CVE-2026-23529Network attack vector

File read and SSRF via unchecked credentials

Published Jan 16, 2026 · Updated Jan 16, 2026

Arbitrary file read and SSRF in Aiven Kafka Connect BigQuery Connector before 2.11.0 allow remote authenticated users to access files and URLs. Connector configuration passes externally sourced credential JSON to Google authentication libraries without validating credential_source.file paths or credential_source.url endpoints. Connector-configuration access is required; exploitation exposes files readable by the worker or causes the worker to issue attacker-selected requests.

CVSS severity7.7
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file read and SSRF in Aiven Kafka Connect BigQuery Connector before 2.11.0 allow remote authenticated users to access files and URLs. Connector configuration passes externally sourced credential JSON to Google authentication libraries without validating credential_source.file paths or credential_source.url endpoints. Connector-configuration access is required; exploitation exposes files readable by the worker or causes the worker to issue attacker-selected requests.

The record

CVE
CVE-2026-23529
Published
Jan 16, 2026
Updated
Jan 16, 2026
Vendor
Aiven
Product
Kafka Connect BigQuery Connector
Classifications
CWE-73, CWE-918, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.11.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Aiven · Kafka Connect BigQuery Connectorversion=< 2.11.0

Published CVSS scores

7.7GitHubCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-73External Control of File Name or Path
CWE-918Server-Side Request Forgery (SSRF)
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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