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CVE Record

CVE-2026-24308: Apache ZooKeeper: Sensitive information disclosure in client configuration handling

Improper handling of configuration values in ZKConfig in Apache ZooKeeper 3.8.5 and 3.9.4 on all platforms allows an attacker to expose sensitive information stored in client configuration in the client's logfile. Configuration values are exposed at INFO level logging rendering potential production systems affected by the issue. Users are recommended to upgrade to version 3.8.6 or 3.9.5 which fixes this issue.

MediumCVSS 6.5Not KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

Apache ZooKeeper client configuration can write sensitive values into client logfiles at INFO level. The main business risk is credential or secret exposure through normal production logs. Apache recommends upgrading affected 3.8.5 and 3.9.4 deployments to fixed releases 3.8.6 or 3.9.5. Organizations using Apache ZooKeeper client library org.apache.zookeeper:zookeeper, especially versions 3.8.5 or 3.9.4, may be exposed if client logs are retained, centralized, or readable by users or services beyond the application owner. Treat this as a moderate confidentiality issue. Prioritize systems where ZooKeeper client logs are broadly accessible, shipped to shared logging platforms, or may contain credentials used by production services. Mitigation focus: Upgrade Apache ZooKeeper 3.8.5 to 3.8.6.; Upgrade Apache ZooKeeper 3.9.4 to 3.9.5.; Restrict access to ZooKeeper client logs and centralized logging stores..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-117: Exact CWE lookup

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cwe · low confidence lookup

CWE-532: Exact CWE lookup

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cve · low confidence lookup

CVE-2026-24308 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

2CVSS vectors
5Timeline events
3ADP providers
10Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

2 official scores

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.5CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N2.83.6CISA-ADP
3.3CVSS 3.1LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N1.81.4redhat-SADP

Vulnerability scoring details

Base CVSS 3.1 score

6.5Medium
CVSS 3.1 vector shape for CVE-2026-24308Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. ADP timelineredhat-SADP

    Made public.

  3. CVE publishedCVE Program

    The CVE record was published.

  4. ADP timelineredhat-SADP

    Reported to Red Hat.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CVECVE Program Container
CISA-ADPCISA ADP Vulnrichment
cvssV3_1other:ssvc
redhat-SADPApache ZooKeeper: Apache ZooKeeper: Information disclosure via improper handling of configuration values
other:Red Hat severity ratingcvssV3_1
  • 2026-03-07T09:01:03.859Z: Reported to Red Hat.
  • 2026-03-07T08:51:17.567Z: Made public.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Apache Software FoundationApache ZooKeeperorg.apache.zookeeper:zookeeper, 3.9.0, 3.8.0unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-117 · source CWE mapping

Improper Output Neutralization for Logs

Improper Output Neutralization for Logs represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

CWE-532 · source CWE mapping

Insertion of Sensitive Information into Log File

Insertion of Sensitive Information into Log File represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.