CVE-2026-13097

CRITICALPre-NVD 8.79.1▲
EchelonGraph scoreHIGH 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 — 3 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%CVSS: 8.7Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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
9.1(high)
EG Risk
41(Track)
EG Risk 41/100SSVC: Track

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%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

August 20, 2026

Last Modified

September 8, 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.

Affected Packages

(2 across 2 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
freeipa4.10.1+dfsg1-1+exp1 ... 4.9.11-2 (19 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
freeipa4.12.4-1, 4.12.4-2, 4.13.1-1——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 49× in last 7d / 221× 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 221 total refreshes for this CVE.

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

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 in the National Vulnerability Database on August 20, 2026, with the most recent update on September 8, 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% probability of exploitation in the next 30 days, which ranks it in the top 80.1% of all scored CVEs.
What is the CVSS score of CVE-2026-13097?
CVE-2026-13097 has a CVSS v3 base score of 8.7 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.1.
How do I remediate CVE-2026-13097?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13097, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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