PT-2026-4899 · Yacy · Yacy Search Server

Titan Team · Published 2026-01-27 · Updated 2026-01-27 · CVE-2026-24824

Positive Technologies (AI Summary)

CVSS v4.0

6.9

Medium

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/AU:Y/R:U/V:D/RE:M/U:Amber

Name of the Vulnerable Software and Affected Versions yacy yacy search server (affected versions not specified)

Description A flaw exists in yacy search server related to improper neutralization of input during web page generation, potentially leading to Cross-site Scripting (XSS). The issue is located within the source/net/yacy/http/servlets modules, specifically in the YaCyDefaultServlet.Java program file.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-24824

Affected Products

Yacy Search Server

References · 5

• https://github.com/yacy/yacy_search_server/pull/722 · Patch
• https://osv.dev/vulnerability/CVE-2026-24824 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-24824 · Security Note
• https://t.me/CVEtracker/43050 · Telegram Post
• https://twitter.com/CVEnew/status/2016081230249209918 · Twitter Post