Threat Intelligence / CVE / CVE-2026-55956

CVE-2026-55956

CVSS 6.5 (MEDIUM) · EPSS 0.2% · Priority 3.5/10 · Published 2026-06-29

As of 2026-06-30, CVE-2026-55956 is a CVSS 6.5 (MEDIUM-severity) vulnerability. EPSS exploitation probability 0.2%. Threadlinqs Intelligence tracks 0 threats exploiting it.

Last updated: 2026-06-30

Improper Authorization vulnerability in Apache Tomcat leads to security constraints specified for the default servlet ignoring any method or method omission configured as part of the constraint. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue.

CVSS v3 vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Weaknesses (CWE)

CWE-285

References

Full detection coverage & IOCs for threats exploiting CVE-2026-55956 are available via the Threadlinqs MCP server (Purple tier). View plans →

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Enriched from CVE.org, NVD (this product uses the NVD API but is not endorsed or certified by the NVD), FIRST EPSS, CISA KEV, and GitHub Security Advisories.