CVE-2026-18663
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
389-ds-base: 389-ds-base: pre-authentication double-free in get_ldapmessage_controls_ext() via critical session tracking control
A flaw was found in 389-ds-base. The get_ldapmessage_controls_ext() function frees the parsed controls array on the Session Tracking critical-control rejection path without clearing the SLAPI_REQCONTROLS pblock slot. Operation teardown then frees the same pointer again, causing a double-free. An unauthenticated remote attacker can trigger this with a single BIND request carrying a critical Session Tracking control, resulting in heap corruption and potential denial of service.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Red Hat Directory Server 11
- Vendor
- Red Hat
- Product
- Red Hat Directory Server 11
- Platforms
- Unknown
- Default status
unaffected- Package
- redhat-ds:11/389-ds-base
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Directory Server 12
- Vendor
- Red Hat
- Product
- Red Hat Directory Server 12
- Platforms
- Unknown
- Default status
unaffected- Package
- redhat-ds:12/389-ds-base
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Directory Server 13
- Vendor
- Red Hat
- Product
- Red Hat Directory Server 13
- Platforms
- Unknown
- Default status
affected- Package
- 389-ds-base
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Enterprise Linux 10
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 10
- Platforms
- Unknown
- Default status
affected- Package
- 389-ds-base
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Enterprise Linux 6
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 6
- Platforms
- Unknown
- Default status
unaffected- Package
- 389-ds-base
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Enterprise Linux 7
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 7
- Platforms
- Unknown
- Default status
unaffected- Package
- 389-ds-base
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Enterprise Linux 8
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 8
- Platforms
- Unknown
- Default status
unaffected- Package
- 389-ds:1.4/389-ds-base
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Enterprise Linux 9
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 9
- Platforms
- Unknown
- Default status
unaffected- Package
- 389-ds-base
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.