CVE-2023-34047Network attack vector

Cross-session context disclosure via reused DataLoader options

Published Sep 20, 2023 · Updated Sep 24, 2024

Information disclosure in Spring for GraphQL 1.1.0 through 1.1.5 and 1.2.0 through 1.2.2 allows remote attackers to read another session's context. DefaultBatchLoaderRegistry reuses a caller-supplied DataLoaderOptions object while assigning request context, allowing overlapping loaders to resolve the wrong GraphQLContext. The application must supply DataLoaderOptions when registering batch loaders, and exploitation requires user interaction and request timing; exposed values can include security identity data.

CVSS severity3.1
Low
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Spring for GraphQL 1.1.0 through 1.1.5 and 1.2.0 through 1.2.2 allows remote attackers to read another session's context. DefaultBatchLoaderRegistry reuses a caller-supplied DataLoaderOptions object while assigning request context, allowing overlapping loaders to resolve the wrong GraphQLContext. The application must supply DataLoaderOptions when registering batch loaders, and exploitation requires user interaction and request timing; exposed values can include security identity data.

The record

CVE
CVE-2023-34047
Published
Sep 20, 2023
Updated
Sep 24, 2024
Vendor
Spring
Product
Spring for GraphQL
Classifications
Unavailable
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 20, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.1.0 <1.1.6
  2. Affected versionversion=1.2.0 <1.2.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Spring · Spring for GraphQLversion=1.1.0 <1.1.6; version=1.2.0 <1.2.3

Published CVSS scores

3.1VMwareCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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