CVE-2026-55864GeoNetwork: Unauthenticaded Server-Side Request Forgery in SLD Tool
Updated under an hour ago ()
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It affects geonetwork core-geonetwork. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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GeoNetwork is a catalog application to manage spatially referenced resources. Prior to 4.2.17 and 4.4.12, POST /api/tools/ogc/sld accepted a caller-supplied WMS server URL and performed a server-side HTTP GET without destination validation. An anonymous attacker could make the GeoNetwork server send requests to internal hosts that are not publicly reachable. When the outbound response was XML, the endpoint could store and return the fetched body, making the request forgery non-blind and enabling internal data disclosure, authorization bypass, and network reconnaissance. This issue is fixed in versions 4.2.17 and 4.4.12.
- CVSS
- 7.8 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N
- Weakness (CWE)
- CWE-918
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Sep 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
geonetwork core-geonetwork geonetwork:core_geonetwork (from the name) | from 4.0.0, < 4.2.17; from 4.4.0, < 4.4.12 | CNA record |
References
- https://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-5hx7-j24v-rffjx-refsource-confirm
- https://github.com/geonetwork/core-geonetwork/pull/9343x-refsource-misc
- https://github.com/geonetwork/core-geonetwork/pull/9344x-refsource-misc
- https://github.com/geonetwork/core-geonetwork/commit/17fdae28a5a51996bf5ff7f7e8236332c74eab77x-refsource-misc
- https://github.com/geonetwork/core-geonetwork/commit/a80d535c842e6af589d0bac37e7fe4ba01193757x-refsource-misc
- https://github.com/geonetwork/core-geonetwork/releases/tag/4.2.17x-refsource-misc
- https://github.com/geonetwork/core-geonetwork/releases/tag/4.4.12x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.