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CVE-2024-23639

21
FAUCET Score

CVE-2024-23639 affects the Micronaut Framework, where unsecured management endpoints can be exploited via drive-by localhost attacks, particularly impacting development environments. This vulnerability, rated HIGH with a CVSS score of 7.8, allows a malicious website to make "simple" HTTP requests to localhost, potentially leading to high confidentiality, integrity, and availability impacts without user interaction. While not actively exploited or having public exploit code, and with minimal community discussion, the risk is primarily for developers who enable these endpoints without security. Users are advised to upgrade to version 3.8.3 or later to mitigate this issue.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.8.3CPE matchmatch criteria
cpe:2.3:a:objectcomputing:micronaut:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.1MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.5
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
17.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 53rd percentile among its peer group of 17,061 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

mavenpatch availablevia ghsa
Product: io.micronaut:micronaut-http-serverFixed in: 3.8.3
mavenpatch availablevia ghsa
Product: io.micronaut:micronaut-http-server-nettyFixed in: 3.8.3
mavenpatch availablevia ghsa
Product: io.micronaut:micronaut-http-server-tckFixed in: 3.8.3

Vendor Advisories (1)

mavenGHSA-583g-g682-crxfmedium

Micronaut management endpoints vulnerable to drive-by localhost attack

Feb 9, 2024

References

developer.mozilla.org / en-US/docs/Web/HTTP/CORS
Not Applicable
github.com / micronaut-projects/micronaut-core/security/advisories/GHSA-583g-g682-crxf
Third Party Advisory