CVE-2026-21626

HIGHNVD 7.57.5—Trending — 3 sources updated this week

7.5

Access control settings for forum post custom fields are not applied to the JSON output type, leading to an ACL violation vector an information disclosure

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 4.2%
KEV: Not listed

Published

February 6, 2026

Last Modified

February 18, 2026

References (1)

security@joomlahttps://stackideas.com/easydiscuss

Weakness Classification(1)

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

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

Data Freshness Timeline

(refreshed 9× in last 7d / 9× 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
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 14:30 UTCEG score recompute
2026-05-29 14:30 UTCGHSA enrichment
2026-05-29 13:44 UTCepss_batch
2026-05-29 13:44 UTCepss_batch

Frequently asked(5)

What is CVE-2026-21626?

CVE-2026-21626 is a high vulnerability published on February 6, 2026. Access control settings for forum post custom fields are not applied to the JSON output type, leading to an ACL violation vector an information disclosure

When was CVE-2026-21626 disclosed?

CVE-2026-21626 was first published in the National Vulnerability Database on February 6, 2026, with the most recent update on February 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-21626 actively exploited?

CVE-2026-21626 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-21626?

CVE-2026-21626 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2026-21626?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-21626, 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-2026-21626

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CVE-2026-21626

📅 Published

🔄 Last Modified

🔗 References (1)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2026-21626?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (1)

Frequently asked(5)

Related CVEs(same CWE)