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    CVE-2026-73196

    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.

    Published:Aug 20, 2026
    Last Modified:Aug 24, 2026
    EPS:Aug 20, 2026
    EPSS Score:0.00221
    CVSS Score:4.3

    Affected Products

    Vendor
    Freeipa
    Product
    Freeipa
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-13097 (CVSS 8.7) — A privilege escalation flaw was found in FreeIPA. The uniqueness constraint enforced on Kerberos principal nam…
    CVE-2026-73198 (CVSS 7.5) — A flaw was found in FreeIPA. A remote, unauthenticated attacker can exploit a vulnerability in the `/ipa/i18n_…
    CVE-2026-73197 (CVSS 7.5) — A flaw was found in FreeIPA. A remote, unauthenticated attacker can exploit this vulnerability by sending over…
    CVE-2026-11861 (CVSS 9.6) — A flaw was found in FreeIPA. When a trust relationship is configured between FreeIPA and Active Directory, Act…
    CVE-2026-19550 (CVSS 8.2) — A flaw was found in FreeIPA. The trust-fetch-domains command is gated by a read-only permission on the trust o…
    CVE-2024-2698 (CVSS 8.8) — A vulnerability was found in FreeIPA in how the initial implementation of MS-SFU by MIT Kerberos was missing a…
    CVE-2023-5455 (CVSS 6.5) — A Cross-site request forgery vulnerability exists in ipa/session/login_password in all supported versions of I…
    CVE-2020-1722 (CVSS 5.3) — A flaw was found in all ipa versions 4.x.x through 4.8.0. When sending a very long password (>= 1,000,000 char…
    CVE-2019-10195 (CVSS 6.5) — A flaw was found in IPA, all 4.6.x versions before 4.6.7, all 4.7.x versions before 4.7.4 and all 4.8.x versio…
    CVE-2019-14826 (CVSS 4.4) — A flaw was found in FreeIPA versions 4.5.0 and later. Session cookies were retained in the cache after logout.…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High