How severe is CVE-2020-7611?

CVE-2020-7611 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-7611 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-7611?

CVE-2020-7611 affects Objectcomputing Micronaut. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-7611?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-7611 published?

CVE-2020-7611 was published on 2020-03-30 and last updated on 2026-06-17.

CVE-2020-7611

CVE-2020-7611 is a critical-severity vulnerability in Objectcomputing Micronaut with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-444.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-444
Affected product: Objectcomputing Micronaut
Published: 2020-03-30
Last modified: 2026-06-17

Description

All versions of io.micronaut:micronaut-http-client before 1.2.11 and all versions from 1.3.0 before 1.3.2 are vulnerable to HTTP Request Header Injection due to not validating request headers passed to the client.

Frequently asked questions

What is CVE-2020-7611?: All versions of io.micronaut:micronaut-http-client before 1.2.11 and all versions from 1.3.0 before 1.3.2 are vulnerable to HTTP Request Header Injection due to not validating request headers passed to the client.
How severe is CVE-2020-7611?: CVE-2020-7611 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-7611 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-7611?: CVE-2020-7611 affects Objectcomputing Micronaut. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-7611?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-7611 published?: CVE-2020-7611 was published on 2020-03-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:objectcomputing:micronaut:*:*:*:*:*:*:*:*

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