VulnSocial

CVE-2020-17519(apache / flink)

LOWCVSS 7.5 · HIGHCISA KEV

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A change introduced in Apache Flink 1.11.0 (and released in 1.11.1 and 1.11.2 as well) allows attackers to read any file on the local filesystem of the JobManager through the REST interface of the JobManager process. Access is restricted to files accessible by the JobManager process. All users should upgrade to Flink 1.11.3 or 1.12.0 if their Flink instance(s) are exposed. The issue was fixed in commit b561010b0ee741543c3953306037f00d7a9f0801 from apache/flink:master.

apache CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Listed in the CISA Known Exploited Vulnerabilities catalog. Federal remediation due date: 2024-06-13. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Exploit / PoC references
Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-552

Priority

LOW

Exploitation

ACTIVE

PoC

YES

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • flink

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • 1 total mentions across 1 day

Affected systems

Vendors
apache
Products
flink

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-10-29: 110-29
Referenced assets1 URL
Full discourse1 post
  • NewNormal Security@NewScanTeam

    NewNormal Security turns CVEs since the previous batch into new detections, every day. 𝗗𝗮𝗶𝗹𝘆 𝗖𝗩𝗘 𝗥𝗲𝗽𝗼𝗿𝘁 — 29 Oct 2026 𝗔𝗱𝗱𝗲𝗱 to NewScan 𝘁𝗼𝗱𝗮𝘆: 🚨 BI dashboard on the vendor's default signing key, or a metadata store that executes what it holds — forge an admin session, then run code (Apache Superset CVE-2023-27524, CVE-2023-37941) 🚨 Unauthenticated cluster dashboard reading and writing files outside its directory — read its credentials, or write a file anywhere (Apache Flink CVE-2020-17519, CVE-2020-17518) 🔎 Java message broker fingerprinting — now identified from its own login prompt, which is what makes advisories against it matchable (Apache ActiveMQ) Test your stack with NewScan — free, self-hosted: https://newnormalsecurity.com/newscan?utm_source=x&utm_medium=social&utm_campaign=daily-cve #infosec #AppSec #AuthBypass #CSO #REDTEAM

    000003
    6 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appapacheflink---

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