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CVE-2023-41317— Unnamed "Subscription" operation results in Denial-of-Service in apollographql/router

Quick assessment

Affected
apollographql router
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apollo Router是一个用 Rust 编写的可配置的高性能图形路由器。 Apollo Router 存在安全漏洞，该漏洞源于启用GraphQL订阅时，在某些情况下会导致Router发生紧急情况并终止。

CVSS 7.5 · High EPSS 0.80% · P55

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2023-41317

Vulnerability Information
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Vulnerability Title
Unnamed "Subscription" operation results in Denial-of-Service in apollographql/router
Source: CVE Program / CVE List V5
Vulnerability Description
The Apollo Router is a configurable, high-performance graph router written in Rust to run a federated supergraph that uses Apollo Federation 2. Affected versions are subject to a Denial-of-Service (DoS) type vulnerability which causes the Router to panic and terminate when GraphQL Subscriptions are enabled. It can be triggered when **all of the following conditions are met**: 1. Running Apollo Router v1.28.0, v1.28.1 or v1.29.0 ("impacted versions"); **and** 2. The Supergraph schema provided to the Router (either via Apollo Uplink or explicitly via other configuration) **has a `subscription` type** with root-fields defined; **and** 3. The YAML configuration provided to the Router **has subscriptions enabled** (they are _disabled_ by default), either by setting `enabled: true` _or_ by setting a valid `mode` within the `subscriptions` object (as seen in [subscriptions' documentation](https://www.apollographql.com/docs/router/executing-operations/subscription-support/#router-setup)); **and** 4. An [anonymous](https://spec.graphql.org/draft/#sec-Anonymous-Operation-Definitions) (i.e., un-named) `subscription` operation (e.g., `subscription { ... }`) is received by the Router If **all four** of these criteria are met, the impacted versions will panic and terminate. There is no data-privacy risk or sensitive-information exposure aspect to this vulnerability. This is fixed in Apollo Router v1.29.1. Users are advised to upgrade. Updating to v1.29.1 should be a clear and simple upgrade path for those running impacted versions. However, if Subscriptions are **not** necessary for your Graph – but are enabled via configuration — then disabling subscriptions is another option to mitigate the risk.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对异常条件的处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Apollo Router 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apollo Router是一个用 Rust 编写的可配置的高性能图形路由器。 Apollo Router 存在安全漏洞，该漏洞源于启用GraphQL订阅时，在某些情况下会导致Router发生紧急情况并终止。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
apollographql router >= 1.28.0, < 1.29.1 -

II. Public POCs for CVE-2023-41317

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 6073 chars
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III. Intelligence Information for CVE-2023-41317

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Patches & Fixes for CVE-2023-41317 (1)

Vendor Advisories for CVE-2023-41317 (1)

Other References for CVE-2023-41317 (1)

IV. Related Vulnerabilities

Same product: router
Same vendor: apollographql
Same weakness: CWE-755

V. Comments for CVE-2023-41317

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