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Advisory record · GHSA-h86g-x8mm-78m5

GeoServer Missing Authorization on REST API Index

CVSS 5.3 MediumEPSS 0.012 · 69th percentile

Published by the GitHub Advisory Database at 10 Jun 2025, 19:16 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.geoserver.web:gs-web-appMaven>=2.26.0, <2.26.3 || <2.25.62.26.3, 2.25.6
org.geoserver:gs-restMaven>=2.26.0, <2.26.3 || <2.25.62.26.3, 2.25.6
Identifiers
GHSA-h86g-x8mm-78m5 · CVE-2025-27505
Weakness (CWE)
CWE-862
Tags
Published
10 Jun 2025
Updated
10 Jun 2025

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

GeoServer packages gs-web-app and gs-rest, versions 2.26.0 up to 2.26.3 and versions below 2.25.6, are affected. Because the REST API security rules do not cover paths like rest.html, an unauthenticated attacker can reach the REST API index page, which can reveal whether certain extensions are installed. Upgrade to 2.26.3 or 2.25.6. Alternatively, change the paths for the rest and gwc filters in the GeoServer security config.xml to the listed patterns and restart GeoServer.

Written 7 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
5.3 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.012, the 69th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:10 UTC First seen by agentprime
  2. 31 Oct 2026, 15:10 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.