CASCACascade Atlas

Evidence dossier

CVE-2019-17558

CVE-2019-17558

71.4–93.6Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

Apache Solr 5.0.0 to Apache Solr 8.3.1 are vulnerable to a Remote Code Execution through the VelocityResponseWriter. A Velocity template can be provided through Velocity templates in a configset `velocity/` directory or as a parameter. A user defined configset could contain renderable, potentially malicious, templates. Parameter provided templates are disabled by default, but can be enabled by setting `params.resource.loader.enabled` by defining a response writer with that setting set to `true`. Defining a response writer requires configuration API access. Solr 8.4 removed the params resource loader entirely, and only enables the configset-provided template rendering when the configset is `trusted` (has been uploaded by an authenticated user).

State
PUBLISHED
Published
Dec 30, 2019
Updated
Oct 21, 2025
Evidence coverage
72%
CISA KEVCatalog member

Apply updates per vendor instructions.

FIRST EPSS98.57%

2026-07-18 · v2026.06.15 · percentile 99.9%

Source stateConflict visible

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

apacheoriginal assertion
container

Apache Solr 5.0.0 to Apache Solr 8.3.1 are vulnerable to a Remote Code Execution through the VelocityResponseWriter. A Velocity template can be provided through Velocity templates in a configset `velocity/` directory or as a parameter. A user defined configset could contain renderable, potentially malicious, templates. Parameter provided templates are disabled by default, but can be enabled by setting `params.resource.loader.enabled` by defining a response writer with that setting set to `true`. Defining a response writer requires configuration API access. Solr 8.4 removed the params resource loader entirely, and only enables the configset-provided template rendering when the configset is `trusted` (has been uploaded by an authenticated user).

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

CVEderivative copy
container

CVE Program Container

CISA KEVoriginal assertion
observed_exploitation

Apache Solr VelocityResponseWriter Plug-In Remote Code Execution Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.985670000000; percentile 0.999170000000

Applicability

Cited product scope

Trace impact →
n/aApache Solr
[{"status": "affected", "version": "Apache Solr 5.0.0 to Apache Solr 8.3.1"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:apache:solr:*:*:*:*:*:*:*:*; start including 5.0.0; end excluding 7.7.3supported
Unknown vendorUnknown product
cpe:2.3:a:apache:solr:*:*:*:*:*:*:*:*; start including 8.0.0; end excluding 8.4.0supported
Unknown vendorUnknown product
cpe:2.3:a:oracle:primavera_unifier:*:*:*:*:*:*:*:*; start including 17.7; end including 17.12supported
Unknown vendorUnknown product
cpe:2.3:a:oracle:primavera_unifier:16.1:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:oracle:primavera_unifier:16.2:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:oracle:primavera_unifier:18.8:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:oracle:primavera_unifier:19.12:*:*:*:*:*:*:*supported

Assessments

CVSS by origin

7.5
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6
nvd@nist.govCVSS 2.0 · role PrimaryAV:N/AC:H/Au:S/C:P/I:P/A:P
7.5
134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS 3.1 · role SecondaryCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.5
CISA-ADPCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.