CVE-2021-32754: Improper Restriction of XML External Entity Reference in de.tud.sse

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-07-12 · updated 2026-06-17
Weakness: CWE-611

Description

FlowDroid is a data flow analysis tool. FlowDroid versions prior to 2.9.0 contained an XML external entity (XXE) vulnerability that allowed an attacker who had control over the source/sink definition file in XML format to read files from external locations. In order for this to occur, the XML-based format for sources and sinks had to be used and the attacker had to able control the source/sink definition file. The vulnerability was patched in version 2.9.0. As a workaround, do not allow untrusted entities to control the source/sink definition file.

Affected products

secure-software-engineering FlowDroid: before 2.9.0 — fixed in 2.9.0

How to fix

Upgrade to a fixed version: secure-software-engineering FlowDroid 2.9.0. Check the vendor advisory for mitigations.

References

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