CVE-2026-45684

medium

Published 2026-05-18 · Modified 2026-06-03

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

5.3

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS v4 NEW

—

not yet in upstream

VIR risk

5.3

Description

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 iov_iter.count as the copy length. When log injection is enabled, a crafted multi-segment writev call can make OBI read and overwrite memory beyond the first segment. This issue has been patched in version 0.9.0.

Predictions

Exploit likelihood

53%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

Package impact

Ecosystem	Package	Vulnerable	Fixed
Go	go.opentelemetry.io/obi	`>=0.7.0,<0.9.0`	`0.9.0`
GO	go.opentelemetry.io/obi	`>= 0.7.0, < 0.9.0`	`0.9.0`

Application impact

Vendor	Product	Versions	Fixed
opentelemetry	ebpf_instrumentation	`{"startIncluding":"0.7.0","endExcluding":"0.9.0"}`	`0.9.0`

References

CWEs

CWE-126 CWE-787

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.