Vulnerability in go.opentelemetry.io/otel/schema/v1.1 (CVE-2026-45287)
Summary
Vulnerability in go.opentelemetry.io/otel/schema/v1.1 (CVE-2026-45287). Risk of unauthorized operations or information disclosure. Exploitable via ParseFile. Mitigation: upgrade to 0.0.17 or later.
Original description
The description as published by the source.
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.
Source: GitHub Security Advisories (Global) NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-45287 has been found in go.opentelemetry.io/otel/schema/v1.1.
Attackers can target a specific entry point like ParseFile over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: 5.5/10.
What to do: upgrade go.opentelemetry.io/otel/schema/v1.1 to 0.0.17 or later.
If unsure, ask your IT team or search "go.opentelemetry.io/otel/schema/v1.1 CVE-2026-45287" on the vendor's site.
CVE-2026-45287 (go.opentelemetry.io/otel/schema/v1.1) — CWE-772 / CVSS v3 5.5
Attack vector: local / no user interaction
Attack surface: ParseFile / Parse / os.Open / io.Reader
Patched: 0.0.17 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-772) exists in go.opentelemetry.io/otel/schema/v1.1. Attackers reach the vulnerable code path via ParseFile.
Check the vendor advisory for the affected versions of go.opentelemetry.io/otel/schema/v1.1. Attack surface: ParseFile / Parse / os.Open / io.Reader.
Severity: Medium (CVSS 5.5/10). Risk of unauthorized operations or information disclosure.
Update to 0.0.17.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'go.opentelemetry.io/otel/schema/v1.1' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'go.opentelemetry.io/otel/schema/v1.1' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
go.opentelemetry.io/otel/schema/v1.1を grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade go.opentelemetry.io/otel/schema/v1.1 to 0.0.17ステージング環境で 0.0.17 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2026-45287 golang-opentelemetry-otel
- Ubuntu UBUNTU-CVE-2026-45287 golang-opentelemetry-otel
References
- advisory github.com
- advisory nvd.nist.gov
- advisory github.com
- package github.com
- patch github.com
- patch github.com
- web github.com