CVE-2021-22923

Name: CVE-2021-22923
Creator: NVD / NIST
Published: 2021-08-05T21:15:11.293+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 1.84%

Last modified Jun 17, 2026

CVE-2021-22923 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened.. EPSS estimates a 1.84% chance of exploitation in the next 30 days.

Description

When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS Probability

1.84%

76.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Haxx	Curl	>= 7.27.0, < 7.78.0
Fedoraproject	Fedora	33
Netapp	Cloud Backup	All versions
Netapp	Clustered Data Ontap	All versions
Netapp	Hci Management Node	All versions
Netapp	Solidfire	All versions
Oracle	Mysql Server	>= 5.7.0, <= 5.7.35
Oracle	Mysql Server	>= 8.0.0, <= 8.0.26
Siemens	Sinec Infrastructure Network Services	< 1.0.1.1
Netapp	H300s Firmware	All versions
Netapp	H500s Firmware	All versions
Netapp	H700s Firmware	All versions
Netapp	H300e Firmware	All versions
Netapp	H500e Firmware	All versions
Netapp	H700e Firmware	All versions
Netapp	H410s Firmware	All versions
Splunk	Universal Forwarder	>= 8.2.0, < 8.2.12
Splunk	Universal Forwarder	>= 9.0.0, < 9.0.6
Splunk	Universal Forwarder	9.1.0

References

https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfPatch, Third Party Advisory
https://hackerone.com/reports/1213181Exploit, Issue Tracking, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/Mailing List, Third Party Advisory
https://security.gentoo.org/glsa/202212-01Third Party Advisory
https://security.netapp.com/advisory/ntap-20210902-0003/Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfPatch, Third Party Advisory
https://hackerone.com/reports/1213181Exploit, Issue Tracking, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/Mailing List, Third Party Advisory
https://security.gentoo.org/glsa/202212-01Third Party Advisory
https://security.netapp.com/advisory/ntap-20210902-0003/Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Third Party Advisory

Timeline

Published: Aug 5, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-22923?

How severe is CVE-2021-22923?

CVE-2021-22923 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.84% probability of exploitation in the next 30 days.

How do I fix CVE-2021-22923?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-22923?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST