Cryostat: authentication bypass if network policies are disabled

Description

A vulnerability was found in the Cryostat HTTP API. Cryostat's HTTP API binds to all network interfaces, allowing possible external visibility and access to the API port if Network Policies are disabled, allowing an unauthenticated, malicious attacker to jeopardize the environment.

Scores

EPSS (exploitation in 30 days)

0.33% · top 74% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.9.

Weakness

• CWE-289: Authentication Bypass by Alternate Name (opens in a new tab)All about CWE-289 and its CVEs

Affected products

• Cryostat · Cryostat

  • affected < 4.0.2

• Red Hat · Cryostat 4 on RHEL 9

  • unaffected 0.5.2-3 – < *

• Red Hat · Cryostat 4 on RHEL 9

  • unaffected 4.0.2-3 – < *

• Red Hat · Cryostat 4 on RHEL 9

  • unaffected 4.0.2-3 – < *

• Red Hat · Cryostat 4 on RHEL 9

  • unaffected 4.0.2-3 – < *

• Red Hat · Cryostat 4 on RHEL 9

  • unaffected 4.0.2-3 – < *

• Red Hat · Cryostat 4 on RHEL 9

  • unaffected 4.0.2-3 – < *

• Red Hat · Cryostat 4 on RHEL 9

  • unaffected 4.0.2-3 – < *

• Red Hat · Cryostat 4 on RHEL 9

  • unaffected 4.0.2-3 – < *

• Red Hat · Cryostat 4 on RHEL 9

  • unaffected 4.0.2-3 – < *

• Red Hat · Cryostat 4 on RHEL 9

  • unaffected 4.0.2-3 – < *

• Red Hat · Cryostat 4 on RHEL 9

  • unaffected 4.0.2-3 – < *

• Red Hat · Cryostat 4

  All versions: affected

• Red Hat · Cryostat 4

  All versions: affected

• Red Hat · Cryostat 4

  All versions: affected

What to do

Workaround: Cryostat is not vulnerable by default, as Network Policy is enabled and prevents this behavior. Make sure the Network Policies are enabled in Custom Resources and that the underlying cluster network stack supports Network Policies.

References (5)

• RHSA-2025:14919 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
• https://access.redhat.com/security/cve/CVE-2025-8415 (opens in a new tab)vdb-entryx_refsource_REDHAT
• RHBZ#2385773 (opens in a new tab)issue-trackingx_refsource_REDHAT
• https://github.com/cryostatio/cryostat/pull/1001 (opens in a new tab)
• https://github.com/cryostatio/cryostat/releases/tag/v4.0.2 (opens in a new tab)

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2025-8415](https://trackcve.app/badge/CVE-2025-8415.svg)](https://trackcve.app/cve/CVE-2025-8415)

Record last updated 23 Dec 2025, 22:37 UTC.