Is CVE-2021-31917 actively exploited?

No active exploitation of CVE-2021-31917 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-31917 be exploited remotely?

Yes. CVE-2021-31917 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-31917?

CVE-2021-31917 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2021-31917

CWE-287Published: September 21, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

A flaw was found in Red Hat DataGrid 8.x (8.0.0, 8.0.1, 8.1.0 and 8.1.1) and Infinispan (10.0.0 through 12.0.0). An attacker could bypass authentication on all REST endpoints when DIGEST is used as the authentication method. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

NVD Source

Technical Analysis

CVE-2021-31917 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.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.