CVE-2026-11792— 389-ds-base: 389-ds-base: heap buffer overflow in audit log password masking (create_masked_entry_string)
Quick assessment
Affected
Red Hat Red Hat Directory Server 11
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
389 Directory Server是389 Directory Server开源的一个高度可用、功能齐全、可靠和安全的LDAP服务器实现。 389 Directory Server存在安全漏洞，该漏洞源于启用审计日志时，auditlog.c中的create_masked_entry_string函数将固定长度的密码掩码复制到精确大小的堆缓冲区而未检查可用空间，导致缓冲区溢出，损坏堆内存和审计日志输出。
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege EscalationAffected Version Matrix 8
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Red Hat | Red Hat Directory Server 11 | any |
unaffected |
| Red Hat | Red Hat Directory Server 12 | any |
affected |
| Red Hat | Red Hat Directory Server 13 | any |
affected |
| Red Hat | Red Hat Enterprise Linux 10 | any |
affected |
| Red Hat | Red Hat Enterprise Linux 6 | any |
unaffected |
| Red Hat | Red Hat Enterprise Linux 7 | any |
unaffected |
| Red Hat | Red Hat Enterprise Linux 8 | any |
unaffected |
| Red Hat | Red Hat Enterprise Linux 9 | any |
affected |
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I. Basic Information for CVE-2026-11792
Vulnerability Information
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Vulnerability Title
389-ds-base: 389-ds-base: heap buffer overflow in audit log password masking (create_masked_entry_string)
Source: CVE Program / CVE List V5
Vulnerability Description
A heap buffer overflow flaw was found in 389 Directory Server. When audit logging is enabled, the create_masked_entry_string() function in auditlog.c copies a fixed-length password mask into a precisely-sized heap buffer without checking available space. If a short cleartext password is logged (requiring non-default CLEAR password storage or a compromised replication peer), the copy overflows the buffer, corrupting heap memory and audit log output.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
389 Directory Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
389 Directory Server是389 Directory Server开源的一个高度可用、功能齐全、可靠和安全的LDAP服务器实现。 389 Directory Server存在安全漏洞，该漏洞源于启用审计日志时，auditlog.c中的create_masked_entry_string函数将固定长度的密码掩码复制到精确大小的堆缓冲区而未检查可用空间，导致缓冲区溢出，损坏堆内存和审计日志输出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Red Hat | Red Hat Directory Server 11 | - |
cpe:/a:redhat:directory_server:11
|
|
| Red Hat | Red Hat Directory Server 12 | - |
cpe:/a:redhat:directory_server:12
|
|
| Red Hat | Red Hat Directory Server 13 | - |
cpe:/a:redhat:directory_server:13
|
|
| Red Hat | Red Hat Enterprise Linux 10 | - |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 | - |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 | - |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 | - |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 | - |
cpe:/o:redhat:enterprise_linux:9
|
|
II. Public POCs for CVE-2026-11792
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-11792 (3)
Same Patch Batch · Red Hat · 2026-06-09 · 9 CVEs total
| CVE-2026-11788 | 5.9 MEDIUM | 389-ds-base: 389-ds-base: null pointer dereference in deref control plugin ber parser |
| CVE-2026-11787 | 5.0 MEDIUM | 389-ds-base: 389-ds-base: heap buffer over-read in ldap_utf8prev() via str2simple filter p |
| CVE-2026-11793 | 4.9 MEDIUM | 389-ds-base: 389-ds-base: stack buffer overflow in checkprefix() algorithm id parsing |
| CVE-2026-11790 | 4.9 MEDIUM | 389-ds-base: 389-ds-base: pbkdf2 password storage plugin unbounded iteration count denial |
| CVE-2026-11789 | 4.9 MEDIUM | 389-ds-base: 389-ds-base: smd5 password storage plugin salt length integer underflow crash |
| CVE-2026-52902 | 4.7 MEDIUM | Awxkit: path traversal via yaml !include directive |
| CVE-2026-11785 | 4.3 MEDIUM | 389-ds-base: 389-ds-base: partial stack address information leak via ber_printf type confu |
| CVE-2026-11786 | 1.9 LOW | 389-ds-base: 389-ds-base: heap out-of-bounds read in ldif parser str2entry_state_informati |
IV. Related Vulnerabilities
Same product: Red Hat Directory Server 11
-
CVE-2026-18663
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CVE-2026-16560
389-ds-base: 389-ds-base: heap-buffer-overflow in rdn_av_swa -
CVE-2026-15041
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Same vendor: Red Hat
-
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Oc-mirror: oc-mirror: path traversal / arbitrary file write -
CVE-2026-103242
Rpm: heap-based buffer overflow write in hex2binv() via a mi -
CVE-2026-62146
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Same weakness: CWE-122
V. Comments for CVE-2026-11792
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