CVE-2021-21658 — CRITICAL (9.1)

Q: What is CVE-2021-21658?

CVE-2021-21658 is a vulnerability with a CVSS score of 9.1 (CRITICAL). Jenkins Nuget Plugin 1.0 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

Q: How severe is CVE-2021-21658?

CVE-2021-21658 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2021-21658?

Check the references section above for vendor advisories and patch information. Affected products include: Jenkins Nuget.

Vulnerability Description

Jenkins Nuget Plugin 1.0 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

CVSS Score

9.1

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Jenkins	Nuget	<= 1.0

References

http://www.openwall.com/lists/oss-security/2021/05/25/3Mailing ListThird Party Advisory
https://www.jenkins.io/security/advisory/2021-05-25/#SECURITY-2340Vendor Advisory
http://www.openwall.com/lists/oss-security/2021/05/25/3Mailing ListThird Party Advisory
https://www.jenkins.io/security/advisory/2021-05-25/#SECURITY-2340Vendor Advisory

FAQ

What is CVE-2021-21658?

CVE-2021-21658 is a vulnerability with a CVSS score of 9.1 (CRITICAL). Jenkins Nuget Plugin 1.0 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

How severe is CVE-2021-21658?

CVE-2021-21658 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-21658?

Check the references section above for vendor advisories and patch information. Affected products include: Jenkins Nuget.