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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-45287

26
FAUCET Score

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.

First published: Jun 4, 2026Last modified: Jun 4, 2026

Impacted Technologies

VendorProductVersion(s)CPE
< 0.0.17CPE matchmatch criteria
cpe:2.3:a:opentelemetry:telemetry_schema_files:*:*:*:*:*:go:*:*

CVSS Data

CVSS version used by this source: 4.0

2.1LOW

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.17%
Probability of exploitation in next 30 days
EPSS Percentile
6.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0017 is in the 37th percentile among its peer group of 15,938 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

gopatch availablevia ghsa
Product: go.opentelemetry.io/otel/schema/v1.1Fixed in: 0.0.17
gopatch availablevia ghsa
Product: go.opentelemetry.io/otel/schema/v1.0Fixed in: 0.0.17
gopatch availablevia ghsa
Product: go.opentelemetry.io/otel/schemaFixed in: 0.0.17

Vendor Advisories (1)

goGHSA-995v-fvrw-c78mlow

opentelemetry-go's Schema ParseFile leaks file descriptors on each parse

May 28, 2026

References

github.com / open-telemetry/opentelemetry-go/commit/e72a235518cb773137efd80336a179028bc34684
Patch
github.com / open-telemetry/opentelemetry-go/commit/f12d198f161b61735d65705248715aa97021ba8d
Patch
github.com / open-telemetry/opentelemetry-go/security/advisories/GHSA-995v-fvrw-c78m
ExploitVendor Advisory