OpenTelemetry eBPF Instrumentation: MongoDB parser panics on malformed wire messages

Summary Malformed MongoDB wire messages can trigger uncaught panics in the MongoDB TCP parser, allowing a remote unauthenticated attacker to crash the telemetry agent and cause a denial of service. The parser operates on raw attacker-controlled network payloads before the input is fully validated...

Incorrect Type Conversion or Cast

Overview Affected versions of this package are vulnerable to Incorrect Type Conversion or Cast through the parseOpMessage, parseSections, and parseFirstField functions. An attacker can cause the telemetry agent to crash and disrupt observability by sending specially crafted MongoDB wire messages ...

Incorrect Type Conversion or Cast

Overview Affected versions of this package are vulnerable to Incorrect Type Conversion or Cast through the parseOpMessage, parseSections, and parseFirstField functions. An attacker can cause the telemetry agent to crash and disrupt observability by sending specially crafted MongoDB wire messages ...

GHSA-962Q-HWM5-52X5 OpenTelemetry eBPF Instrumentation: CappedConcurrentHashMap leaks keys after removals

Summary The custom CappedConcurrentHashMap introduced for Java TLS state tracking never removes keys from its insertion-order queue when entries are deleted. In long-running instrumented JVMs, repeated connection churn can therefore grow the queue without bound and exhaust heap memory. Details Th...

OpenTelemetry eBPF Instrumentation: CappedConcurrentHashMap leaks keys after removals

Summary The custom CappedConcurrentHashMap introduced for Java TLS state tracking never removes keys from its insertion-order queue when entries are deleted. In long-running instrumented JVMs, repeated connection churn can therefore grow the queue without bound and exhaust heap memory. Details Th...

OpenTelemetry eBPF Instrumentation: Java TLS ioctl kprobe allows kernel memory disclosure

Summary The Java TLS ioctl probe reads user-controlled ioctl pointers with bpfproberead instead of bpfprobereaduser. An instrumented local process can therefore point OBI at kernel memory and cause that memory to be copied into telemetry. Details The vulnerable path is in...

OpenTelemetry eBPF Instrumentation: CPU-mismatch fallback uses 256-byte buffer with 8KB size

Summary The per-CPU message-buffer fallback path uses a 256-byte backup buffer but preserves the original payload size, which can be up to 8KB. If a CPU mismatch occurs, OBI can read beyond the fallback buffer and leak adjacent memory into telemetry. Details...

GHSA-R6C9-G6Q5-QRF9 OpenTelemetry eBPF Instrumentation: CPU-mismatch fallback uses 256-byte buffer with 8KB size

Summary The per-CPU message-buffer fallback path uses a 256-byte backup buffer but preserves the original payload size, which can be up to 8KB. If a CPU mismatch occurs, OBI can read beyond the fallback buffer and leak adjacent memory into telemetry. Details...

GHSA-89C6-VPCJ-7VJ4 OpenTelemetry eBPF Instrumentation: Unbounded BPF internal metrics replay can exhaust CPU

Summary OBI replays BPF probe hits into histogram observations by looping once per recorded run count. On busy systems, the run-count delta can become very large, causing the metrics exporter to spend excessive CPU time in a tight loop every collection interval. Details The vulnerable loop is in...

Excessive Iteration

Overview Affected versions of this package are vulnerable to Excessive Iteration in the prombpf.go process. An attacker can cause excessive CPU consumption by generating a high volume of probe activity, which leads to unbounded replay of internal metrics during each collection interval. Remediati...

OpenTelemetry eBPF Instrumentation: Postgres BIND parsing can panic on malformed payloads

Summary The Postgres protocol parser assumes BIND message payloads contain a valid NUL-terminated portal name. A crafted empty or unterminated payload can make OBI slice beyond the end of the captured buffer and panic. Details The vulnerable logic is in pkg/ebpf/common/sqldetectpostgres.go. In th...

GHSA-8RRQ-WCG8-CV5Q OpenTelemetry eBPF Instrumentation: Redis error text is exported in span status messages

Summary OBI exports raw Redis error text as the span status message. Because Redis error replies can contain attacker-controlled or sensitive values, this behavior can exfiltrate tokens, PII, or other confidential input into telemetry backends and inject untrusted text into downstream analysis...

Insertion of Sensitive Information into Log File

Overview Affected versions of this package are vulnerable to Insertion of Sensitive Information into Log File in the process that exports Redis error text as span status messages without adequate sanitization. An attacker can cause sensitive information, such as tokens or personally identifiable...

OpenTelemetry eBPF Instrumentation: Redis error text is exported in span status messages

Summary OBI exports raw Redis error text as the span status message. Because Redis error replies can contain attacker-controlled or sensitive values, this behavior can exfiltrate tokens, PII, or other confidential input into telemetry backends and inject untrusted text into downstream analysis...

GHSA-WP73-MWGF-4JQ9 OpenTelemetry eBPF Instrumentation: Unsafe fastelf parsing allows malformed ELF to crash agent

Summary OBI's replacement ELF parser trusts section offsets, counts, and string offsets from the executable file. A crafted local ELF can make OBI dereference invalid section pointers or slice past string tables, causing the agent to panic while determining the process language. Details...

n8n-MCP: Workflow telemetry sanitizer could retain partial values from URL-shaped node parameters

Summary In affected versions of n8n-mcp, the workflow telemetry sanitizer could retain partial fragments of URL-shaped node parameters before sending workflow data to the project's anonymous telemetry backend. Values placed in HTTP-Request-style node parameters — such as customer or tenant...

Insertion of Sensitive Information Into Sent Data

Overview n8n-mcp is an Integration between n8n workflow automation and Model Context Protocol MCP Affected versions of this package are vulnerable to Insertion of Sensitive Information Into Sent Data in the telemetry sanitization process in event-validator.ts. An operator with access to the...

NPM: n8n-MCP: Workflow telemetry sanitizer could retain partial values from URL-shaped node parameters

NPM: n8n-MCP: Workflow telemetry sanitizer could retain partial values from URL-shaped node parameters vulnerability discovered by ? in WordPress Npm n8n-mcp versions 2.51.3...

GHSA-F3RG-XQJJ-CJ9W n8n-MCP: Workflow telemetry sanitizer could retain partial values from URL-shaped node parameters

Summary In affected versions of n8n-mcp, the workflow telemetry sanitizer could retain partial fragments of URL-shaped node parameters before sending workflow data to the project's anonymous telemetry backend. Values placed in HTTP-Request-style node parameters — such as customer or tenant...

PT-2026-41786

Name of the Vulnerable Software and Affected Versions OpenTelemetry eBPF Instrumentation versions prior to 0.9.0 Description The per-CPU message-buffer fallback path uses a 256-byte backup buffer but preserves the original payload size, which can reach up to 8KB. If a CPU mismatch occurs between...