EUVD-2026-63244
GHSA-p44q-gpjc-mgm9
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Endpoint is network-accessible with no authentication gate, no complexity barrier, and impact is availability-only with no confidentiality or integrity effect, matching PR:N and C:N/I:N/A:H.
Primary rating from Vendor (redhat).
CVSS VectorVendor: redhat
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
2DescriptionCVE.org
A flaw was found in FreeIPA. A remote, unauthenticated attacker can exploit a vulnerability in the /ipa/i18n_messages endpoint by sending an arbitrarily large request body. This can cause the service to consume excessive memory, leading to memory exhaustion, degraded responsiveness, and a denial of service (DoS) condition.
AnalysisAI
Memory exhaustion in FreeIPA's /ipa/i18n_messages endpoint allows a remote, unauthenticated attacker to crash identity services by sending an arbitrarily large HTTP request body. All RHEL-bundled FreeIPA deployments across RHEL 6 through RHEL 10 are affected per Red Hat CPE data. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The FreeIPA HTTPS web interface (default TCP 443) must be network-reachable by the attacker. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.5 score and vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) accurately characterize a network-reachable, zero-authentication DoS with no complexity barrier. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An unauthenticated attacker with network access to the FreeIPA HTTPS interface sends a crafted HTTP POST request containing a multi-gigabyte body to the `/ipa/i18n_messages` endpoint. The FreeIPA server allocates memory to buffer the request without enforcing any size ceiling, exhausting available RAM on the host. … |
| Remediation | Apply the Red Hat-issued errata for FreeIPA as published at https://access.redhat.com/security/cve/CVE-2026-73198. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Conduct an inventory of all FreeIPA deployments across RHEL 6-10 systems and identify internet-exposed instances, assessing the criticality of each for authentication and access control services. …
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View allVendor StatusVendor
SUSE
Severity: ImportantShare
External POC / Exploit Code
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