CVE-2026-45287
OpenTelemetry-Go's Schema ParseFile leaks file descriptors on each parse
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.
INFO
Published Date :
June 4, 2026, 4:16 p.m.
Last Modified :
July 22, 2026, 8:10 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-45287
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | LOW | [email protected] |
Solution
- Update OpenTelemetry-Go to version 0.0.17.
- Ensure schema files are closed after parsing.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-45287.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-45287 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-45287
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-45287 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-45287 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Jul. 22, 2026
Action Type Old Value New Value Added Translation Title: OpenTelemetry, Description: OpenTelemetry-Go es la implementación en Go de OpenTelemetry. Antes de la versión 0.0.17, 'go.opentelemetry.io/otel/schema/v1.0' y 'go.opentelemetry.io/otel/schema/v1.1' filtran un descriptor de archivo en cada llamada exitosa a 'ParseFile'. 'ParseFile' abre el archivo de esquema y lo pasa a 'Parse' sin cerrarlo; el análisis repetido en un proceso de larga duración puede agotar el límite de descriptores de archivo del proceso y causar denegación de servicio. La explotación depende de que una aplicación consumidora exponga el análisis repetido del esquema a una ruta controlada por un atacante. La versión 0.0.17 contiene un parche para el problema. -
Initial Analysis by [email protected]
Jun. 18, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CPE Configuration OR *cpe:2.3:a:opentelemetry:telemetry_schema_files:*:*:*:*:*:go:*:* versions up to (excluding) 0.0.17 Added Reference Type GitHub, Inc.: https://github.com/open-telemetry/opentelemetry-go/commit/e72a235518cb773137efd80336a179028bc34684 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/open-telemetry/opentelemetry-go/commit/f12d198f161b61735d65705248715aa97021ba8d Types: Patch Added Reference Type GitHub, Inc.: https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-995v-fvrw-c78m Types: Exploit, Vendor Advisory Added Reference Type CISA-ADP: https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-995v-fvrw-c78m Types: Exploit, Vendor Advisory -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'open-telemetry', 'product': 'go.opentelemetry.io/otel/schema/v1.1', 'versions': [{'status': 'affected', 'version': '< 0.0.17'}]}, {'vendor': 'open-telemetry', 'product': 'go.opentelemetry.io/otel/schema/v1.0', 'versions': [{'status': 'affected', 'version': '< 0.0.17'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-45287', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-08T18:27:31.389905Z'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 08, 2026
Action Type Old Value New Value Added Reference https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-995v-fvrw-c78m -
New CVE Received by [email protected]
Jun. 04, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 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 Added CWE CWE-775 Added CWE CWE-772 Added Reference https://github.com/open-telemetry/opentelemetry-go/commit/e72a235518cb773137efd80336a179028bc34684 Added Reference https://github.com/open-telemetry/opentelemetry-go/commit/f12d198f161b61735d65705248715aa97021ba8d Added Reference https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-995v-fvrw-c78m