Is CVE-2025-31651 actively exploited?

No active exploitation of CVE-2025-31651 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-31651 be exploited remotely?

Yes. CVE-2025-31651 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2025-31651?

CVE-2025-31651 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2025-31651

CRITICAL

CVE-2025-31651

CWE-116Published: April 28, 2025· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in Apache Tomcat. For a subset of unlikely rewrite rule configurations, it was possible

for a specially crafted request to bypass some rewrite rules. If those

rewrite rules effectively enforced security constraints, those

constraints could be bypassed.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.5, from 10.1.0-M1 through 10.1.39, from 9.0.0.M1 through 9.0.102.

The following versions were EOL at the time the CVE was created but are

known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions

may also be affected.

Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.

NVD Source

Technical Analysis

CVE-2025-31651 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.