How severe is CVE-2020-7671?

CVE-2020-7671 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2020-7671 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-7671?

CVE-2020-7671 affects Goliath Project Goliath. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-7671?

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

When was CVE-2020-7671 published?

CVE-2020-7671 was published on 2020-06-10 and last updated on 2026-06-17.

CVE-2020-7671

CVE-2020-7671 is a high-severity vulnerability in Goliath Project Goliath with a CVSS 3.x base score of 7.5. 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: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-444
Affected product: Goliath Project Goliath
Published: 2020-06-10
Last modified: 2026-06-17

Description

goliath through 1.0.6 allows request smuggling attacks where goliath is used as a backend and a frontend proxy also being vulnerable. It is possible to conduct HTTP request smuggling attacks by sending the Content-Length header twice. Furthermore, invalid Transfer Encoding headers were found to be parsed as valid which could be leveraged for TE:CL smuggling attacks.

Frequently asked questions

What is CVE-2020-7671?: goliath through 1.0.6 allows request smuggling attacks where goliath is used as a backend and a frontend proxy also being vulnerable. It is possible to conduct HTTP request smuggling attacks by sending the Content-Length header twice. Furthermore, invalid Transfer Encoding headers were found to be parsed as valid which could be leveraged for TE:CL smuggling attacks.
How severe is CVE-2020-7671?: CVE-2020-7671 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2020-7671 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-7671?: CVE-2020-7671 affects Goliath Project Goliath. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-7671?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-7671 published?: CVE-2020-7671 was published on 2020-06-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:goliath_project:goliath:*:*:*:*:*:ruby:*:*

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