CVE-2026-13097

CRITICALPre-NVD 8.79.1▲
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-20. A secondary CVSS source baseline 8.7; sources differ by 0.4.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 8.7Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
8.7
EG Score
9.1CRITICALmedium confidence
EG Risk
41
EG Risk 41/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity91% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
34th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 20, 2026

Last Modified

September 28, 2026

Advisory Details (2)

Auto-updated Aug 20, 2026
Patch available. Sources: redhat.
redhat

2515974 – (CVE-2026-13097) CVE-2026-13097 ipa: Privilege escalation via krbCanonicalName manipulation due to realm-unaware uniqueness enforcement in FreeIPA LDAP datastore

https://bugzilla.redhat.com/show_bug.cgi?id=2515974
redhat Patch Available

CVE-2026-13097 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-13097

Vendor Advisories for CVE-2026-13097(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(2)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatipa-0:4.13.4-1.el10_22026-09-28redhat
redhatipa-0:4.13.4-1.el9_82026-09-24redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(2 across 2 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
freeipa4.10.1+dfsg1-1+exp1 ... 4.9.11-2 (19 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
freeipa4.12.4-1, 4.12.4-2, 4.13.1-1
  • every version on: no fix on record
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(2)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 68× in last 7d / 240× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 364 total refreshes for this CVE.

  1. 2026-10-05 14:38 UTCVendor advisory
  2. 2026-10-05 14:38 UTCGHSA enrichment
  3. 2026-10-05 10:20 UTCVendor advisory
  4. 2026-10-05 10:20 UTCGHSA enrichment
  5. 2026-10-05 06:01 UTCVendor advisory
  6. 2026-10-05 06:01 UTCGHSA enrichment
  7. 2026-10-05 01:42 UTCEG score recompute
  8. 2026-10-05 01:42 UTCVendor advisory
  9. 2026-10-05 01:42 UTCGHSA enrichment
  10. 2026-10-04 23:21 UTCEPSS rescore
  11. 2026-10-04 21:20 UTCVendor advisory
  12. 2026-10-04 21:20 UTCGHSA enrichment
  13. 2026-10-04 15:41 UTCVendor advisory
  14. 2026-10-04 15:41 UTCGHSA enrichment
  15. 2026-10-04 11:17 UTCVendor advisory
  16. 2026-10-04 11:17 UTCGHSA enrichment
  17. 2026-10-04 06:57 UTCVendor advisory
  18. 2026-10-04 06:57 UTCGHSA enrichment
  19. 2026-10-04 02:39 UTCVendor advisory
  20. 2026-10-04 02:39 UTCGHSA enrichment
  21. 2026-10-03 21:09 UTCVendor advisory
  22. 2026-10-03 21:09 UTCGHSA enrichment
  23. 2026-10-03 16:50 UTCEG score recompute
  24. 2026-10-03 16:50 UTCVendor advisory
  25. 2026-10-03 16:50 UTCGHSA enrichment
Show 75 more
  1. 2026-10-03 14:25 UTCEPSS rescore
  2. 2026-10-03 05:11 UTCVendor advisory
  3. 2026-10-03 05:11 UTCGHSA enrichment
  4. 2026-10-03 00:40 UTCVendor advisory
  5. 2026-10-03 00:40 UTCGHSA enrichment
  6. 2026-10-02 19:57 UTCEG score recompute
  7. 2026-10-02 19:57 UTCVendor advisory
  8. 2026-10-02 19:57 UTCGHSA enrichment
  9. 2026-10-02 15:38 UTCVendor advisory
  10. 2026-10-02 15:38 UTCGHSA enrichment
  11. 2026-10-02 11:09 UTCVendor advisory
  12. 2026-10-02 11:09 UTCGHSA enrichment
  13. 2026-10-02 06:50 UTCVendor advisory
  14. 2026-10-02 06:50 UTCGHSA enrichment
  15. 2026-10-02 01:56 UTCVendor advisory
  16. 2026-10-02 01:56 UTCGHSA enrichment
  17. 2026-10-01 21:33 UTCEG score recompute
  18. 2026-10-01 21:33 UTCVendor advisory
  19. 2026-10-01 21:33 UTCGHSA enrichment
  20. 2026-10-01 19:49 UTCEPSS rescore
  21. 2026-10-01 14:19 UTCVendor advisory
  22. 2026-10-01 14:19 UTCGHSA enrichment
  23. 2026-10-01 10:00 UTCVendor advisory
  24. 2026-10-01 10:00 UTCGHSA enrichment
  25. 2026-10-01 05:42 UTCVendor advisory
  26. 2026-10-01 05:42 UTCGHSA enrichment
  27. 2026-10-01 01:21 UTCVendor advisory
  28. 2026-10-01 01:21 UTCGHSA enrichment
  29. 2026-09-30 20:32 UTCEG score recompute
  30. 2026-09-30 20:32 UTCVendor advisory
  31. 2026-09-30 20:32 UTCGHSA enrichment
  32. 2026-09-30 15:02 UTCEPSS rescore
  33. 2026-09-30 08:25 UTCEG score recompute
  34. 2026-09-30 08:25 UTCVendor advisory
  35. 2026-09-30 08:25 UTCGHSA enrichment
  36. 2026-09-29 15:20 UTCEPSS rescore
  37. 2026-09-29 06:19 UTCVendor advisory
  38. 2026-09-29 06:19 UTCGHSA enrichment
  39. 2026-09-29 02:00 UTCVendor advisory
  40. 2026-09-29 02:00 UTCGHSA enrichment
  41. 2026-09-28 21:39 UTCEG score recompute
  42. 2026-09-28 21:39 UTCVendor advisory
  43. 2026-09-28 21:39 UTCGHSA enrichment
  44. 2026-09-28 15:00 UTCEG score recompute
  45. 2026-09-28 15:00 UTCVendor advisory
  46. 2026-09-28 15:00 UTCGHSA enrichment
  47. 2026-09-28 13:50 UTCEPSS rescore
  48. 2026-09-28 10:38 UTCEG score recompute
  49. 2026-09-28 10:38 UTCVendor advisory
  50. 2026-09-28 10:38 UTCGHSA enrichment
  51. 2026-09-28 09:42 UTCEG score recompute
  52. 2026-09-28 09:42 UTCVendor advisory
  53. 2026-09-28 09:42 UTCGHSA enrichment
  54. 2026-09-28 05:27 UTCVendor advisory
  55. 2026-09-28 05:27 UTCGHSA enrichment
  56. 2026-09-28 01:08 UTCVendor advisory
  57. 2026-09-28 01:08 UTCGHSA enrichment
  58. 2026-09-27 20:49 UTCVendor advisory
  59. 2026-09-27 20:49 UTCGHSA enrichment
  60. 2026-09-27 16:29 UTCEG score recompute
  61. 2026-09-27 16:29 UTCVendor advisory
  62. 2026-09-27 16:28 UTCGHSA enrichment
  63. 2026-09-27 12:10 UTCVendor advisory
  64. 2026-09-27 12:10 UTCGHSA enrichment
  65. 2026-09-27 07:46 UTCVendor advisory
  66. 2026-09-27 07:46 UTCGHSA enrichment
  67. 2026-09-27 03:27 UTCEG score recompute
  68. 2026-09-27 03:27 UTCVendor advisory
  69. 2026-09-27 03:27 UTCGHSA enrichment
  70. 2026-09-26 15:58 UTCEPSS rescore
  71. 2026-09-25 09:22 UTCVendor advisory
  72. 2026-09-25 09:22 UTCGHSA enrichment
  73. 2026-09-25 05:03 UTCVendor advisory
  74. 2026-09-25 05:03 UTCGHSA enrichment
  75. 2026-09-25 00:45 UTCVendor advisory

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-13097?
CVE-2026-13097 is a critical vulnerability published on August 20, 2026. 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…
When was CVE-2026-13097 disclosed?
CVE-2026-13097 was first published on August 20, 2026, with the most recent update on September 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13097 actively exploited?
CVE-2026-13097 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (34th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-13097?
CVE-2026-13097 has a CVSS base score of 8.7 (a secondary CVSS source that NVD displays; NVD's own analysis pending). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.1 (CRITICAL).
How do I remediate CVE-2026-13097?
A fix for CVE-2026-13097 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-13097 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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