CVE-2026-18922

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-07. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in 389 Directory Server. During SASL PLAIN authentication, a stale identity carried in a Cyrus SASL auxiliary property from a prior failed bind attempt can be installed on a connection following a subsequent, unrelated successful bind, regardless of which SASL mechanism completes that second bind. An attacker can send a SASL PLAIN bind as cn=Directory Manager with an incorrect password, then complete a SASL ANONYMOUS bind on the same connection, causing the server to grant Directory Manager authority without any valid credentials. A variant using a valid low-privileged account's own successful bind instead of an anonymous one is also possible.

CVSS v3
9.8
EG Score
9.8(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
Severity98% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
45%
KEV
Not listed

Published

September 7, 2026

Last Modified

September 8, 2026

Advisory Details (15)

Auto-updated Sep 16, 2026
Patch available. Sources: redhat.
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support

https://access.redhat.com/errata/RHSA-2026:64789
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2026:64785
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2026:64784
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.6 Extended Update Support.

https://access.redhat.com/errata/RHSA-2026:64783
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions.

https://access.redhat.com/errata/RHSA-2026:64781
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:64780
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:64779
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.

https://access.redhat.com/errata/RHSA-2026:64778
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Serv

https://access.redhat.com/errata/RHSA-2026:64776
redhat Patch Available

Affected: Red Hat Enterprise Linux 7 Extended Lifecycle Support.

https://access.redhat.com/errata/RHSA-2026:64771
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:64792
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:64791
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.0 Extended Update Support.

https://access.redhat.com/errata/RHSA-2026:64804
redhat Patch Available

CVE-2026-18922 - 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-2026-18922
redhat Patch Available

2511388 – (CVE-2026-18922) CVE-2026-18922 389-ds-base: 389-ds-base: SASL PLAIN authentication allows privilege escalation to Directory Manager via stale identity in Cyrus SASL auxiliary property

Affected: Red Hat Enterprise Linux 7 Extended Lifecycle Support

https://bugzilla.redhat.com/show_bug.cgi?id=2511388

Vendor Advisories for CVE-2026-18922(16)

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

Patch Availability(16)

Vendor / EcosystemFixed in / PatchReleasedSource
redhat389-ds-base-0:3.2.0-10.el10_22026-09-08redhat
redhat389-ds-base-0:3.0.6-21.el10_02026-09-08redhat
redhat389-ds-base-0:2.2.4-22.el9_22026-09-08redhat
redhat389-ds-base-0:2.4.5-29.el9_42026-09-08redhat
redhatredhat-ds:11-8100020260904171440.37ed7c032026-09-08redhat
redhat389-ds-base-0:1.2.11.15-97.el6_10.12026-09-08redhat
redhat389-ds:1.4-8040020260901171549.96015a922026-09-08redhat
redhat389-ds:1.4-8060020260901145727.824efc522026-09-08redhat
redhat389-ds:1.4-8080020260831180218.6dbb38032026-09-08redhat
redhatredhat-ds:11-8080020260903102346.f969626e2026-09-08redhat
redhatredhat-ds:12-9020020260903155914.1674d5742026-09-08redhat
redhatredhat-ds:12-9040020260903102623.1674d5742026-09-08redhat
redhat389-ds-base-0:1.3.11.1-15.el7_92026-09-08redhat
redhat389-ds-base-0:2.8.0-10.el9_82026-09-08redhat
redhat389-ds-base-0:2.6.1-24.el9_62026-09-08redhat
redhat389-ds:1.4-8100020260904155442.25e700aa2026-09-08redhat

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 rangeFixed inDependents
389-ds-base2.3.1+dfsg1-1 ... 3.3.0-2 (16 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
389-ds-base3.1.2+dfsg1-1 ... 3.3.0-2 (6 versions)——

Weakness Classification(1)

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

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 94× in last 7d / 176× 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 176 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-18922?
CVE-2026-18922 is a critical vulnerability published on September 7, 2026. A flaw was found in 389 Directory Server. During SASL PLAIN authentication, a stale identity carried in a Cyrus SASL auxiliary property from a prior failed bind attempt can be installed on a connection following a subsequent, unrelated successful bind, regardless of which SASL mechanism completes…
When was CVE-2026-18922 disclosed?
CVE-2026-18922 was first published in the National Vulnerability Database on September 7, 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-2026-18922 actively exploited?
CVE-2026-18922 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 54.6% of all scored CVEs.
What is the CVSS score of CVE-2026-18922?
CVE-2026-18922 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-18922?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18922, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-18922

Explore →

Is Your Infrastructure Affected by CVE-2026-18922?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs