CVE-2021-31216

Name: CVE-2021-31216
Creator: NVD / NIST
Published: 2021-07-19T13:15:08.46+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 0.72%

Last modified Jun 17, 2026

CVE-2021-31216 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. 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.. EPSS estimates a 0.72% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.1/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS Probability

0.72%

49.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-918

Affected Software

Vendor	Product	Versions
Siren	Investigate	< 11.1.1

References

https://community.siren.io/c/announcementsRelease Notes, Vendor Advisory
https://docs.siren.io/siren-platform-user-guide/11.1/release-notes.htmlPatch, Release Notes, Vendor Advisory
https://community.siren.io/c/announcementsRelease Notes, Vendor Advisory
https://docs.siren.io/siren-platform-user-guide/11.1/release-notes.htmlPatch, Release Notes, Vendor Advisory

Timeline

Published: Jul 19, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-31216?

How severe is CVE-2021-31216?

CVE-2021-31216 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.72% probability of exploitation in the next 30 days.

How do I fix CVE-2021-31216?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-31216?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST