CVE-2021-30638

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

6.55% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 93.7% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-04-27 18:30Z5 YR AGO

Last updated

2024-08-03 22:40Z2 YR AGO

Reserved

2021-04-13

Assigning CNA

apache

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-200Exposure of Sensitive Information to an Unauthorized ActorClass
• CWE-863Incorrect AuthorizationClass

Data version

5.1

Document digest

450449be07e6ced9c3f7dc7f0d4cc17e60b931b2b99bdbe4c76ac37c31d889b7

• lists.apache.orghttps://lists.apache.org/thread.html/r37dab61fc7f7088d4311e7f995ef4117d58d86a675f0256caa6991eb%40%3Cusers.tapestry.apache.org%3Ex_refsource_MISC
• www.openwall.com[oss-security] 20210427 CVE-2021-30638: An Information Disclosure due to insufficient input validation exists in Apache Tapestry 5.4.0 and laterhttp://www.openwall.com/lists/oss-security/2021/04/27/3mailing-listx_refsource_MLIST
• www.zerodayinitiative.comhttps://www.zerodayinitiative.com/advisories/ZDI-21-491/x_refsource_MISC
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20210528-0004/x_refsource_CONFIRM