TI-2026-33427 Aliases CVE-2026-45685 GHSA-j8p6-96vp-f3r9

OpenTelemetry eBPF Instrumentation: MongoDB parser panics on malformed wire messages

HIGH 72CWE-20Published 2026-06-02 · Updated 2026-06-02

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-248.

Summary

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. From version 0.1.0 to before version 0.9.0, 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, so a single crafted message can terminate telemetry collection for the affected process or node. This issue has been patched in version 0.9.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00463 40th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed opentelemetry-ebpf-instrumentation (open-telemetry): 0.9.0go.opentelemetry.io/obi (Go): 0.9.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
open-telemetry	opentelemetry-ebpf-instrumentation	0.1.0 to before 0.9.0	0.9.0	Patch available	CNA
—	go.opentelemetry.io/obi (Go)	before 0.9.0	0.9.0	Patch available	GHSA-j8p6-96vp-f3r9

opentelemetry-ebpf-instrumentation Vendoropen-telemetry Affected 0.1.0 to before 0.9.0 Fixed in 0.9.0 Patch available CNA
go.opentelemetry.io/obi (Go) Vendor— Affected before 0.9.0 Fixed in 0.9.0 Patch available GHSA-j8p6-96vp-f3r9

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:opentelemetry:ebpf_instrumentation::::::go::*	0.1.0 to before 0.9.0	Vulnerable	open-telemetry

cpe:2.3:a:opentelemetry:ebpf_instrumentation:*:*:*:*:*:go:*:* Versions 0.1.0 to before 0.9.0 Vulnerable ·open-telemetry

Remediation

Fix · CNA opentelemetry-ebpf-instrumentation (open-telemetry) Fixed in 0.9.0
Fix · GHSA-j8p6-96vp-f3r9 go.opentelemetry.io/obi (Go) Fixed in 0.9.0 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-45685
2026-10-03 Alias added: GHSA-j8p6-96vp-f3r9

References

Exploit 1

https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-j8p6-96vp-f3r9

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-45685

Other 2

TI-2026-33428 OpenTelemetry eBPF Instrumentation: Memcached payload length overflow can crash OBI CVSS 3.1HIGH 7.5
TI-2026-33420 OpenTelemetry eBPF Instrumentation: Postgres BIND parsing can panic on malformed payloads CVSS 3.1HIGH 7.5
TI-2026-33421 OpenTelemetry eBPF Instrumentation: Redis error text is exported in span status messages CVSS 3.1MEDIUM 6.5
TI-2026-33422 OpenTelemetry eBPF Instrumentation: Unbounded BPF internal metrics replay can exhaust CPU CVSS 3.1HIGH 7.5
TI-2026-33423 OpenTelemetry eBPF Instrumentation: CPU-mismatch fallback uses 256-byte buffer with 8KB size CVSS 3.1MEDIUM 5.9
TI-2026-33424 OpenTelemetry eBPF Instrumentation: CappedConcurrentHashMap leaks keys after removals CVSS 3.1MEDIUM 5.5

See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences