CVE-2026-1331

CRITICALNVD 9.89.8—Trending — 3 sources updated this week

9.8

MeetingHub developed by HAMASTAR Technology has an Arbitrary File Upload vulnerability, allowing unauthenticated remote attackers to upload and execute web shell backdoors, thereby enabling arbitrary code execution on the server.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 27.0%
KEV: Not listed

Published

January 22, 2026

Last Modified

February 17, 2026

Advisory Details (2)

Auto-updated Jun 8, 2026

No patch confirmed yet. Sources: cert.

cert

哈瑪星科技｜MeetingHub 無紙化會議 - 存在3個漏洞-TWCERT/CC台灣電腦網路危機處理暨協調中心|企業資安通報協處|資安情資分享|漏洞通報|資安聯盟|資安電子報

https://www.twcert.org.tw/tw/cp-132-10650-a5ee9-1.html

cert

HAMASTAR Technology｜MeetingHub - 3 Vulnerabilities-TWCERT/CC Taiwan Computer Emergency Response Team/Coordination Center

https://www.twcert.org.tw/en/cp-139-10651-ff09c-2.html

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-434Unrestricted Upload of File with Dangerous Type

Data Freshness Timeline

(refreshed 18× 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.

2026-06-08 07:55 UTCEG score recompute
2026-06-08 07:55 UTCGHSA enrichment
2026-06-07 15:25 UTCepss_batch
2026-06-07 15:24 UTCepss_batch
2026-06-06 13:47 UTCepss_batch
2026-06-06 13:47 UTCepss_batch
2026-06-06 13:47 UTCepss_batch
2026-06-05 22:47 UTCepss_batch
2026-06-05 06:10 UTCepss_batch
2026-06-05 06:10 UTCepss_batch
2026-06-04 13:12 UTCepss_batch
2026-06-04 13:12 UTCepss_batch
2026-06-04 13:12 UTCepss_batch
2026-06-02 20:13 UTCepss_batch
2026-06-02 20:13 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch

Frequently asked(5)

What is CVE-2026-1331?

CVE-2026-1331 is a critical vulnerability published on January 22, 2026. MeetingHub developed by HAMASTAR Technology has an Arbitrary File Upload vulnerability, allowing unauthenticated remote attackers to upload and execute web shell backdoors, thereby enabling arbitrary code execution on the server.

When was CVE-2026-1331 disclosed?

CVE-2026-1331 was first published in the National Vulnerability Database on January 22, 2026, with the most recent update on February 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-1331 actively exploited?

CVE-2026-1331 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 27.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-1331?

CVE-2026-1331 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2026-1331?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-1331, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-1331

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CVE-2026-1331

📅 Published

🔄 Last Modified

📋 Advisory Details (2)