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CVE-2020-7611

31
FAUCET Score

CVE-2020-7611 is a critical HTTP Request Header Injection vulnerability affecting Micronaut HTTP client versions prior to 1.2.11 and between 1.3.0 and 1.3.2. This flaw stems from insufficient validation of request headers, allowing attackers to inject arbitrary headers. With a CVSS score of 9.8 (Critical), it presents a severe risk due to its network-based attack vector, low complexity, and potential for high impact on confidentiality, integrity, and availability. While there is no evidence of active exploitation or publicly available exploit code in Metasploit or ExploitDB, the vulnerability has garnered significant community discussion, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.2.11CPE matchmatch criteria
cpe:2.3:a:objectcomputing:micronaut:*:*:*:*:*:*:*:*
>= 1.3.0, < 1.3.2CPE matchmatch criteria
cpe:2.3:a:objectcomputing:micronaut:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.80%
Probability of exploitation in next 30 days
EPSS Percentile
76.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0180 is in the 64th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 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)

github_advisorypatch availablevia nvd_reference
View patch
mavenpatch availablevia ghsa
Product: io.micronaut:micronaut-http-clientFixed in: 1.2.11
mavenpatch availablevia ghsa
Product: io.micronaut:micronaut-http-clientFixed in: 1.3.2

Vendor Advisories (1)

mavenGHSA-694p-xrhg-x3wmcritical

Micronaut's HTTP client is vulnerable to HTTP Request Header Injection

Mar 30, 2020

References

github.com / micronaut-projects/micronaut-core/commit/9d1eff5c8df1d6cda1fe00ef046729b2a6abe7f1
Patch
github.com / micronaut-projects/micronaut-core/security/advisories/GHSA-694p-xrhg-x3wm
ExploitPatchThird Party Advisory
snyk.io / vuln/SNYK-JAVA-IOMICRONAUT-561342
ExploitThird Party Advisory