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CVE-2024-43783

23
FAUCET Score

CVE-2024-43783 is a denial-of-service vulnerability affecting Apollo Router versions 1.21.0 to 1.52.0 when configured with External Coprocessing sending request bodies, or versions 1.7.0 to 1.52.0 with specific Native Rust Plugins. The vulnerability allows the Router to load entire HTTP request bodies into memory, potentially leading to an out-of-memory (OOM) termination if a large request is sent. Rated 7.5 HIGH (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H), it can be exploited remotely with low attack complexity, resulting in high availability impact. There is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.7.0, < 1.52.1CPE matchmatch criteria
cpe:2.3:a:apollographql:apollo-router:*:*:*:*:*:rust:*:*
>= 1.7.0, < 1.52.1CPE matchmatch criteria
cpe:2.3:a:apollographql:apollo_helms-charts_router:*:*:*:*:*:*:*:*
>= 1.7.0, < 1.52.1CPE 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
0.86%
Probability of exploitation in next 30 days
EPSS Percentile
54.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0086 is in the 30th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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: 1.52.1

Vendor Advisories (1)

rustGHSA-x6xq-whh3-gg32high

Apollo Router Coprocessors may cause Denial-of-Service when handling request bodies

Aug 27, 2024

References

github.com / apollographql/router/commit/7a9c020608a62dcaa306b72ed0f6980f15923b14
Patch
github.com / apollographql/router/releases/tag/v1.52.1
Release Notes
github.com / apollographql/router/security/advisories/GHSA-x6xq-whh3-gg32
ExploitVendor Advisory
apollographql.com / docs/router/configuration/overview
Product
apollographql.com / docs/router/customizations/coprocessor
Technical Description
apollographql.com / docs/router/customizations/native
Technical Description