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CVE-2020-17519: Apache Flink Improper Access Control Vulnerability

criticalknown exploitedpublic exploitCVE-2020-17519
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Apache Flink contains an improper access control vulnerability that allows an attacker to read any file on the local filesystem of the JobManager through its REST interface.

CSIRTS triage

What
Apache Flink has an improper access control vulnerability that allows file reading on the local filesystem of the JobManager through its REST interface.
Who is affected
Deployments of Apache Flink are affected by this vulnerability.
Urgency
Remediation is critical as the vulnerability is actively exploited.
Action
Apply the latest security updates for Apache Flink.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2024-05-23
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2020-17519

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2020-17519coverage & exploitation statusNVD · CVE.org

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