CVE-2026-1696 Missing security HTTP headers

Low 2.3 Published Updated

Missing HTTP security headers in PcVue web server responses allow attackers to bypass browser security protections, potentially facilitating cross-site scripting attacks.

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-2026-1696?

CVE-2026-1696 is a low-severity cross-site scripting vulnerability in arcinfo PcVue, published on 26 Feb 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

Some HTTP security headers are not properly set by the web server when sending responses to the client application.

Weakness: CWE-79

Which versions are affected by CVE-2026-1696?

It affects 1 product.

Products include Arcinfo Pcvue.

How do I fix CVE-2026-1696?

No fix has been published for CVE-2026-1696 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2026-1696 being exploited?

There is no known exploitation of CVE-2026-1696 in the wild and no public exploit code.

Sources

Also known as GHSA-4r52-fgmg-vqxc.

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