---
id: "CVE-2026-121356"
page: "https://infrastack.ai/live/CVE-2026-121356"
kind: "vulnerability"
aliases: ["CVE-2026-121356"]
title: "Adobe Connect: server-side request forgery lets attackers escalate privileges"
severity: "critical"
cvss: 10.0
epss: null
exploited: false
status: "open"
category: "vendor"
products: [{"name": "Adobe Connect", "fixed": ["12.12.a", "12.11.i", "12.10.f", "12.9.a", "12.8.a"], "affected": "<= 12.12 (Windows)", "ecosystem": "vendor"}]
ecosystems: []
tags: ["adobe-connect", "self-hosted", "ssrf", "vendor", "windows"]
not_affected_if: []
published_at: "2026-11-10T22:18:25+00:00"
first_seen_at: "2026-11-10T22:27:26+00:00"
updated_at: "2026-11-10T22:33:41+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-121356", "first_seen_at": "2026-11-10T22:27:26+00:00"}, {"source": "analyst", "url": "https://www.adobe.com/trust/security/products/connect/apsb26-191.html", "first_seen_at": "2026-11-10T22:33:41+00:00", "cites": ["https://www.adobe.com/trust/security/products/connect/apsb26-191.html", "https://helpx.adobe.com/adobe-connect/kb/connect-on-prem-patches.html"]}]
exploit_sources: []
---

# Adobe Connect: server-side request forgery lets attackers escalate privileges

Link for people: https://infrastack.ai/live/CVE-2026-121356 (this .md is for agents)

Adobe Connect has a server-side request forgery flaw that lets an attacker make the server send requests on their behalf. The sources say this can lead to privilege escalation and needs no user interaction.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Adobe Connect affected <= 12.12 (Windows) fixed 12.12.a, 12.11.i, 12.10.f, 12.9.a, 12.8.a

## How to check

Check your Adobe Connect server version in the admin console/about page. If you run Adobe Connect 12.12 or earlier on Windows without the patch levels 12.12.a / 12.11.i / 12.10.f / 12.9.a / 12.8.a, you are exposed.

## Fix

Install the Adobe Connect patch for your branch: 12.12.a, 12.11.i, 12.10.f, 12.9.a or 12.8.a (Windows, on-prem patch files on Adobe's patch page). Hosted services are upgraded by Adobe.

## Timeline

- 2026-11-10T22:27:26+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-121356
- 2026-11-10T22:33:41+00:00 analyst https://www.adobe.com/trust/security/products/connect/apsb26-191.html — Read Adobe APSB26-191 (Nov 10 2026): SSRF CWE-918, CVSS 10.0 unauthenticated; Adobe not aware of exploits. Affected Connect 12.12 and earlier on Windows; fixed in patch builds. Not read: exact install steps.

## Documents

- [advisory] APSB26-191 Security update available for Adobe Connect https://www.adobe.com/trust/security/products/connect/apsb26-191.html
- [fix] Find on-premise patch files for Adobe Connect 9-12 https://helpx.adobe.com/adobe-connect/kb/connect-on-prem-patches.html

## From the sources

Adobe Connect is affected by a Server-Side Request Forgery (SSRF) vulnerability that could result in privilege escalation. Exploitation of this issue does not require user interaction. Scope is changed.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_