Low severity · published Jun 2, 2026
CVE-2026-45683
OpenTelemetry eBPF Instrumentation: Java TLS ioctl kprobe allows kernel memory disclosure
3.8
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
opentelemetry-ebpf-instrumentation · open-telemetry
< 0.9.0 · source: vendor
EI
Ebpf Instrumentation · Opentelemetry
before 0.9.0 · source: NVD
Affected product
OP
opentelemetry-ebpf-instrumentation
open-telemetry
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-45683
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-45683
Product
https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/releases/tag/v0.9.0
Exploit
https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/security/advisories/GHSA-fjq3-ffvr-vm46
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