GHSA-rcjv-mgp8-qvmr · 深刻度： high · エコシステム： go — OpenTelemetry-Go Contrib vulnerable to denial of service in otelhttp due to unbound cardinality metrics
OpenTelemetry-Go Contrib is a collection of third-party packages for OpenTelemetry-Go. A handler wrapper out of the box adds labels `http.user_agent` and `http.method` that have unbound cardinality. It leads to the server's potential memory exhaustion when many malicious requests are sent to it. HTTP header User-Agent or HTTP method for requests can be easily set by an attacker to be random and long. The library internally uses `httpconv.ServerRequest` that records every value for HTTP `method` and `User-Agent`. In order to be affected, a program has to use the `otelhttp.NewHandler` wrapper and not filter any unknown HTTP methods or User agents on the level of CDN, LB, previous middleware, etc. Version 0.44.0 fixed this issue when the values collected for attribute `http.request.method` were changed to be restricted to a set of well-known values and other high cardinality attributes were removed. As a workaround to stop being affected, `otelhttp.WithFilter()` can be used, but it requires manual careful configuration to not log certain requests entirely. For convenience and safe usage of this library, it should by default mark with the label `unknown` non-standard HTTP methods and User agents to show that such requests were made but do not increase cardinality. In case someone wants to stay with the current behavior, library API should allow to enable it.
総合評価: CVE-2023-45142 は中リスク（53.7/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 1.16%、78 パーセンタイル） 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置（高いほど相対的に深刻）を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ（新 − 旧） |
|---|---|---|---|---|
| 1 | 2025-11-21 | 4.77% | 1.16% | -3.61% |
| 2 | 2025-11-18 | 1.16% | 4.77% | +3.61% |
| 3 | 2025-10-30 | — | 1.16% | — |
EPSS の全履歴 （全 15 件）
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
GHSA-rcjv-mgp8-qvmr · 深刻度： high · エコシステム： go — OpenTelemetry-Go Contrib vulnerable to denial of service in otelhttp due to unbound cardinality metrics
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2023-45142: 1 source package rows (k3s); 4 state rows across 4 repos (3.20-community, 3.21-community, 3.22-community, edge-community); fixed 4, open 0. | https://security.alpinelinux.org/vuln/CVE-2023-45142 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2023-45142 |
suse
|
high | — | https://www.suse.com/security/cve/CVE-2023-45142/ |
ubuntu
|
medium | CVE-2023-45142 medium priority: Ubuntu including 1 source packages (golang-opentelemetry-contrib), 8 status rows across 8 suites (focal, jammy, mantic, noble, oracular, plucky, questing, upstream): DNE 4, ignored 2, needs-triage 2. | https://ubuntu.com/security/CVE-2023-45142 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| opentelemetry | opentelemetry | < 0.44.0 | cpe:2.3:a:opentelemetry:opentelemetry:*:*:*:*:*:go:*:* |