CVE-2026-1496 json
Coverity CLI Authentication Bypass
published 7mo ago modified 14d ago also EUVD-2026-16595
- cvss
- 9.3
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 46%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Black Duck Coverity 2024.3.0A, 2024.3.1A, 2024.3.2A, 2024.6.0A, 2024.6.1A, 2024.9.0A, 2024.9.1A, 2024.12.0A, 2024.12.1A, 2024.12.2, 2025.3.0A, 2025.3.1A, 2025.3.2, 2025.6.0A, 2025.6.2A, 2025.6.4, 2025.9.0A, 2025.9.2A, 2025.9.3, 2025.12.0
Is CVE-2026-1496 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 7mo ago
Exploit prediction
0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |
| CNA | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- Black Duck Coverity
Classification
- Weakness
-
- CWE-639 Authorization Bypass Through User-Controlled Key
References
-
community.blackduck.com
/s/article/Black-Duck-Security-Advisory-CVE-2026-1496
vendor-advisory
-
community.blackduck.com
/s/article/Instructions-on-how-to-block-token-endpoint-for-Coverity-Connect
vendor-advisory, mitigation
-
community.blackduck.com
/s/article/WAF-IDS-IPS-Mitigation-Guidance
vendor-advisory, mitigation
-
github.com
/blackduck-inc/Coverity-Usage-Log-Analyzer
related
Sources
- CVE List CVE-2026-1496
- NVD CVE-2026-1496
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