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Vulnerability record · CVE-2026-73196 · published 20 August 2026

CVE-2026-73196: Redhat enterprise linux allocation without limits vulnerability

Redhat · Enterprise Linux

A flaw was found in FreeIPA. A low-privilege authenticated user can exploit this vulnerability by submitting an oversized One-Time Password (OTP) key value. This oversized key is then decoded and re-encoded without proper size limits, consuming excessive CPU and memory resources. This can lead to a denial of service, degrading the availability of the IPA service.

6.5 CVSS 3.1 Medium EPSS 0.43% · top 65.6% CWE-770 · Allocation without limits
6.5CVSS 3.1 base score
0.43%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
2References
24 Aug 2026Last modified by NVD

Description

A flaw was found in FreeIPA. A low-privilege authenticated user can exploit this vulnerability by submitting an oversized One-Time Password (OTP) key value. This oversized key is then decoded and re-encoded without proper size limits, consuming excessive CPU and memory resources. This can lead to a denial of service, degrading the availability of the IPA service.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/security/cve/CVE-2026-73196 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2474712 Issue TrackingVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-73196), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.