EUVD-2026-50413
GHSA-f3gv-992v-c3v5
Severity by source
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/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
Remote and unauthenticated (AV:N/PR:N/UI:N) but a specific precondition and request-shaping are needed so AC:H; high confidentiality and integrity data access with minor availability impact and no scope change.
Primary rating from Vendor (synopsys).
CVSS VectorVendor: synopsys
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/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
Lifecycle Timeline
3DescriptionCVE.org
A Spring Security authentication and authorization bypass exists in Coverity Connect versions between 2023.6.0 and 2026.3.0. An unauthenticated malicious threat actor that can send a specially crafted HTTP request is able to bypass authentication and authorization controls on certain API endpoints to access data within Coverity.
Articles & Coverage 1
AnalysisAI
Authentication and authorization bypass in Synopsys/Black Duck Coverity Connect (versions 2023.6.0 through 2026.3.0) allows an unauthenticated attacker to reach certain protected API endpoints by sending a specially crafted HTTP request, exposing data held within Coverity. The flaw stems from a Spring Security misconfiguration classified as CWE-288 (authentication bypass using an alternate path or channel). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires network access to a Coverity Connect instance (versions 2023.6.0 through 2026.3.0) and the ability to send a specially crafted HTTP request that targets 'certain API endpoints' - only a subset of endpoints is bypassable, not the entire application. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The signals are mixed but lean toward genuine priority. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who can reach the Coverity Connect web server crafts an HTTP request whose path is constructed to satisfy a specific precondition and bypass the Spring Security filter chain, causing a protected API endpoint to respond without authenticating the caller. The attacker then enumerates and reads sensitive data within Coverity - such as source-code defect findings, project configurations, and analysis results - and, given the high integrity impact, may alter accessible data. … |
| Remediation | Upgrade Coverity Connect to a fixed release beyond the affected 2023.6.0-2026.3.0 range; consult the Black Duck Product Security Advisory (https://community.blackduck.com/s/article/Black-Duck-Product-Security-Advisory-CVE-2026-8338-Authentication-and-Authorization-Bypass) for the exact patched version, as no specific fix version was included in the provided data and it should not be invented. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all Coverity Connect deployments and document version numbers; disable external network access to affected instances where operationally feasible; enable comprehensive API request logging. …
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External POC / Exploit Code
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