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CVE-2021-42837

30
FAUCET Score

CVE-2021-42837 is a critical authentication bypass vulnerability affecting Talend Data Catalog versions prior to 7.3-20210930. When SAML/OAuth is configured, the native login page fails to properly enforce authentication, allowing any valid user from the identity provider to log in with an arbitrary password. This flaw carries a CVSS score of 9.8 (Critical) due to its network-based attack vector, low complexity, and potential for complete compromise of confidentiality, integrity, and availability. While no public exploit code (Metasploit, Nuclei, ExploitDB) or active exploitation (KEV list) has been identified, and community discussion is minimal, the high FAUCET Risk Score of 79/100 indicates a significant theoretical risk.

Impacted Technologies

VendorProductVersion(s)CPE
< 7.3-20210930CPE matchmatch criteria
cpe:2.3:a:talend:data_catalog:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.16%
Probability of exploitation in next 30 days
EPSS Percentile
63.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0116 is in the 50th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

jira.talendforge.org / browse/TAPACHE-180
Vendor Advisory
talend.com / resources
Vendor Advisory