CVE-2023-47116

Public Exploit
Label Studio SSRF on Import Bypassing `SSRF_PROTECTION_ENABLED` Protections

Description

Label Studio is a popular open source data labeling tool. The vulnerability affects all versions of Label Studio prior to 1.11.0 and was tested on version 1.8.2. Label Studio's SSRF protections that can be enabled by setting the `SSRF_PROTECTION_ENABLED` environment variable can be bypassed to access internal web servers. This is because the current SSRF validation is done by executing a single DNS lookup to verify that the IP address is not in an excluded subnet range. This protection can be bypassed by either using HTTP redirection or performing a DNS rebinding attack.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.15%
Third-Party Advisory github.com
Affected: HumanSignal label-studio
Published at:
Updated at:

References

Link Tags
https://github.com/HumanSignal/label-studio/security/advisories/GHSA-p59w-9gqw-wj8r third party advisory exploit
https://github.com/HumanSignal/label-studio/commit/55dd6af4716b92f2bb213fe461d1ffbc380c6a64 patch
https://github.com/HumanSignal/label-studio/releases/tag/1.11.0 release notes

Frequently Asked Questions

What is the severity of CVE-2023-47116?
CVE-2023-47116 has been scored as a medium severity vulnerability.
How to fix CVE-2023-47116?
To fix CVE-2023-47116, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-47116 being actively exploited in the wild?
It is possible that CVE-2023-47116 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-47116?
CVE-2023-47116 affects HumanSignal label-studio.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.