ADOBE CONNECT · CVE-2026-121353 · Vendor
FIX → 12.12.a +4 ✓ verified
Adobe's APSB26-191 (Nov 10, 2026) fixes a critical CRLF injection (CWE-93) in Adobe Connect, CVE-2026-121353, CVSS 10.0 (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N). Adobe lists the impact as privilege escalation and the attacker needs no account. Adobe says it is not aware of exploits in the wild.
first public Nov 10, 2026 · 2 sources
Could this affect your app?
Free first check from your website. Connect your repo for the full answer.
Teams running self-hosted Adobe Connect on Windows, version 12.12 or earlier, per APSB26-191. Adobe's vector is network, no privileges, no user interaction, so any reachable Connect server is in scope. The bulletin does not say whether Adobe-hosted Connect needed action.
Not affected if managed-hosting
Who cares adobe-connect, crlf-injection, self-hosted, windows
Adobe Connect is affected by an Improper Neutralization of CRLF Sequences ('CRLF Injection') vulnerability that could result in arbitrary code execution in the context of the current user, potentially gaining elevated access or control over the victim's account or session. Exploitation of this issue does not require user interaction. Scope is changed.
This page as .md · .json · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.
Check it with your coding agent
It reads this page and tells you if your code is affected.
Are you affected?
Ask from here. InfraStack checks the affected versions against your stack and answers in your inbox.
InfraStack checks the affected versions against your stack and answers in Slack, with the evidence and the fix.
Upgrade to 12.12.a +4
Install the Adobe Connect update for your branch on Windows: 12.12.a, 12.11.i, 12.10.f, 12.9.a or 12.8.a, per APSB26-191.