CVE-2017-20146

CVE-2017-20146 is a critical-severity vulnerability in Gorillatoolkit Handlers 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-346.

Key facts

Description

Usage of the CORS handler may apply improper CORS headers, allowing the requester to explicitly control the value of the Access-Control-Allow-Origin header, which bypasses the expected behavior of the Same Origin Policy.

Frequently asked questions

What is CVE-2017-20146?
Usage of the CORS handler may apply improper CORS headers, allowing the requester to explicitly control the value of the Access-Control-Allow-Origin header, which bypasses the expected behavior of the Same Origin Policy.
How severe is CVE-2017-20146?
CVE-2017-20146 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-2017-20146 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-20146?
CVE-2017-20146 affects Gorillatoolkit Handlers. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-20146?
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-2017-20146 published?
CVE-2017-20146 was published on 2022-12-27 and last updated on 2026-06-17.

References

Affected products (1)

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