CVE-2026-31381

MEDIUMNVD 5.35.3—

5.3

An attacker can extract user email addresses (PII) exposed in base64 encoding via the state parameter in the OAuth callback URL.

CVSS v3: 5.3
EG Score: 5.3(medium)
EPSS: 2.8%
KEV: Not listed

Published

March 20, 2026

Last Modified

April 16, 2026

References (2)

Data Freshness Timeline

(refreshed 17× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
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Frequently asked(5)

What is CVE-2026-31381?

CVE-2026-31381 is a medium vulnerability published on March 20, 2026. An attacker can extract user email addresses (PII) exposed in base64 encoding via the state parameter in the OAuth callback URL.

When was CVE-2026-31381 disclosed?

CVE-2026-31381 was first published in the National Vulnerability Database on March 20, 2026, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-31381 actively exploited?

CVE-2026-31381 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-31381?

CVE-2026-31381 has a CVSS v3 base score of 5.3 (NVD).

How do I remediate CVE-2026-31381?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-31381, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2026-31381

📅 Published

🔄 Last Modified

🔗 References (2)