CVE-2026-45684 OpenTelemetry eBPF Instrumentation: Log enricher writev path can overread and overwrite user buffers

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. From version 0.7.0 to before version 0.9.0, OBI's log enricher mishandles writev buffers by reading only the first iovec entry but using the total ioviter.count as the copy length. When log...

CVE-2026-45684 OpenTelemetry eBPF Instrumentation: Log enricher writev path can overread and overwrite user buffers

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. From version 0.7.0 to before version 0.9.0, OBI's log enricher mishandles writev buffers by reading only the first iovec entry but using the total ioviter.count as the copy length. When log...

CVE-2026-45684

OpenTelemetry eBPF Instrumentation (OBI) log enricher vulnerability CVE-2026-45684: in versions 0.7.0–0.8.x, the writev path mishandles buffers by reading only the first iovec entry while using the total iov_iter.count for the copy length. When log injection is enabled, a crafted multi-segment wr...

EUVD-2026-33956

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, the Java TLS ioctl probe reads user-controlled ioctl pointers with bpfproberead instead of bpfprobereaduser. An instrumented local process can therefore point OBI at kerne...

CVE-2026-45683 OpenTelemetry eBPF Instrumentation: Java TLS ioctl kprobe allows kernel memory disclosure

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, the Java TLS ioctl probe reads user-controlled ioctl pointers with bpfproberead instead of bpfprobereaduser. An instrumented local process can therefore point OBI at kerne...

CVE-2026-45683

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, the Java TLS ioctl probe reads user-controlled ioctl pointers with bpfproberead instead of bpfprobereaduser. An instrumented local process can therefore point OBI at kerne...

CVE-2026-45683

OpenTelemetry eBPF Instrumentation (Java TLS ioctl) is affected prior to version 0.9.0. The vulnerability stems from the probe reading user-supplied ioctl pointers with bpf_probe_read instead of bpf_probe_read_user, enabling a local attacker to cause the kernel memory pointed to by user space to ...

CVE-2026-45681

Summary: OpenTelemetry eBPF Instrumentation contains a memory‑read overflow in the CPU‑mismatch fallback path. Prior to version 0.9.0, a 256‑byte backup buffer is used for the per‑CPU message buffer, while the logical payload size can reach 8KB. If a CPU mismatch occurs, the code can read beyond ...

CVE-2026-45681 OpenTelemetry eBPF Instrumentation: CPU-mismatch fallback uses 256-byte buffer with 8KB size

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, 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...

EUVD-2026-33954

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, 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...

CVE-2026-45679

CVE-2026-45679 affects OpenTelemetry eBPF Instrumentation (OBI). Prior to version 0.9.0, OBI exports raw Redis error text as the span status message, causing Redis error replies to be exposed in telemetry backends. This can leak attacker-controlled or sensitive data (tokens, PII, etc.) into downs...

CVE-2026-45679

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, 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...

CVE-2026-45678 OpenTelemetry eBPF Instrumentation: Postgres BIND parsing can panic on malformed payloads

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, 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 th...

CVE-2026-45678 OpenTelemetry eBPF Instrumentation: Postgres BIND parsing can panic on malformed payloads

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, 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 th...

CVE-2026-45676

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, 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...

CVE-2026-45676 OpenTelemetry eBPF Instrumentation: Unsafe fastelf parsing allows malformed ELF to crash agent

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, 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...

CVE-2026-45676 OpenTelemetry eBPF Instrumentation: Unsafe fastelf parsing allows malformed ELF to crash agent

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, 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...

CVE-2026-45676

CVE-2026-45676 affects OpenTelemetry eBPF Instrumentation (OBI). Before version 0.9.0, OBI’s replacement ELF parser trusts section offsets, counts, and string offsets from the executable, allowing a crafted local ELF to trigger invalid dereferences or out-of-bounds slicing in the parser. The vuln...

CVE-2026-45682 OpenTelemetry eBPF Instrumentation: CappedConcurrentHashMap leaks keys after removals

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, the custom CappedConcurrentHashMap introduced for Java TLS state tracking never removes keys from its insertion-order queue when entries are deleted. In long-running...

CVE-2026-45682

OpenTelemetry eBPF Instrumentation CVE-2026-45682 describes a leak in CappedConcurrentHashMap used for Java TLS state tracking: when entries are deleted, keys are not removed from the insertion-order queue, allowing the queue to grow in long-running instrumented JVMs. The issue causes heap exhaus...