Red Hat Security Advisory: redhat-ds:11 security update
Affects Red Hat redhat-ds:11Source GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 8.8 High.
Data as of 5 Nov 2026, 18:03 UTC
Thin evidence
One scorer or none| CNA (redhat) | CVSS 3.1 | 8.8 |
|---|
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 7 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| 389ds389-ds-base | Affected
| Fixed in– |
GitHub389-ds-basepkg:github/389-ds-baseOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Apply the Red Hat Directory Server 11.9 update that includes the fixed 389-ds-base package version 1.4.3.39-25.module+el8dsrv+24463+e272972e as described in the Red Hat advisory RHSA-2026:36200 and the update instructions at https://access.redhat.com/articles/11258. This update resolves the heap buffer overflow and integer overflow vulnerabilities. No additional mitigation steps are indicated by the vendor.
Description
Red Hat Directory Server 11.9 for RHEL 8 received an important security update addressing two vulnerabilities: a heap buffer overflow in sasl_io_recv() triggered by padded SASL UNBIND, and an integer overflow in SASL packet length that bypasses size limits leading to a heap buffer overflow. These issues affect the 389-ds-base component of the directory server suite. The update fixes these vulnerabilities to prevent potential memory corruption.
References
- access.redhat.com/errata/RHSA-2026:36200 (opens in a new tab)
- docs.redhat.com/en/documentation/red_hat_directory_server/11/html/release_notes/index (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2484414 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2484916 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_36200.json (opens in a new tab)