Overly broad CORS configuration

published 2022-01-06 4 y ago modified 2026-06-17 4 mo ago also GHSA-mgpf-hhgf-cxg4 , EUVD-2022-0646

cvss: 7.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 2.5%; EPSS 2.5% chance of exploitation in 30 days, percentile 84%
public exploits: 0; none known

In Apache Kylin, Cross-origin requests with credentials are allowed to be sent from any origin. This issue affects Apache Kylin 2 version 2.6.6 and prior versions; Apache Kylin 3 version 3.1.2 and prior versions; Apache Kylin 4 version 4.0.0 and prior versions.

Patch / fix

fixed in 2 links 2

maven org.apache.kylin:kylin 3.1.3, 4.0.1
apache kylin 3.1.3

github.com/apache/kylin#1781 pull request
github.com/apache/kylin#1782 pull request

Exploit prediction

2.46% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N
GitHub	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
maven	org.apache.kylin:kylin	<3.1.3 >=4.0.0, <4.0.1	3.1.3 4.0.1

Affected products

Apache Software Foundation Apache Kylin

Classification

Weakness

CWE-863 Incorrect Authorization
CWE-522 Insufficiently Protected Credentials

References

github.com /apache/kylin/pull/1781
web
github.com /apache/kylin/pull/1782
web
lists.apache.org /thread/rzv4mq58okwj1n88lry82ol2wwm57q1m
web, mailing-list, vendor-advisory
openwall.com /lists/oss-security/2022/01/06/2
mailing-list, web, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2021-45457
advisory
github.com /apache/kylin
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary