Privoce VoceChat Server up to 0.5.36 open_graphic_parse Endpoint src/api/resource.rs open_graph::fetch url server-side request forgery

Summaryinfo

A vulnerability classified as critical has been found in Privoce VoceChat Server up to 0.5.36. This issue affects the function open_graph::fetch of the file src/api/resource.rs of the component open_graphic_parse Endpoint. The manipulation of the argument url leads to server-side request forgery. This vulnerability is listed as CVE-2026-100893. The attack may be initiated remotely. In addition, an exploit is available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Privoce VoceChat Server up to 0.5.36. This issue affects the function open_graph::fetch of the file src/api/resource.rs of the component open_graphic_parse Endpoint. The manipulation of the argument url with an unknown input leads to a server-side request forgery vulnerability. Using CWE to declare the problem leads to CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. Impacted is confidentiality, integrity, and availability.

It is possible to read the advisory at is.yuum.me. The identification of this vulnerability is CVE-2026-100893. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known.

The exploit is available at is.yuum.me. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Chat Software

Vendor

• Privoce

Name

• VoceChat Server

Version

• 0.5.0
• 0.5.1
• 0.5.2
• 0.5.3
• 0.5.4
• 0.5.5
• 0.5.6
• 0.5.7
• 0.5.8
• 0.5.9
• 0.5.10
• 0.5.11
• 0.5.12
• 0.5.13
• 0.5.14
• 0.5.15
• 0.5.16
• 0.5.17
• 0.5.18
• 0.5.19
• 0.5.20
• 0.5.21
• 0.5.22
• 0.5.23
• 0.5.24
• 0.5.25
• 0.5.26
• 0.5.27
• 0.5.28
• 0.5.29
• 0.5.30
• 0.5.31
• 0.5.32
• 0.5.33
• 0.5.34
• 0.5.35
• 0.5.36

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Submitinfo

Accepted

• Submit #917632: Privoce, Inc VoceChat Server <= 0.5.20 Server-Side Request Forgery (by yumeu)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion