CVE-2026-82905Public exploitNetwork attack vector

Authenticated internal-service access via unvalidated MCP URL

Published Aug 31, 2026 · Updated Aug 31, 2026

SSRF in Sdcb Chats 1.12.0 and earlier allows remote authenticated users to reach internal services through the fetch-tools endpoint. FetchMcpTools accepts an arbitrary absolute serverUrl, assigns it directly as the MCP transport endpoint, and forwards custom headers without restricting private or loopback destinations. Any authenticated account can make the server probe internal or localhost services and observe downstream responses or connection errors.

CVSS severityUnavailable
Unscored
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Sdcb Chats 1.12.0 and earlier allows remote authenticated users to reach internal services through the fetch-tools endpoint. FetchMcpTools accepts an arbitrary absolute serverUrl, assigns it directly as the MCP transport endpoint, and forwards custom headers without restricting private or loopback destinations. Any authenticated account can make the server probe internal or localhost services and observe downstream responses or connection errors.

The record

CVE
CVE-2026-82905
Published
Aug 31, 2026
Updated
Aug 31, 2026
Vendor
SDCB
Product
Sdcb Chats
Classifications
CWE-918, CAPEC-664, T1190, T1046
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 31, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 31, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0
  2. Affected versionversion=1.1
  3. Affected versionversion=1.10
  4. Affected versionversion=1.11
  5. Affected versionversion=1.12.0
  6. Affected versionversion=1.2
  7. Affected versionversion=1.3
  8. Affected versionversion=1.4
  9. Affected versionversion=1.5
  10. Affected versionversion=1.6
  11. Affected versionversion=1.7
  12. Affected versionversion=1.8
  13. Affected versionversion=1.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

SDCB · Sdcb Chatsversion=1.0; version=1.1; version=1.10; version=1.11; version=1.12.0; version=1.2; version=1.3; version=1.4; version=1.5; version=1.6; version=1.7; version=1.8; version=1.9

Published CVSS scores

6.5VulDB CNAAV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
6.3VulDB CNACVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
6.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
5.3VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
CAPEC-664Server Side Request Forgery
T1190Exploit Public-Facing Application
T1046Network Service Discovery

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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