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NVD / CVE Program· CNA redhat

CVE-2026-13097: Ipa: privilege escalation via krbcanonicalname manipulation due to realm-unaware uniqueness enforcement in freeipa ldap datastore

Noroxi assessment

Priority: Monitor (action score 34/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.77% (FIRST EPSS); higher than 56% of all records.
  • Anyone who can reach it over the internet can trigger it. Administrator privileges are required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: ipa-client (AlmaLinux:10) 4.13.4-1.el10_2; ipa-client-common (AlmaLinux:10) 4.13.4-1.el10_2; ipa-client-encrypted-dns (AlmaLinux:10) 4.13.4-1.el10_2.

Low priority for now. Upgrade to ipa-client (AlmaLinux:10) 4.13.4-1.el10_2; ipa-client-common (AlmaLinux:10) 4.13.4-1.el10_2; ipa-client-encrypted-dns (AlmaLinux:10) 4.13.4-1.el10_2 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A privilege escalation flaw was found in FreeIPA. The uniqueness constraint enforced on Kerberos principal name attributes in the 389-ds directory server does not properly account for equivalent representations of the same principal name, allowing a user with sufficient LDAP write privileges to create a service principal that impersonates an existing privileged one. This can lead to unauthorized acquisition of Kerberos service tickets for sensitive services, potentially resulting in full domain compromise.

HighCVSS 8.7 · v3.1—No exploit Fix available
Published
Aug 20, 2026
Updated
Nov 4, 2026
EPSS
0.7% · 56th percentile

Report tools

JSON

Action score

34

Monitor

Low priority for now.

CVSS
34 / 40 · 8.7 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.7%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · redhat
8.7
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
freeipafreeipa
redhatenterprise linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • freeipa freeipa4.12.2
  • redhat enterprise linux10.0
  • redhat enterprise linux7.0
  • redhat enterprise linux8.0
  • redhat enterprise linux9.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • Red Hat Red Hat Enterprise Linux 10

    • 0:4.13.4-1.el10_2 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support

    • 0:4.12.2-15.el10_0.7 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 6

    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support

    • 0:4.6.8-5.el7_9.25 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8

    • 8100020261007071200.143e9e98 and laternot affected · rpm
    • 8100020261007070536.823393f5 and laternot affected · rpm
    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support

    • 8040020261027121250.f153676a and laternot affected · rpm
    • 8040020261027121355.5b01ab7e and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

    • 8040020261027121250.f153676a and laternot affected · rpm
    • 8040020261027121355.5b01ab7e and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support

    • 8060020261008134123.c1533a64 and laternot affected · rpm
    • 8060020261008133528.ada582f1 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On

    • 8060020261008134123.c1533a64 and laternot affected · rpm
    • 8060020261008133528.ada582f1 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service

    • 8080020261007080925.e581a9e4 and laternot affected · rpm
    • 8080020261007071832.b0a6ceea and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions

    • 8080020261007080925.e581a9e4 and laternot affected · rpm
    • 8080020261007071832.b0a6ceea and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 9

    • 0:4.13.4-1.el9_8 and laternot affected · rpm

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:10ipa-clientbefore 4.13.4-1.el10_24.13.4-1.el10_2
AlmaLinux:10ipa-client-commonbefore 4.13.4-1.el10_24.13.4-1.el10_2
AlmaLinux:10ipa-client-encrypted-dnsbefore 4.13.4-1.el10_24.13.4-1.el10_2
AlmaLinux:10ipa-client-epnbefore 4.13.4-1.el10_24.13.4-1.el10_2
AlmaLinux:10ipa-client-sambabefore 4.13.4-1.el10_24.13.4-1.el10_2
AlmaLinux:10ipa-commonbefore 4.13.4-1.el10_24.13.4-1.el10_2
AlmaLinux:10ipa-selinuxbefore 4.13.4-1.el10_24.13.4-1.el10_2
AlmaLinux:10ipa-selinux-lunabefore 4.13.4-1.el10_24.13.4-1.el10_2
AlmaLinux:10ipa-selinux-nfastbefore 4.13.4-1.el10_24.13.4-1.el10_2
AlmaLinux:10ipa-serverbefore 4.13.4-1.el10_24.13.4-1.el10_2
AlmaLinux:10ipa-server-commonbefore 4.13.4-1.el10_24.13.4-1.el10_2
AlmaLinux:10ipa-server-dnsbefore 4.13.4-1.el10_24.13.4-1.el10_2
AlmaLinux:10ipa-server-encrypted-dnsbefore 4.13.4-1.el10_24.13.4-1.el10_2
AlmaLinux:10ipa-server-trust-adbefore 4.13.4-1.el10_24.13.4-1.el10_2
AlmaLinux:10python3-ipaclientbefore 4.13.4-1.el10_24.13.4-1.el10_2
AlmaLinux:10python3-ipalibbefore 4.13.4-1.el10_24.13.4-1.el10_2
AlmaLinux:10python3-ipaserverbefore 4.13.4-1.el10_24.13.4-1.el10_2
AlmaLinux:10python3-ipatestsbefore 4.13.4-1.el10_24.13.4-1.el10_2
AlmaLinux:8bind-dyndb-ldapbefore 11.6-6.module_el8.10.0+3980+d78e8e9011.6-6.module_el8.10.0+3980+d78e8e90
AlmaLinux:8custodiabefore 0.6.0-3.module_el8.6.0+2881+2f24dc920.6.0-3.module_el8.6.0+2881+2f24dc92
AlmaLinux:8ipa-clientbefore 4.9.13-21.module_el8.10.0+4302+2d2000af.34.9.13-21.module_el8.10.0+4302+2d2000af.3
AlmaLinux:8ipa-client-commonbefore 4.9.13-21.module_el8.10.0+4302+2d2000af.34.9.13-21.module_el8.10.0+4302+2d2000af.3
AlmaLinux:8ipa-client-epnbefore 4.9.13-21.module_el8.10.0+4302+2d2000af.34.9.13-21.module_el8.10.0+4302+2d2000af.3
AlmaLinux:8ipa-client-sambabefore 4.9.13-21.module_el8.10.0+4302+2d2000af.34.9.13-21.module_el8.10.0+4302+2d2000af.3

+96

Same product

freeipa: all records

Other highest-scoring records for the same primary product.

  • CVE-2015-5284ipa-kra-install in FreeIPA before 4.2.2 puts the CA agent certificate and private key in /etc/httpd/alias/kra-agent.pem, which is world read
    39Monitor
  • CVE-2019-14867A 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 versions before 4.8.3, in the way th
    37Monitor
  • CVE-2012-5631ipa 3.0 does not properly check server identity before sending credential containing cookies
    36Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2026-19550Aug 11, 2026 · Freeipa: ipa: freeipa: trust-fetch-domains uses trust-read aci to gate a privileged ad trust refresh, allowing unauthorized ldap writes
    32Monitor
  • ← EarlierCVE-2026-11861Aug 20, 2026 · Freeipa: idm: ipa: freeipa: obtaining tgs with impersonating cname through trust relationships
    32Monitor
  • Later →CVE-2026-73196Aug 20, 2026 · Ipa: freeipa: authenticated dos in `otptoken-add` via unbounded otp key decoding/re-encoding
    26Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
almalinux:ipa-client4.13.4-1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:ipa-client-common4.13.4-1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:ipa-client-encrypted-dns4.13.4-1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:ipa-client-epn4.13.4-1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:ipa-client-samba4.13.4-1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:ipa-common4.13.4-1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:ipa-selinux4.13.4-1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:ipa-selinux-luna4.13.4-1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:ipa-selinux-nfast4.13.4-1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:ipa-server4.13.4-1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:ipa-server-common4.13.4-1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:ipa-server-dns4.13.4-1.el9_8 · AlmaLinux:9Package registry (OSV)
red hat:ipa0:4.13.4-1.el9_8 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:ipa-client0:4.13.4-1.el9_8 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:ipa-client-common0:4.13.4-1.el9_8 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:ipa-client-debuginfo0:4.13.4-1.el9_8 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:ipa-client-encrypted-dns0:4.13.4-1.el9_8 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:ipa-client-epn0:4.13.4-1.el9_8 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:ipa-client-samba0:4.13.4-1.el9_8 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:ipa-common0:4.13.4-1.el9_8 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:ipa-debuginfo0:4.13.4-1.el9_8 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:ipa-debugsource0:4.13.4-1.el9_8 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:ipa-selinux0:4.13.4-1.el9_8 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:ipa-selinux-luna0:4.13.4-1.el9_8 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
rocky linux:bind-dyndb-ldap0:11.6-6.module+el8.10.0+1960+1ed527b3 · Rocky Linux:8Package registry (OSV)
rocky linux:custodia0:0.6.0-3.module+el8.9.0+1371+ffa84eb9 · Rocky Linux:8Package registry (OSV)
rocky linux:ipa0:4.13.4-1.el9_8 · Rocky Linux:9Package registry (OSV)
rocky linux:ipa-healthcheck0:0.12-6.module+el8.10.0+2053+a0a9dc19 · Rocky Linux:8Package registry (OSV)
rocky linux:opendnssec0:2.1.7-2.module+el8.10.0+1960+1ed527b3 · Rocky Linux:8Package registry (OSV)
rocky linux:python-jwcrypto0:0.5.0-2.module+el8.10.0+1818+2dfda7a6 · Rocky Linux:8Package registry (OSV)

+6

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • Administrator privileges are required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
none

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Changed
Confidentiality impact
High
Integrity impact
High
Availability impact
None

Weakness class (CWE)

CWE-706 · Use of Incorrectly-Resolved Name or Reference

CVSS vector

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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓
  2. SSVC exploitation— → none

For records you follow, these changes also arrive as notifications. →

References

Show all references (12 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records