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VulnerabilityPublished

CVE-2026-45683: open-telemetry opentelemetry-ebpf-instrumentation · Buffer Under-read

Affects open-telemetry opentelemetry-ebpf-instrumentationSource CVE Database V5

0
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Not known to be exploited · CVSS 3.8 Low : upgrade to 0.9.0 when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
3.8Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 0.9.0
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade opentelemetry-ebpf-instrumentation and open-telemetry/opentelemetry-ebpf-instrumentation to 0.9.0.

Affected software

ProductAffectedFixed in
open-telemetryopentelemetry-ebpf-instrumentationAffected
  • <0.9.0
Fixed in
  • 0.9.0
GitHubopen-telemetry/opentelemetry-ebpf-instrumentationpkg:github/open-telemetry/opentelemetry-ebpf-instrumentationOther threatsAffected
  • <0.9.0
Fixed in
  • 0.9.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade to OpenTelemetry eBPF Instrumentation version 0.9.0 or later, where this vulnerability is patched. Since the vendor advisory confirms the fix in version 0.9.0, applying this official update fully mitigates the issue. No additional mitigation steps are indicated.

Description

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 bpf_probe_read instead of bpf_probe_read_user. An instrumented local process can therefore point OBI at kernel memory and cause that memory to be copied into telemetry. This issue has been patched in version 0.9.0.

References

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