CVE-2025-69206

Hemmelig is a messing app with with client-side encryption and self-destructing messages. Prior to version 7.3.3, a Server-Side Request Forgery (SSRF) filter bypass vulnerability exists in the webhook URL validation of the Secret Requests feature. The application attempts to block internal/private IP addresses but can be bypassed using DNS rebinding or open redirect services. This allows an authenticated user to make the server initiate HTTP requests to internal network resources. Version 7.3.3 contains a patch for the issue.

CVSS 3.1

4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 10% of CVEs (scores of 2026-10-25)

CWE

CWE-918

Published

2025-12-29

Modified

2026-10-07

Record from

the NVD, synced 2026-10-19

Affected

• hemmelig:hemmelig

Packages (OSV)

References

• https://github.com/HemmeligOrg/Hemmelig.app/commit/6c909e571d0797ee3bbd2c72e4eb767b57378228
• https://github.com/HemmeligOrg/Hemmelig.app/security/advisories/GHSA-vvxf-wj5w-6gj5
• https://github.com/HemmeligOrg/Hemmelig.app/security/advisories/GHSA-vvxf-wj5w-6gj5

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