What is CVE-2026-39379?

CVE-2026-39379 is a high-severity vulnerability in Geonetwork Core-Geonetwork, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2026-11-03.

How severe is CVE-2026-39379?

High severity. CVSS v3 base score is 7.1 out of 10.

XSS in Geonetwork Core-Geonetwork

CVE-2026-39379

GeoNetwork is a catalog application to manage spatially referenced resources. From 3.0.0 until 4.2.15 and 4.4.10, requesting a nonexistent or unauthorized service URL can cause an error page to reflect attacker-controlled request content inside an AngularJS application without adequately neutralizing it for template evaluation. A remote attacker can induce a victim, including an administrator, to open a crafted link so the reflected value is evaluated as an AngularJS template expression. Combined with known AngularJS sandbox-escape techniques, this can execute arbitrary JavaScript in the victim's authenticated browser session, disclose information, or perform actions as the victim. This issue is fixed in versions 4.2.15 and 4.4.10.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-11-03 · last modified 2026-11-03.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Geonetwork Core-Geonetwork — versions >= 3.0.0, <= 3.12.12, >= 4.0.0-alpha.1, <= 4.0.6, >= 4.2.0, < 4.2.15

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-39379?: CVE-2026-39379 is a high-severity vulnerability in Geonetwork Core-Geonetwork, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2026-11-03.
How severe is CVE-2026-39379?: High severity. CVSS v3 base score is 7.1 out of 10.