CVE-2024-23639
micronaut-core management endpoints vulnerable to drive-by localhost attack
Micronaut Framework is a modern, JVM-based, full stack Java framework designed for building modular, easily testable JVM applications with support for Java, Kotlin and the Groovy language. Enabled but unsecured management endpoints are susceptible to drive-by localhost attacks. While not typical of a production application, these attacks may have more impact on a development environment where such endpoints may be flipped on without much thought. A malicious/compromised website can make HTTP requests to localhost. Normally, such requests would trigger a CORS preflight check which would prevent the request; however, some requests are "simple" and do not require a preflight check. These endpoints, if enabled and not secured, are vulnerable to being triggered. Production environments typically disable unused endpoints and secure/restrict access to needed endpoints. A more likely victim is the developer in their local development host, who has enabled endpoints without security for the sake of easing development. This issue has been addressed in version 3.8.3. Users are advised to upgrade.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
5.1
micronaut-core management endpoints vulnerable to drive-by localhost attack
Micronaut Framework is a modern, JVM-based, full stack Java framework designed for building modular, easily testable JVM applications with support for Java, Kotlin and the Groovy language. Enabled but unsecured management endpoints are susceptible to drive-by localhost attacks. While not typical of a production application, these attacks may have more impact on a development environment where such endpoints may be flipped on without much thought. A malicious/compromised website can make HTTP requests to localhost. Normally, such requests would trigger a CORS preflight check which would prevent the request; however, some requests are "simple" and do not require a preflight check. These endpoints, if enabled and not secured, are vulnerable to being triggered. Production environments typically disable unused endpoints and secure/restrict access to needed endpoints. A more likely victim is the developer in their local development host, who has enabled endpoints without security for the sake of easing development. This issue has been addressed in version 3.8.3. Users are advised to upgrade.
- Record
CVE-2024-23639- CVSS 3.1
- 5.1 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L - Weakness
- CWE-15, CWE-664, CWE-610
- Updated
- 2026-11-02
EUVDEUVD-2024-0520
5.1
Micronaut Framework is a modern, JVM-based, full stack Java framework designed for building modular, easily testable JVM applications with support for Java, Kotlin and the Groovy language. Enabled but unsecured management endpoints are susceptible to drive-by localhost attacks. While not typical of a production application, these attacks may have more impact on a development environment where such endpoints may be flipped on without much thought. A malicious/compromised website can make HTTP requests to localhost. Normally, such requests would trigger a CORS preflight check which would prevent the request; however, some requests are "simple" and do not require a preflight check. These endpoints, if enabled and not secured, are vulnerable to being triggered. Production environments typically disable unused endpoints and secure/restrict access to needed endpoints. A more likely victim is the developer in their local development host, who has enabled endpoints without security for the sake of easing development. This issue has been addressed in version 3.8.3. Users are advised to upgrade.
- Record
EUVD-2024-0520- CVSS 3.1
- 5.1 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-583g-g682-crxf
5.1
Micronaut management endpoints vulnerable to drive-by localhost attack
Summary
Enabled but unsecured management endpoints are susceptible to drive-by localhost attacks. While not typical of a production application, these attacks may have more impact on a development environment where such endpoints may be flipped on without much thought.
Details
A malicious/compromised website can make HTTP requests to localhost. Normally, such requests would trigger a CORS preflight check which would prevent the request; however, some requests are "simple" and do not require a preflight check. These endpoints, if enabled and not secured, are vulnerable to being triggered.
Impact
Production environments typically disable unused endpoints and secure/restrict access to needed endpoints. A more likely victim is the developer in their local development host, who has enabled endpoints without security for the sake of easing development.
- Record
GHSA-583g-g682-crxf- CVSS 3.1
- 5.1 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L - Weakness
- CWE-15, CWE-610, CWE-664
- Updated
- 2026-11-02
NVD
5.1
Micronaut Framework is a modern, JVM-based, full stack Java framework designed for building modular, easily testable JVM applications with support for Java, Kotlin and the Groovy language. Enabled but unsecured management endpoints are susceptible to drive-by localhost attacks. While not typical of a production application, these attacks may have more impact on a development environment where such endpoints may be flipped on without much thought. A malicious/compromised website can make HTTP requests to localhost. Normally, such requests would trigger a CORS preflight check which would prevent the request; however, some requests are "simple" and do not require a preflight check. These endpoints, if enabled and not secured, are vulnerable to being triggered. Production environments typically disable unused endpoints and secure/restrict access to needed endpoints. A more likely victim is the developer in their local development host, who has enabled endpoints without security for the sake of easing development. This issue has been addressed in version 3.8.3. Users are advised to upgrade.
- Record
CVE-2024-23639- CVSS 3.1
- 5.1 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L - CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-15, CWE-610, CWE-664
- Updated
- 2026-11-02
OSV
5.1
micronaut-core management endpoints vulnerable to drive-by localhost attack
Micronaut Framework is a modern, JVM-based, full stack Java framework designed for building modular, easily testable JVM applications with support for Java, Kotlin and the Groovy language. Enabled but unsecured management endpoints are susceptible to drive-by localhost attacks. While not typical of a production application, these attacks may have more impact on a development environment where such endpoints may be flipped on without much thought. A malicious/compromised website can make HTTP requests to localhost. Normally, such requests would trigger a CORS preflight check which would prevent the request; however, some requests are "simple" and do not require a preflight check. These endpoints, if enabled and not secured, are vulnerable to being triggered. Production environments typically disable unused endpoints and secure/restrict access to needed endpoints. A more likely victim is the developer in their local development host, who has enabled endpoints without security for the sake of easing development. This issue has been addressed in version 3.8.3. Users are advised to upgrade.
- Record
CVE-2024-23639- CVSS 3.1
- 5.1 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L - Weakness
- CWE-15, CWE-610, CWE-664
- Updated
- 2026-11-02
OSVGHSA-583g-g682-crxf
5.1
Micronaut management endpoints vulnerable to drive-by localhost attack
Summary
Enabled but unsecured management endpoints are susceptible to drive-by localhost attacks. While not typical of a production application, these attacks may have more impact on a development environment where such endpoints may be flipped on without much thought.
Details
A malicious/compromised website can make HTTP requests to localhost. Normally, such requests would trigger a CORS preflight check which would prevent the request; however, some requests are "simple" and do not require a preflight check. These endpoints, if enabled and not secured, are vulnerable to being triggered.
Impact
Production environments typically disable unused endpoints and secure/restrict access to needed endpoints. A more likely victim is the developer in their local development host, who has enabled endpoints without security for the sake of easing development.
- Record
GHSA-583g-g682-crxf- CVSS 3.1
- 5.1 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L - Weakness
- CWE-15, CWE-610, CWE-664
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
io.micronaut:micronaut-http-serverMaven |
before 3.8.3 | 3.8.3 |
io.micronaut:micronaut-http-server-nettyMaven |
before 3.8.3 | 3.8.3 |
io.micronaut:micronaut-http-server-tckMaven |
before 3.8.3 | 3.8.3 |
io.micronaut:micronaut-http-serverMaven |
before 3.8.3, plus listed versions 1.0.01.0.0.RC31.0.11.0.21.0.3 Show 45 moreShow less1.0.41.0.51.1.01.1.0.M11.1.0.M21.1.0.RC11.1.0.RC21.1.11.1.21.1.31.1.41.2.01.2.0.RC11.2.0.RC21.2.11.2.101.2.111.2.21.2.31.2.41.2.51.2.61.2.71.2.81.2.91.3.01.3.0.M11.3.0.M21.3.0.RC11.3.11.3.21.3.31.3.41.3.51.3.61.3.72.0.02.0.0.M12.0.0.M22.0.0.M32.0.0.RC12.0.0.RC22.0.12.0.22.0.3 |
3.8.3 |
io.micronaut:micronaut-http-server-nettyMaven |
before 3.8.3, plus listed versions 1.0.01.0.0.RC31.0.11.0.21.0.3 Show 45 moreShow less1.0.41.0.51.1.01.1.0.M11.1.0.M21.1.0.RC11.1.0.RC21.1.11.1.21.1.31.1.41.2.01.2.0.RC11.2.0.RC21.2.11.2.101.2.111.2.21.2.31.2.41.2.51.2.61.2.71.2.81.2.91.3.01.3.0.M11.3.0.M21.3.0.RC11.3.11.3.21.3.31.3.41.3.51.3.61.3.72.0.02.0.0.M12.0.0.M22.0.0.M32.0.0.RC12.0.0.RC22.0.12.0.22.0.3 |
3.8.3 |
io.micronaut:micronaut-http-server-tckMaven |
before 3.8.3, plus listed versions 3.8.03.8.13.8.2 |
3.8.3 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-23639 is a medium vulnerability (CVSS 5.1) in Micronaut-projects Micronaut-core, published February 9, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.26%, the 17th percentile. Fixed in io.micronaut:micronaut-http-server 3.8.3.
References
github.com/micronaut-projects/micronaut-core/security/advisories/GHSA-583g-g682-crxf
developer.mozilla.org/en-US/docs/Web/HTTP/CORS
nvd.nist.gov/vuln/detail/CVE-2024-23639
github.com/micronaut-projects/micronaut-core/pull/8642
github.com/micronaut-projects/micronaut-core/commit/01adb21e57137caaf7004313d2055c5a78b1f47b
github.com/advisories/GHSA-583g-g682-crxf
github.com/CVEProject/cvelistV5/tree/main/cves/2024/23xxx/CVE-2024-23639.json
github.com/micronaut-projects/micronaut-core
Left out here: 186 versions. The JSON record has them.