Neven BLS multi-signature over BLS12-381 to...

GHSA-7C7C-373R-GFJJ Klever-Go: Elasticsearch bulk / painless injection via on-chain account name -> explorer/indexer data forgery

Component: Elasticsearch indexer indexer/ Primary location: indexer/common.go:2395-2407 serializedDataForUpdateAccounts Entry point: SetAccountName native transaction contract type 12 — core/process/transaction/txProcess.go:688 --- Description When the node indexes account updates to Elasticsearc...

Klever-Go: Elasticsearch bulk / painless injection via on-chain account name -> explorer/indexer data forgery

Component: Elasticsearch indexer indexer/ Primary location: indexer/common.go:2395-2407 serializedDataForUpdateAccounts Entry point: SetAccountName native transaction contract type 12 — core/process/transaction/txProcess.go:688 --- Description When the node indexes account updates to Elasticsearc...

Klever-Go: Zombie-order theft: `Buy` missing `IsClaimed` guard in native marketplace

Location: core/kapp/market/market.go — Buy approx. L281–436\ Severity: High The native marketplace enforces an IsClaimed guard in Claim market.go:752, CancelOrder market.go:1125, and orderEscrowAmount market.go:251, but not in Buy. Marketplace escrow is virtual: the market KApp account never...

GHSA-26R5-4MM2-PX5C Klever-Go: Zombie-order theft: `Buy` missing `IsClaimed` guard in native marketplace

Location: core/kapp/market/market.go — Buy approx. L281–436\ Severity: High The native marketplace enforces an IsClaimed guard in Claim market.go:752, CancelOrder market.go:1125, and orderEscrowAmount market.go:251, but not in Buy. Marketplace escrow is virtual: the market KApp account never...

encoding/xml: golang: Go: Denial of Service via XML decoding recursion depth issue

A flaw was found in the encoding/xml package of Go. The DecodeElement function failed to correctly track recursion depth, which could lead to stack exhaustion. A remote attacker could exploit this vulnerability by providing a specially crafted XML input, resulting in a Denial of Service DoS for t...

net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service

A flaw was found in the net/http component of the Go standard library. When a server is configured to support unencrypted HTTP/2, it reads initial bytes from new connections to detect the HTTP/2 client preface. However, the ReadHeaderTimeout is not correctly applied during this process. This...

html/template: golang: Go html/template: Cross-Site Scripting via pathological input

A flaw was found in the html/template component of Go golang. Pathological inputs could prematurely close an unescaped forward slash '/', allowing an attacker to inject arbitrary content. This could lead to Cross-Site Scripting XSS, where malicious scripts are executed in a user's browser,...

encoding/asn1: golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal

A flaw was found in the encoding/asn1 package in Go. An attacker could provide a specially crafted, deeply-nested Abstract Syntax Notation One ASN.1 structure, leading to excessive recursion during the Unmarshal operation. This could result in stack exhaustion and a Denial of Service DoS conditio...

net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service

A flaw was found in the net/http component of the Go standard library. When a server is configured to support unencrypted HTTP/2, it reads initial bytes from new connections to detect the HTTP/2 client preface. However, the ReadHeaderTimeout is not correctly applied during this process. This...

encoding/xml: golang: Go: Denial of Service via XML decoding recursion depth issue

A flaw was found in the encoding/xml package of Go. The DecodeElement function failed to correctly track recursion depth, which could lead to stack exhaustion. A remote attacker could exploit this vulnerability by providing a specially crafted XML input, resulting in a Denial of Service DoS for t...

html/template: golang: Go html/template: Cross-Site Scripting via pathological input

A flaw was found in the html/template component of Go golang. Pathological inputs could prematurely close an unescaped forward slash '/', allowing an attacker to inject arbitrary content. This could lead to Cross-Site Scripting XSS, where malicious scripts are executed in a user's browser,...

encoding/asn1: golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal

A flaw was found in the encoding/asn1 package in Go. An attacker could provide a specially crafted, deeply-nested Abstract Syntax Notation One ASN.1 structure, leading to excessive recursion during the Unmarshal operation. This could result in stack exhaustion and a Denial of Service DoS conditio...

CVE-2026-86065

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the default-open GET /subscribe endpoint in network/api/websocket/routes.go accepts unauthenticated WebSocket clients with permissive origin handling, does not call SetReadLimit to bound message size, and has n...

CVE-2026-86064

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the default-open GET /log WebSocket route configured in config/node/api.yaml and registered by network/api/api.go does not require authentication. The first client message is parsed as a logger Profile in...

CVE-2026-82409

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, indexer/common.go serializedDataForUpdateAccounts places the attacker-controlled acc.Name value into an Elasticsearch bulk JSON and NDJSON request without escaping it. The SetAccountName transaction accepts val...

CVE-2026-82407

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, core/kapp/validators/validators.go Register and the runtime validator update path accept a submitted BLSPublicKey without curve, prime-order subgroup, or nonzero validation. When a validator with a malformed ke...