EUVD-2026-87487
GHSA-79w7-46j2-phwg
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/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
PR:L because attacker must be a lower-trust session participant; UI:R for operator opening the export; S:C as impact lands in the separate spreadsheet application; low C/I, no availability impact.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
2DescriptionCVE.org
OpenClaw (npm package openclaw) before 2026.8.1 does not neutralize leading characters that spreadsheet applications interpret as formulas when the Control UI exports session data to CSV. Although session labels were quoted as CSV text, a lower-trust participant who can influence a session label or the first user message can place a formula-like cell in the Usage export; if an operator opens that export in a spreadsheet application with formula evaluation enabled, the cell may be evaluated with the permissions of the spreadsheet user. OpenClaw itself does not evaluate the formula, and practical impact depends on the spreadsheet application's security settings. The issue is fixed in 2026.8.1.
AnalysisAI
CSV formula injection in OpenClaw (npm package openclaw) prior to 2026.8.1 allows a lower-trust participant who can influence a session label or the first user message to plant a formula-like cell that gets written into the Control UI's Usage/session CSV export; if an operator opens that export in a spreadsheet application with formula evaluation enabled, the cell may execute with the spreadsheet user's permissions. OpenClaw itself never evaluates the formula and the practical impact depends entirely on the downstream spreadsheet's security settings, so successful abuse requires a chain of operator actions (exporting the CSV, opening it in a formula-evaluating spreadsheet, dismissing content warnings). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires all of: (1) an attacker who is a lower-trust participant able to influence a session label or the first user message; (2) an operator who exports session/Usage data to CSV from the OpenClaw Control UI; (3) the operator opening that CSV in a spreadsheet application with formula evaluation enabled and dismissing any macro/external-content warnings. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuinely low-priority issue despite the network attack vector. … 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 | Vendor-released patch: upgrade OpenClaw (npm `openclaw`) to 2026.8.1 or later, the version in which the formula-injection handling was corrected; apply it via the normal npm dependency update path and restart the service so the Control UI export code is reloaded. … Detailed patch versions, workarounds, and compensating controls in full report. |
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