Unauthenticated denial of service via unbounded body read
Published Aug 20, 2026 · Updated Aug 25, 2026
Denial of service in FreeIPA on Red Hat Enterprise Linux allows remote attackers to disrupt IdM through oversized migration POST requests. The /ipa/migration/migration.py handler reads each attacker-controlled request body fully into memory without enforcing a size limit. No authentication is required; sustained oversized requests increase memory consumption, slow request handling, and can interrupt the IdM service.
Summary
What happened
Denial of service in FreeIPA on Red Hat Enterprise Linux allows remote attackers to disrupt IdM through oversized migration POST requests. The /ipa/migration/migration.py handler reads each attacker-controlled request body fully into memory without enforcing a size limit. No authentication is required; sustained oversized requests increase memory consumption, slow request handling, and can interrupt the IdM service.
The record
- CVE
- CVE-2026-73197
- Published
- Aug 20, 2026
- Updated
- Aug 25, 2026
- Vendor
- 389 Directory Server
- Product
- Red Hat Enterprise Linux 10
- Classifications
- CWE-770, T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 20, 2026CVE publishedPublication date reported by the CVE source.
- Aug 25, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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