CVE-2022-1722Public exploitNetwork attack vector

Unauthenticated SSRF via missing link-local address check

Published May 16, 2022 · Updated Aug 3, 2024

SSRF in draw.io before 18.0.5 allows remote attackers to access internal IPv6 link-local resources through the editor proxy. ProxyServlet.checkUrlParameter resolves the supplied URL host but omitted InetAddress.isLinkLocalAddress from its address-deny checks. Exploitation requires a reachable server-side proxy and enables response-data disclosure or requests with effects permitted by the targeted service.

CVSS severity3.3
Low
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in draw.io before 18.0.5 allows remote attackers to access internal IPv6 link-local resources through the editor proxy. ProxyServlet.checkUrlParameter resolves the supplied URL host but omitted InetAddress.isLinkLocalAddress from its address-deny checks. Exploitation requires a reachable server-side proxy and enables response-data disclosure or requests with effects permitted by the targeted service.

The record

CVE
CVE-2022-1722
Published
May 16, 2022
Updated
Aug 3, 2024
Vendor
draw.io Ltd
Product
draw.io
Classifications
CWE-918, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 16, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <18.0.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

draw.io Ltd · draw.ioversion=unspecified <18.0.5

Published CVSS scores

3.3NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
7.5huntr.devCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N
2.1NVDAV:L/AC:L/Au:N/C:P/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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