CVE-2026-45287 LOW

CVE-2026-45287: OpenTelemetry-Go's Schema ParseFile leaks file descriptors on each parse

Vendor Open-Telemetry
Product go.opentelemetry.io/otel/schema/v1.1
Weakness CWE-772
Published June 4, 2026
Last update June 8, 2026

CVSS base score

2.1/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

What the vulnerability does

01Description

OpenTelemetry-Go is the Go implementation of OpenTelemetry. Prior to version 0.0.17, `go.opentelemetry.io/otel/schema/v1.0` and `go.opentelemetry.io/otel/schema/v1.1` leaks one file descriptor on each successful `ParseFile` call. `ParseFile` opens the schema file and passes it to `Parse` without closing it; repeated parsing in a long-running process can exhaust the process file descriptor limit and cause denial of service. Exploitation depends on a consuming application exposing repeated schema parsing to an attacker-controlled path. Version 0.0.17 contains a patch for the issue.

Key dates

02Disclosure timeline

June 4, 2026 CVE published
June 8, 2026 Record updated