CVE-2020-17519: Apache Flink Improper Access Control Vulnerability
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
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.
- Exploitation confirmedCVE-2020-17519Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 100% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2020-17519 | coverage & exploitation status | NVD · CVE.org |
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