CVE-2026-121587
Coolify before 4.1.1 contains an information disclosure vulnerability that allows unauthenticated attackers to enumerate application names across all teams via manual GitHub, GitLab, Bitbucket and Gitea webhooks. Attackers can send a repository name of % or empty with a common branch like main, exploiting unescaped LIKE wildcards to receive every matching application name before signature verification.
Executive briefing
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Evidence confidence: Not assessed Evidence-derived, not an exploitability verdict
Severity & attack characteristics
CVSS vector:CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/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
Technical explanation & impact
Technical root-cause details are not available in the current source record.
Assess the impact using the published CVSS metrics and the affected vendor component.
Affected products and versions
NVD has not supplied machine-readable vulnerable CPE product/version entries for this CVE. This is an information gap, not proof that no products are affected. Check the vendor advisory references below.
Remediation & validation
- Identify exposure by comparing the affected product and version ranges with your asset inventory, SBOM and externally exposed services.
- Review the linked vendor security advisory or patch notes. Upgrade to a vendor-confirmed fixed release; do not infer a fixed version from the CVE description.
- Until patched, consider restricting network access or disabling the affected feature where operationally safe. These are temporary controls, not a substitute for a vendor fix.
- Validate the remediation with a version check and vulnerability rescan, then retain change evidence.
No fixed version is displayed unless it is explicitly established by a vendor advisory. Follow the vendor's release notes for exact product and branch applicability.
Vendor advisories, patches & exploit references
- https://github.com/coollabsio/coolify VENDOR disclosure@vulncheck.com
- https://github.com/coollabsio/coolify/blob/v4.1.0/app/Http/Controllers/Webhook/Github.php#L69 VENDOR disclosure@vulncheck.com
- https://github.com/coollabsio/coolify/commit/809d9b21fa9609de2ce9b49bb838c079598da876 VENDOR disclosure@vulncheck.com
- https://github.com/coollabsio/coolify/commit/c1518ba1c0be36da42b6cef06df4b042f5733b01 VENDOR disclosure@vulncheck.com
- https://github.com/coollabsio/coolify/pull/10361 VENDOR disclosure@vulncheck.com
- https://github.com/coollabsio/coolify/releases/tag/v4.1.1 VENDOR disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/coolify-before-4.1.1-application-name-enumeration-via-manual-webhook-endpoints REFERENCE disclosure@vulncheck.com