CVE-2021-31216

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-07-19 · updated 2026-06-17
Weakness: CWE-918

Description

Siren Investigate before 11.1.1 contains a server side request forgery (SSRF) defect in the built-in image proxy route (which is enabled by default). An attacker with access to the Investigate installation can specify an arbitrary URL in the parameters of the image proxy route and fetch external URLs as the Investigate process on the host.

Affected products

Siren Investigate: before 11.1.1 — fixed in 11.1.1

How to fix

Upgrade to a fixed version: Siren Investigate 11.1.1. Check the vendor advisory for mitigations.

References

https://community.siren.io/c/announcements
https://docs.siren.io/siren-platform-user-guide/11.1/release-notes.html
https://community.siren.io/c/announcements
https://docs.siren.io/siren-platform-user-guide/11.1/release-notes.html

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