medium5.5
CVE-2026-45287
opentelemetry-go's Schema ParseFile leaks file descriptors on each parse
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | go.opentelemetry.io/otel/schema/v1.1 | <= 0.0.16 | 0.0.17 |
| go | go.opentelemetry.io/otel/schema/v1.0 | <= 0.0.16 | 0.0.17 |
| go | go.opentelemetry.io/otel/schema | < 0.0.17 | 0.0.17 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Opentelemetry | Telemetry Schema Files | before 0.0.17 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-995v-fvrw-c78m
- https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-995v-fvrw-c78m
- https://nvd.nist.gov/vuln/detail/CVE-2026-45287
- https://github.com/open-telemetry/opentelemetry-go/commit/e72a235518cb773137efd80336a179028bc34684
- https://github.com/open-telemetry/opentelemetry-go/commit/f12d198f161b61735d65705248715aa97021ba8d