CVE-2026-58222

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-30. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: None knownExposed: 0

A fix is available — apply it.

A security flaw combining LDAP filter injection and improper authorization checks was found in Samba Active Directory Domain Controller (AD DC). When processing LDAP Compare requests, Samba fails to properly validate user-supplied attribute names and executes the resulting internal database search in a trusted context, bypassing normal Access Control List (ACL) enforcement. An authenticated low-privilege domain user can exploit these flaws to disclose confidential Active Directory attributes that would normally be inaccessible. The disclosed information may be leveraged to derive sensitive authentication material, potentially leading to privilege escalation and complete domain compromise. For example: In deployments configured with Group Managed Service Accounts (gMSAs), an attacker can extract the "msKds-RootKeyData" attribute and derive gMSA passwords offline, potentially leading to complete domain compromise if privileged gMSAs are present.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity88% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
55%
KEV
Not listed

Published

July 30, 2026

Last Modified

July 30, 2026

Advisory Details (4)

Auto-updated Jul 30, 2026
Patch available. Sources: redhat.
generic

Samba - Security Announcement Archive

https://www.samba.org/samba/security/CVE-2026-58222.html
generic

16148 – (CVE-2026-58222) [SECURITY] CVE-2026-58222: LDAP Compare filter injection and trusted-request confusion disclose protected attributes

https://bugzilla.samba.org/show_bug.cgi?id=16148
redhat

2502722 – (CVE-2026-58222) CVE-2026-58222 samba: Samba AD LDAP Compare filter injection and trusted-request confusion disclose protected attributes

https://bugzilla.redhat.com/show_bug.cgi?id=2502722
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-58222

Vendor Advisories for CVE-2026-58222(1)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuwinbind (2:4.23.6+dfsg-1ubuntu2.2) @ resolute2026-08-21ubuntu

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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
samba2:4.13.13+dfsg-1 ... 2:4.24.5+dfsg-1~bpo13+1 (245 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
samba2:4.17.10+dfsg-0+deb12u1 ... 2:4.24.5+dfsg-1~bpo13+1 (173 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
samba2:4.22.10+dfsg-0+deb13u1 ... 2:4.22.8+dfsg-0+deb13u2 (9 versions)2:4.22.10+dfsg-0+deb13u2—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
samba2:4.22.3+dfsg-4 ... 2:4.24.5+dfsg-1~bpo13+1 (34 versions)2:4.24.5+dfsg-1—

Weakness Classification(1)

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

All Vendor Advisories

(1)

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 45× in last 7d / 133× 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 133 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-58222?
CVE-2026-58222 is a high vulnerability published on July 30, 2026. A security flaw combining LDAP filter injection and improper authorization checks was found in Samba Active Directory Domain Controller (AD DC). When processing LDAP Compare requests, Samba fails to properly validate user-supplied attribute names and executes the resulting internal database search…
When was CVE-2026-58222 disclosed?
CVE-2026-58222 was first published in the National Vulnerability Database on July 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58222 actively exploited?
CVE-2026-58222 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 44.9% of all scored CVEs.
What is the CVSS score of CVE-2026-58222?
CVE-2026-58222 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-58222?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-58222, 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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