CVE-2026-45287

Description

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.

How to fix CVE-2026-45287

To remediate CVE-2026-45287, upgrade the affected package to a fixed version below.

• —no fix listed
• —upgrade to 0.0.17 or later
• —upgrade to 0.0.17 or later

Is CVE-2026-45287 being exploited?

No exploitation signal available. Neither CISA KEV nor a current EPSS score has been published for CVE-2026-45287.

Affected packages (3)

• from 0
• from 0, < 0.0.17
• from 0, < 0.0.17

CVSS scores

References (6)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2026-45287
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2026-45287
• PATCHgithub.com/open-telemetry/opentelemetry-go
• WEBgithub.com/open-telemetry/opentelemetry-go/commit/e72a235518cb773137efd80336a179028bc34684