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Vulnerabilities

Vulnerability · CVE-2019-13565

An issue was discovered in OpenLDAP 2.x before 2.4.48.

Published Jul 26, 2019 · catalog updated Oct 14, 2026 · An issue was discovered

Check if you run it

No confirmed exploitation is on record for CVE-2019-13565. EPSS is 5.01%. Act only if a listed version of An issue was discovered is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (An issue was discovered).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
5.01%
Remediation
Advisory link
Affected products
cpe apple/mac os x · cpe canonical/ubuntu linux · cpe debian/debian linux · cpe f5/traffix signaling delivery controller · cpe openldap/openldap · cpe opensuse/leap

An issue was discovered in OpenLDAP 2.x before 2.4.48. When using SASL authentication and session encryption, and relying on the SASL security layers in slapd access controls, it is possible to obtain access that would otherwise be denied via a simple bind for any identity covered in those ACLs. After the first SASL bind is completed, the sasl_ssf value is retained for all new non-SASL connections. Depending on the ACL configuration, this can affect different types of operations (searches, modifications, etc.). In other words, a successful authorization step completed by one user affects the authorization requirement for a different user.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe apple/mac os xversion unspecified
  • cpe canonical/ubuntu linux12.04
  • cpe canonical/ubuntu linux14.04
  • cpe canonical/ubuntu linux16.04
  • cpe canonical/ubuntu linux18.04
  • cpe canonical/ubuntu linux19.04
  • cpe debian/debian linux8.0
  • cpe f5/traffix signaling delivery controller5.0.0
  • cpe openldap/openldapversion unspecified
  • cpe opensuse/leap15.0
  • cpe oracle/blockchain platformversion unspecified

How to fix CVE-2019-13565

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2019-13565. EPSS is 5.01%. Act only if a listed version of An issue was discovered is installed.

Which versions are affected?

Compare what you have installed with canonical/ubuntu linux 12.04; canonical/ubuntu linux 14.04; canonical/ubuntu linux 16.04; canonical/ubuntu linux 18.04. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 5.01%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 26, 2019 · NIST NVD

    Detected

    An issue was discovered in OpenLDAP 2.x before 2.4.48. When using SASL authentication and session encryption, and relying on the SASL security layers in slapd access controls, it is possible to obtain access that would otherwise be denied via a simple bind for any identity covered in those ACLs. After the first SASL bind is completed, the sasl_ssf value is retained for all new non-SASL connections

  2. Oct 14, 2026 · NIST NVD

    Updated

    An issue was discovered in OpenLDAP 2.x before 2.4.48. When using SASL authentication and session encryption, and relying on the SASL security layers in slapd access controls, it is possible to obtain access that would otherwise be denied via a simple bind for any identity covered in those ACLs. After the first SASL bind is completed, the sasl_ssf value is retained for all new non-SASL connections

Sources

  • CVE.orgVulnerability recordCVE-2019-13565

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2019-13565

    30-day exploitation probability 5.0%

    first.org
  • NIST NVDVulnerability recordCVE-2019-13565

    An issue was discovered in OpenLDAP 2.x before 2.4.48. When using SASL authentication and session encryption, and relying on the SASL security layers in slapd access controls, it is possible to obtain access that would otherwise be denied via a simple bind for any identity covere

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 16, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.