CVE-2026-18651
CVE-2026-18651: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium5.4
Medium [CVE-2026-18651] SASL PLAIN bind installs connection credentials before account-lock check, allowing continued access as a locked account
CVE-2026-18651Source published Source updated
A flaw was found in 389 Directory Server. During SASL PLAIN authentication, the server installs connection-level bind credentials before performing the account-lock check. If the account is subsequently found to be locked, the bind is reported as failed to the client, but the already-installed authenticated state on the connection is not reverted. A client that supplies valid credentials for an account that has been administratively locked can continue to use the same connection with that account's privileges, defeating account lock as an access-revocation control. This flaw lets a user authenticate to an already-locked account (nsAccountLock: true) via SASL PLAIN, using that account's own correct password. The server checks the password before it checks the lock, so the connection…
- Affected products in this advisory
- Red Hat Directory Server 11
- Red Hat Directory Server 12
- Red Hat Directory Server 13
- Red Hat Enterprise Linux 10
4 more entries in the full advisory.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- When locking an account, also rotate its LDAP password. Locking the account alone is not enough: this flaw lets a bind with the account's still-valid password succeed even after it's locked.
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