CVE-2026-1496

Vulnerable versions of Coverity Connect lack an error handler in the authentication logic for command line tooling that makes it vulnerable to an authentication bypass. A malicious actor with access to the /token API endpoint that either knows or guesses a valid username, can use this in a specially crafted HTTP request to bypass authentication. Successful exploitation allows the malicious actor to assume all roles and privileges granted to the valid user’s Coverity Connect account.

Score

CVSS 4.0 9.3 Critical

Status

Awaiting Analysis - disclosure@synopsys.com

Published

2026-03-27

Last modified

2026-10-26

Weaknesses

CWE-639

Affected products

• Coverity (Black Duck)

References

• https://community.blackduck.com/s/article/Black-Duck-Security-Advisory-CVE-2026-1496
• https://community.blackduck.com/s/article/Instructions-on-how-to-block-token-endpoint-for-Coverity-Connect
• https://community.blackduck.com/s/article/WAF-IDS-IPS-Mitigation-Guidance
• https://github.com/blackduck-inc/Coverity-Usage-Log-Analyzer