EUVD-2026-63240
GHSA-m6vw-rcwj-pg9q
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Network-accessible endpoint requires no authentication or user interaction; impact is purely availability via resource exhaustion, with no confidentiality or integrity compromise.
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 this vulnerability by sending oversized form POST requests to the /ipa/migration/migration.py endpoint. This can force the migration handler to read attacker-controlled request bodies fully into memory, leading to increased memory usage, slower request handling, and potential service disruption or denial of service.
AnalysisAI
FreeIPA's migration endpoint on Red Hat Enterprise Linux 6 through 10 is exploitable by remote unauthenticated attackers who send oversized HTTP POST requests to /ipa/migration/migration.py, causing the server to buffer arbitrarily large request bodies fully into memory. This resource exhaustion (CWE-770) leads to degraded performance, memory pressure, and potential service disruption of the identity management service. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The FreeIPA HTTPS service (typically port 443) must be reachable by the attacker - no authentication, user interaction, or special session state is required, as confirmed by CVSS PR:N/UI:N. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) accurately reflects the threat model: network-reachable, low-complexity, no authentication needed, with high availability impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker with network access to the FreeIPA server's HTTPS port crafts a multipart/form POST request with an arbitrarily large body (e.g., hundreds of megabytes) directed at `/ipa/migration/migration.py`. The migration handler reads the full payload into memory without truncating or rejecting it, consuming available RAM proportional to request size. … |
| Remediation | Consult the Red Hat security advisory at https://access.redhat.com/security/cve/CVE-2026-73197 for updated FreeIPA packages; no specific fixed-version number was present in the available data, so the exact patched package version should be confirmed directly from the advisory before deployment. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all FreeIPA instances on RHEL 6-10 across your infrastructure and document network exposure (internal vs. …
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View allVendor StatusVendor
SUSE
Severity: ImportantShare
External POC / Exploit Code
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