CVE-2026-24824 A XSS in yacy/yacy_search_server

Medium 6.9 Published Updated

Cross-site scripting vulnerability in YaCy search server allows attackers to inject malicious scripts into web pages viewed by other users.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-24824?

CVE-2026-24824 is a medium-severity cross-site scripting vulnerability in yacy_search_server, published on 27 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in yacy yacy_search_server (source/net/yacy/http/servlets modules). This vulnerability is associated with program files YaCyDefaultServlet.Java.

This issue affects yacy_search_server.

Weakness: CWE-79

Which versions are affected by CVE-2026-24824?

How do I fix CVE-2026-24824?

No fix has been published for CVE-2026-24824 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-2026-24824 being exploited?

There is no known exploitation of CVE-2026-24824 in the wild and no public exploit code.

Sources

Also known as GHSA-49v6-p72m-p687.

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