open-telemetry opentelemetry-ebpf-instrumentation up to 0.8.x integer overflow

Summaryinfo

A vulnerability classified as problematic has been found in open-telemetry opentelemetry-ebpf-instrumentation up to 0.8.x. This vulnerability affects unknown code. This manipulation causes integer overflow. This vulnerability is registered as CVE-2026-45686. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in open-telemetry opentelemetry-ebpf-instrumentation up to 0.8.x. Affected by this vulnerability is some unknown processing. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect availability. The summary by CVE is:

OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. From version 0.7.0 to before version 0.9.0, a remotely reachable integer overflow in OBI's memcached text protocol parser can crash the OBI process and cause denial of service. When parsing memcached storage commands such as set, add, replace, append, prepend, or cas, OBI accepts extremely large values and adds the payload delimiter length without checking for overflow. A crafted request with set to math.MaxInt or math.MaxInt-1 causes the computed payload length to wrap negative and triggers a runtime panic in LargeBufferReader.Peek. This issue has been patched in version 0.9.0.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-45686 since 05/13/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 326329 (SUSE SLED15 / SLES15 Security Update : alloy (SUSE-SU-2026:2824-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 0.9.0 eliminates this vulnerability. The upgrade is hosted for download at github.com.

The vulnerability is also documented in the vulnerability database at Tenable (326329). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• open-telemetry

Name

• opentelemetry-ebpf-instrumentation

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8

Website

• Product: https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

Discussion