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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2023-41317

19
FAUCET Score

CVE-2023-41317 is a Denial-of-Service (DoS) vulnerability affecting Apollo Router versions 1.28.0, 1.28.1, and 1.29.0. It causes the router to crash and terminate when specific conditions related to GraphQL Subscriptions and anonymous subscription operations are met. The vulnerability has a CVSS score of 5.9 (Medium) due to its network attack vector and high impact on availability, though it requires high attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.28.0, < 1.29.1CPE matchmatch criteria
cpe:2.3:a:apollographql:apollo_router:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.65%
Probability of exploitation in next 30 days
EPSS Percentile
47.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0065 is in the 9th percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
rustpatch availablevia ghsa
Product: apollo-routerFixed in: 1.29.1

Vendor Advisories (1)

rustGHSA-w8vq-3hf9-xppxmedium

Apollo Router Unnamed "Subscription" operation results in Denial-of-Service

Sep 7, 2023

References

github.com / apollographql/router/commit/b295c103dd86c57c848397d32e8094edfa8502aa
Patch
github.com / apollographql/router/releases/tag/v1.29.1
Release Notes
github.com / apollographql/router/security/advisories/GHSA-w8vq-3hf9-xppx
Vendor Advisory