How severe is CVE-2024-27302?

CVE-2024-27302 has a CVSS 3.x base score of 9.1, 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 none.

Is CVE-2024-27302 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-27302?

CVE-2024-27302 affects Go-zero. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-27302?

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.

Does CVE-2024-27302 have an EU (EUVD) identifier?

Yes. CVE-2024-27302 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0918.

When was CVE-2024-27302 published?

CVE-2024-27302 was published on 2024-03-06 and last updated on 2026-06-17.

CVE-2024-27302

CVE-2024-27302 is a critical-severity vulnerability in Go-zero with a CVSS 3.x base score of 9.1. 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-639.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-0918
Weakness: CWE-639
Affected product: Go-zero
Published: 2024-03-06
Last modified: 2026-06-17

Description

go-zero is a web and rpc framework. Go-zero allows user to specify a CORS Filter with a configurable allows param - which is an array of domains allowed in CORS policy. However, the `isOriginAllowed` uses `strings.HasSuffix` to check the origin, which leads to bypass via a malicious domain. This vulnerability is capable of breaking CORS policy and thus allowing any page to make requests and/or retrieve data on behalf of other users. Version 1.4.4 fixes this issue.

Frequently asked questions

What is CVE-2024-27302?: go-zero is a web and rpc framework. Go-zero allows user to specify a CORS Filter with a configurable allows param - which is an array of domains allowed in CORS policy. However, the `isOriginAllowed` uses `strings.HasSuffix` to check the origin, which leads to bypass via a malicious domain. This vulnerability is capable of breaking CORS policy and thus allowing any page to make requests and/or retrieve data on behalf of other users. Version 1.4.4 fixes this issue.
How severe is CVE-2024-27302?: CVE-2024-27302 has a CVSS 3.x base score of 9.1, 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 none.
Is CVE-2024-27302 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-27302?: CVE-2024-27302 affects Go-zero. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-27302?: 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.
Does CVE-2024-27302 have an EU (EUVD) identifier?: Yes. CVE-2024-27302 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0918.
When was CVE-2024-27302 published?: CVE-2024-27302 was published on 2024-03-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:go-zero:go-zero:*:*:*:*:*:*:*:*

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