CVE detail
CVE-2026-18663
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.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 11.0 · diversity 6.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 2
- within the 30d window
- Peak daily
- 2
- highest bucket
Evidence
Source links by recency
2 source links · newest first
- https://bugzilla.redhat.com/show_bug.cgi?id=2510631bugzilla.redhat.com
No excerpt available.
Exploitbugzilla.redhat.comAug 12, 2026, 10:17 AM - https://access.redhat.com/security/cve/CVE-2026-18663access.redhat.com
No excerpt available.
Exploitaccess.redhat.comAug 12, 2026, 10:17 AM
Exploit code
Public exploit repository references
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0 repository references · best confidence N/A · max 0 stars
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