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CVE-2026-45287

OpenTelemetry-Go's Schema ParseFile leaks file descriptors on each parse

Published: Jun 4, 2026Updated: Jun 18, 2026 Sources: CVE List NVDCWE-772
NVD MITRE
5.5CVSSMEDIUM
EPSS Score
0.2%
Top 92.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-772CWE-775

Affected Products

go.opentelemetry.io/otel/schema/v1.1open-telemetry
Library
OSS Libraries / generic-library
go.opentelemetry.io/otel/schema/v1.0open-telemetry
Library
OSS Libraries / generic-library
telemetry schema filesopentelemetry
Mixed
OSS Libraries / generic-library
open-telemetryoss-projectOSS Librariesaka opentelemetry
opentelemetryoss-projectOSS Librariesaka opentelemetry-collector

Exploitability

Official Patch Available

References

https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-995v-fvrw-c78m
github.com
https://github.com/open-telemetry/opentelemetry-go/commit/e72a235518cb773137efd80336a179028bc34684
github.com
https://github.com/open-telemetry/opentelemetry-go/commit/f12d198f161b61735d65705248715aa97021ba8d
github.com

Timeline

Published
Jun 4, 2026
Last Updated
Jun 18, 2026

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