CVE-2021-40822 Exploited in the Wild — GeoServer

Known Exploited Vulnerability Sources

Catalogues that list this CVE as a known exploited vulnerability.

Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.

Source	Added
The Shadowserver First	2025-04-26 00:00 UTC

Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner	Reference	Detected
Nuclei	https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-40822.yaml	Apr 25, 2025

Virtual Patch

Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.

Not available

KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.

Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.

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CVSS Scores

CVSS v3.1 7.5 High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v2.0 5.0 Medium

AV:N/AC:L/Au:N/C:P/I:N/A:N

Exploitation Status

Exploited in the wild

Recorded 2025-04-26 00:00:00 UTC · The Shadowserver

Proof of concept available

Recorded 2022-05-17 13:58:11 UTC · GitHub

Weaknesses (CWE)

CWE-918

Server-Side Request Forgery (SSRF)

Scanner Integrations

Nuclei, Metasploit, and other scanner references for this CVE are listed on the Detection tab.

Potential Proof of Concepts

These PoCs are unverified and could contain malware. Use at your own risk.

phor3nsic/CVE-2021-40822

github · Created 2022-05-17 13:58:11 UTC · 2 stars

Geoserver - Server-Side Request Forgery

nuclei · Created Unknown

Timeline

Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.

26 Apr 2025 00:00 UTC over 1 year ago

26 Apr 2025 00:00 UTC · over 1 year ago

Added to KEVIntel KEV Feed

High-confidence, third-party attested exploitation
25 Apr 2025 00:00 UTC over 1 year ago

25 Apr 2025 00:00 UTC · over 1 year ago

Nuclei template available

Scanner coverage available
17 May 2022 13:58 UTC about 4 years ago

17 May 2022 13:58 UTC · about 4 years ago

Public PoC available

Public proof-of-concept code published
1 May 2022 23:17 UTC about 4 years ago

1 May 2022 23:17 UTC · about 4 years ago

CVE published

Vulnerability disclosed publicly
9 Sep 2021 00:00 UTC almost 5 years ago

9 Sep 2021 00:00 UTC · almost 5 years ago

CVE ID reserved

Identifier reserved by the CNA

Automate This Intelligence with the Pro API

Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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Pro API Example

GET /api/v2/pro/kevs/CVE-2021-40822

{
  "cve_id": "CVE-2021-40822",
  "title": "GeoServer through 2.18.5 and 2.19.x through 2.19.2 allows SSRF via the option...",
  "affected_vendor": "GeoServer",
  "affected_product": "GeoServer",
  "affected_versions": [
    { "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
  ],
  "confidence": "High",
  "cvss_score": 7.5,
  "epss_score": 0.19761,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "...": "Pro API fields" },
  "proof_of_concepts": [ "..." ],
  "scanner_integrations": [ "..." ]
}

The free JSON API returns basic KEV fields only. Confidence, telemetry, and artifact enrichment require Pro API access.

CVE-2021-40822

At a Glance

CVE References