7.5 High

CVE-2026-73198 Ipa: freeipa: unauthenticated dos in `/ipa/i18n_messages` via unbounded request body read

Description

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.

CVSS 3.1 detail

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitable remotely over the network, without an account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.

Attack vector: Network
Attack complexity: Low
Privileges required: None
Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Affected products and versions

Product	Affected versions	Fixed in
Red Hat Enterprise Linux 10	Versions not published
Red Hat Enterprise Linux 6	Versions not published
Red Hat Enterprise Linux 7	Versions not published
Red Hat Enterprise Linux 8 8100020261007070536.823393	earliest → < 8100020261007070536.823393f5	8100020261007070536.823393f5
Red Hat Enterprise Linux 9	Versions not published
Red Hat Enterprise Linux 10.0 Extended Update Support	Versions not published
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	Versions not published
Red Hat Enterprise Linux 9.6 Extended Update Support	Versions not published
Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	Versions not published

Show the 6 other branches

Product	Affected versions	Fixed in
Red Hat Enterprise Linux 8.8 Telecommunications Update Service 8080020261007071832	earliest → < 8080020261007071832.b0a6ceea	8080020261007071832.b0a6ceea
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 8080020261007071832	earliest → < 8080020261007071832.b0a6ceea	8080020261007071832.b0a6ceea
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 8060020261008133528	earliest → < 8060020261008133528.ada582f1	8060020261008133528.ada582f1
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On 8060020261008133528	earliest → < 8060020261008133528.ada582f1	8060020261008133528.ada582f1
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 8040020261027121355.5	earliest → < 8040020261027121355.5b01ab7e	8040020261027121355.5b01ab7e
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 8040020261027121355.5	earliest → < 8040020261027121355.5b01ab7e	8040020261027121355.5b01ab7e

References

RHSA-2026:70564 access.redhat.com
RHSA-2026:72279 access.redhat.com
RHSA-2026:82935 access.redhat.com
RHSA-2026:83083 access.redhat.com
RHSA-2026:83084 access.redhat.com
RHSA-2026:83085 access.redhat.com
RHSA-2026:83460 access.redhat.com
RHSA-2026:83461 access.redhat.com
RHSA-2026:89836 access.redhat.com
RHSA-2026:93452 access.redhat.com
access.redhat.com access.redhat.com
RHBZ#2472960 bugzilla.redhat.com

Timeline

Published August 20, 2026
Last modified November 4, 2026

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