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Vulnerability record · CVE-2023-34036 · published 17 July 2023

CVE-2023-34036: Vmware spring hateoas vulnerability

Vmware · Spring Hateoas

Reactive web applications that use Spring HATEOAS to produce hypermedia-based responses might be exposed to malicious forwarded headers if they are not behind a trusted proxy that ensures correctness of such headers, or if they don't have anything else in place to handle (and possibly discard) forwarded headers either in WebFlux or at the level of the underlying HTTP server. For the application to be affected, it needs to satisfy the following requirements: * It needs to use the reactive web stack (Spring WebFlux) and Spring HATEOAS to create links in hypermedia-based responses. * The application infrastructure does not guard against clients submitting (X-)Forwarded… headers.

5.3 CVSS 3.1 Medium EPSS 0.48% · top 61.4% CWE-644 · CWE-644CWE-116 · CWE-116
5.3CVSS 3.1 base score
0.48%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Reactive web applications that use Spring HATEOAS to produce hypermedia-based responses might be exposed to malicious forwarded headers if they are not behind a trusted proxy that ensures correctness of such headers, or if they don't have anything else in place to handle (and possibly discard) forwarded headers either in WebFlux or at the level of the underlying HTTP server. For the application to be affected, it needs to satisfy the following requirements: * It needs to use the reactive web stack (Spring WebFlux) and Spring HATEOAS to create links in hypermedia-based responses. * The application infrastructure does not guard against clients submitting (X-)Forwarded… headers.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://spring.io/security/cve-2023-34036 MitigationVendor Advisory
https://spring.io/security/cve-2023-34036 MitigationVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2026-41007Vmware spring hateoas allocation without limits vulnerabilitySpring HATEOAS maintains an unbounded static cache of StringLinkRelation instances keyed on attacker-supplied strings. Affected versions: Spring HATE…EPSS 0.46%7.5CVE-2026-41006Vmware spring hateoas improper access control vulnerabilitySpring HATEOAS's internal PropertyUtils.createObjectFromProperties method, used by the Collection+JSON and UBER media type deserializers, performs be…EPSS 0.43%

Source: NIST National Vulnerability Database (record CVE-2023-34036), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.