Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
open-telemetry go.opentelemetry.io/otel/schema/v1.1 — OpenTelemetry-Go's Schema ParseFile leaks file descriptors on each parse
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV
L L P N N N N L 2.1 .0017 6.5 —
AFFECTED
Product Versions Fixed
go.opentelemetry.io/otel/schema/v1.1 < 0.0.17 – —
go.opentelemetry.io/otel/schema/v1.0 < 0.0.17 – —
TIMELINE
May 11 Reserved by GitHub_M
Jun 4 EXPLOIT PUBLISHED — CVE-2026-45287 (open-telemetry go.opentelemetry.io/otel/schema/v1.1). Public exploit reference added.
Jun 4 Published (CNA: GitHub_M)
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| May 11, 2026 | Reserved | Reserved by GitHub_M |
| June 4, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-45287 (open-telemetry go.opentelemetry.io/otel/schema/v1.1). Public exploit reference added. |
| June 4, 2026 | Published | Published (CNA: GitHub_M) |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| open-telemetry | go.opentelemetry.io/otel/schema/v1.1 | — | < 0.0.17 | — |
| open-telemetry | go.opentelemetry.io/otel/schema/v1.0 | — | < 0.0.17 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-45287 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.