CVE-2026-34660 Adobe Connect | Incorrect Authorization (CWE-863)

Critical 9.3 Published 12 May 2026 Updated 27 Aug 2026

Attackers can inject scripts via malicious URLs to execute code and take over accounts in Adobe Connect, requiring user interaction.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-34660?

CVE-2026-34660 is a critical missing authorization vulnerability in Adobe Connect, published on 12 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Adobe Connect versions 2025.9.15, 2025.8.157 and earlier are affected by an Incorrect Authorization vulnerability that could result in arbitrary code execution in the context of the current user. An attacker could exploit this vulnerability to inject malicious scripts into a web page, potentially gaining elevated access or control over the victim's account or session. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed.

Weakness: CWE-863

Which versions are affected by CVE-2026-34660?

It affects 1 product.

Products include Adobe Connect Desktop Application.

How do I fix CVE-2026-34660?

No fix has been published for CVE-2026-34660 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-34660 being exploited?

There is no known exploitation of CVE-2026-34660 in the wild and no public exploit code.

Sources

Also known as GHSA-2r54-572f-5p47.