How severe is CVE-2026-73484?

CVE-2026-73484 has a CVSS 4.0 base score of 8.6, rated high severity.

Is CVE-2026-73484 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-73484?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-73484 published?

CVE-2026-73484 was published on 2026-08-13.

CVE-2026-73484

CVE-2026-73484 is a high-severity vulnerability with a CVSS 4.0 base score of 8.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-184.

Key facts

Severity: High (CVSS 4.0 base score 8.6)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-184
Published: 2026-08-13
Last modified: 2026-08-13

Description

Flowise before 3.1.3 contains a sandbox escape vulnerability in pythonCodeValidator.ts that fails to block native Pandas DataFrame methods like to_csv, to_json, pipe, and query. Authenticated attackers can exploit this to exfiltrate uploaded CSV data or write arbitrary files to the server filesystem.

Frequently asked questions

What is CVE-2026-73484?: Flowise before 3.1.3 contains a sandbox escape vulnerability in pythonCodeValidator.ts that fails to block native Pandas DataFrame methods like to_csv, to_json, pipe, and query. Authenticated attackers can exploit this to exfiltrate uploaded CSV data or write arbitrary files to the server filesystem.
How severe is CVE-2026-73484?: CVE-2026-73484 has a CVSS 4.0 base score of 8.6, rated high severity.
Is CVE-2026-73484 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-73484?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-73484 published?: CVE-2026-73484 was published on 2026-08-13.

References

Other CWE-184 vulnerabilities

CVE-2026-47392 — Critical (CVSS 9.9): PraisonAI is a multi-agent teams system. Prior to version 4.6.40 of PraisonAI, corresponding to version 1.6.40 of…
CVE-2026-28363 — Critical (CVSS 9.9): In OpenClaw before 2026.2.23, tools.exec.safeBins validation for sort could be bypassed via GNU long-option…
CVE-2026-74886 — Critical (CVSS 9.8): openssl_encrypt versions before 1.4.0 contain a plugin sandbox bypass vulnerability where the PluginImportGuard blocks…
CVE-2026-56315 — Critical (CVSS 9.8): picklescan before 1.0.4 fails to block at least seven Python standard library modules (including uuid, _osx_support,…
CVE-2026-53873 — Critical (CVSS 9.8): picklescan before 1.0.4 contains an incomplete blocklist for the profile module that fails to block the module-level…
CVE-2025-71323 — Critical (CVSS 9.8): picklescan before 0.0.33 fails to block the ctypes module, allowing attackers to achieve remote code execution by…

Browse all CWE-184 vulnerabilities →