Is CVE-2026-43512 actively exploited?

No active exploitation of CVE-2026-43512 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-43512 be exploited remotely?

Yes. CVE-2026-43512 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-43512?

CVE-2026-43512 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2026-43512

CWE-592Published: May 12, 2026· Updated: May 15, 2026

9.8

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:12.0th

Official Description

DEPRECATED: Authentication Bypass Issues vulnerability in digest authentication in Apache Tomcat.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from before 7.0.0.

Older unsupported versions any also be affect

Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.

NVD Source

Technical Analysis

CVE-2026-43512 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.