CVE-2026-72597
Friendica Friendica - Server-Side Request Forgery
Description
A server-side request forgery vulnerability in Friendica through the 2026.08-dev branch allows authenticated users with a free self-registered account to probe internal network services via the link-preview endpoint. The endpoint fetches any user-supplied URL without applying an internal IP deny list. An attacker can use this to scan the internal network or access cloud metadata services.
INFO
Published Date :
Aug. 11, 2026, 12:17 p.m.
Last Modified :
Oct. 24, 2026, 3:10 p.m.
Remotely Exploit :
No
Source :
309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE |
Solution
- Update Friendica to a version later than 2026.08-dev.
- Configure the link-preview endpoint with an internal IP deny list.
- Validate that user-supplied URLs are properly filtered.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-72597.
| URL | Resource |
|---|---|
| https://github.com/friendica/friendica |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-72597 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-72597
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-72597 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72597 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Oct. 24, 2026
Action Type Old Value New Value Changed Translation Title: Friendica Friendica - Server-Side Request Forgery, Description: Una vulnerabilidad de falsificación de petición del lado del servidor en Friendica a través de la rama 2026.08-dev permite a usuarios autenticados con una cuenta gratuita autorregistrada sondear servicios de red internos a través del endpoint link-preview. El endpoint recupera cualquier URL proporcionada por el usuario sin aplicar una lista de denegación de IP interna. Un atacante puede usar esto para escanear la red interna o acceder a servicios de metadatos en la nube. Title: Friendica Friendica - Server-Side Request Forgery, Description: Una vulnerabilidad de falsificación de petición del lado del servidor en Friendica a través de la rama 2026.08-dev permite a usuarios autenticados con una cuenta gratuita autorregistrada sondear servicios de red internos a través del endpoint link-preview. El endpoint recupera cualquier URL proporcionada por el usuario sin aplicar una lista de denegación de IP interna. Un atacante puede usar esto para escanear la red interna o acceder a servicios de metadatos en la nube. -
CVE Translated by [email protected]
Oct. 23, 2026
Action Type Old Value New Value Added Translation Title: Friendica Friendica - Server-Side Request Forgery, Description: Una vulnerabilidad de falsificación de petición del lado del servidor en Friendica a través de la rama 2026.08-dev permite a usuarios autenticados con una cuenta gratuita autorregistrada sondear servicios de red internos a través del endpoint link-preview. El endpoint recupera cualquier URL proporcionada por el usuario sin aplicar una lista de denegación de IP interna. Un atacante puede usar esto para escanear la red interna o acceder a servicios de metadatos en la nube. -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 11, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-72597', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-11T12:14:06.344377Z'} -
New CVE Received by 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
Aug. 11, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Friendica', 'product': 'Friendica', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'custom', 'lessThanOrEqual': '2026.08-dev'}]}] Added Description A server-side request forgery vulnerability in Friendica through the 2026.08-dev branch allows authenticated users with a free self-registered account to probe internal network services via the link-preview endpoint. The endpoint fetches any user-supplied URL without applying an internal IP deny list. An attacker can use this to scan the internal network or access cloud metadata services. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Added CWE CWE-918 Added Reference https://github.com/friendica/friendica