How should we interpret CVSS severity scores?

CVSS estimates technical severity, but it does not automatically equal business risk. Prioritize using context like internet exposure, asset criticality, known exploitation, and whether compensating controls exist. A Medium CVSS on an exposed production system can be more urgent than a Critical on an isolated non-production host.

Vulnerability Database

Q: What is a Vulnerability (CVE) and why does it matter?

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

Q: What's the difference between a vulnerability, an exploit, and a zero-day?

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. Risk increases sharply when exploitation becomes reliable or widespread.

Q: Why do vulnerabilities keep reappearing in our environment?

Recurring findings usually come from incomplete asset discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host.

Q: How do we prioritize remediation without burning out the team?

Use a repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress so remediation is steady, not reactive.

Q: How can SynScan help reduce vulnerability risk over time?

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.

383,304

Total vulnerabilities in the database

CVE-2026-59185 — github.com/identrail/identrail

Authorization Bypass Through User-Controlled Key

Summary

identrail's GitHub App connection-completion endpoint binds a fully client-supplied installation_id to the caller's workspace without verifying that the installation belongs to, or was installed by, the workspace that initiated the connect flow. identrail then mints a GitHub App installation access token for the supplied installation_id using the app's own JWT, so an authenticated tenant can link any other identrail customer's GitHub App installation into their own workspace and read that victim organization's private repositories.

Affected code (default-on path, no feature flag)

Route: internal/api/router.go:3590 — POST /v1/workspaces/:workspace_id/projects/:project_id/github/connect/complete. installation_id is read from the JSON body or the attacker-controlled X-GitHub-Installation-ID header (router.go:3582-3588).
Service: internal/api/github_connect.go:781 CompleteGitHubConnection. The state token IS rigorously bound to the caller's scope (github_connect.go:818: if stateRecord.TenantID != scope.TenantID || stateRecord.WorkspaceID != project.WorkspaceID || stateRecord.ProjectID != project.ProjectID { ... }), but the only check on installation_id is request.InstallationID <= 0 (:794). The raw client value is persisted as the workspace's connection (:840).
Cross-tenant read primitive: internal/connectors/github/repositories.go:39 ListInstallationRepositories → internal/connectors/github/app.go:170 mints a token via POST /app/installations/{installationId}/access_tokens signed with the App JWT, succeeding for any installation where identrail's app is installed.

The feature-flagged V2 path CompleteGitHubConnector (github_connect.go:447, default off) shares the gap and is additionally weaker (matches pending connector by state value alone with no caller-scope re-check); a single fix should cover both.

Intent proof

The code binds state to {TenantID, WorkspaceID, ProjectID} and re-verifies it at completion (:818), demonstrating it understands binding is required. The asymmetry — state bound, installation_id unbound — is the missed check.

Exploitation

Attacker is any authenticated identrail tenant; they call StartGitHubConnection for their own workspace and receive a state.
Attacker calls the completion route with {state: <their state>, installation_id: V} where V is a victim org's identrail GitHub App installation id (installation ids are not secret — they appear in post-install redirect URLs, webhook payloads, the org's GitHub App settings, and are enumerable integers).
CompleteGitHubConnection accepts (state matches attacker scope), ListInstallationRepositories(V) mints a token for V and lists the victim org's private repos, and the connection is persisted under the attacker's workspace.
Attacker now reads the victim org's private repository inventory and can drive posture scans/repo reads via their own workspace.

Impact: cross-tenant disclosure of another customer organization's private GitHub repositories and metadata.

Remediation

Bind installation_id with the same rigor as state: capture it from GitHub's signed post-install redirect (setup_url/callback_url) and pin it to the pending state at start time, and/or after minting verify the installation's account matches the org the initiating workspace is authorized for.

Published: Sep 9, 2026
Updated: Sep 10, 2026
CVE: CVE-2026-59185
GHSA: GHSA-cp3j-m783-3ph5
Severity: High
Exploit:
CISA KEV:

CVSS v3:

Severity: High
Score: 8.5
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

CWEs:

OWASP TOP 10:

A5 - Broken Access Control

Affected Software
References

Software	Affected versions
github.com/identrail/identrail	`< 1.0.2`

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Frequently Asked Questions

What is a Vulnerability (CVE) and why does it matter?

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.