EUVD-2026-81034
GHSA-3j3m-qx68-6ww6
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/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
Network-reachable API abusable by a low-privilege project admin (PR:L), automatable oracle keeps AC:L, and impact is disclosure of a scanner secret only (C:H, I:N, A:N).
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
4DescriptionCVE.org
Harbor through 2.15.2 fails to properly restrict the q query parameter filtering on scanner registration access credentials. Project administrators can exploit fuzzy filtering on the AccessCredential column to recover the scanner adapter secret one character at a time through response row counts.
AnalysisAI
Harbor through 2.15.2 can disclose scanner adapter AccessCredential secrets to an authenticated project administrator who abuses fuzzy q-parameter filtering and observes response row counts one character at a time. This is a privilege-gated confidentiality issue rather than a critical remote-takeover flaw: the attacker must already hold a project-admin role and must issue many sequential API requests, with no user interaction and no special feature toggle required in default configurations. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires an authenticated Harbor Project Administrator account (PR:L) that can query scanner registrations; exploitation works against default configurations of Harbor through 2.15.2 with no user interaction and no special feature toggle. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine but privilege-gated confidentiality issue, not a critical remote-takeover flaw. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch identified at time of analysis, and the supplied references do not name a fixed release; monitor the VulnCheck advisory (https://www.vulncheck.com/advisories/harbor-through-2.15.2-scanner-credential-disclosure-via-query-parameter) and install a Harbor release later than 2.15.2 when the vendor publishes one. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Harbor instances and confirm any running version through 2.15.2; restrict project-administrator assignments to only essential personnel and review recent Harbor API logs for sequential q-parameter requests or anomalous response-row probing against scanner adapter endpoints. …
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Same weakness CWE-200 – Information Exposure
View allSame technique Information Disclosure
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External POC / Exploit Code
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