CVE-2021-40809Known exploitationPublic exploitNetwork attack vector

Authenticated SSRF via image URL fetch

Published Dec 1, 2021 · Updated Aug 4, 2024

Server-side request forgery in Jamf Pro before 10.32.0 allows remote authenticated users to read internal resources via crafted image URLs. The EducationStudentPhotoRepository image retrieval path passes the attacker-supplied URL to an HTTP client and returns the response body as Base64 without restricting destinations. An authenticated Jamf user is required, and the server can be induced to reach internal services such as cloud metadata endpoints, exposing their responses.

CVSS severity8.8
High
EPSS probability1.43%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in Jamf Pro before 10.32.0 allows remote authenticated users to read internal resources via crafted image URLs. The EducationStudentPhotoRepository image retrieval path passes the attacker-supplied URL to an HTTP client and returns the response body as Base64 without restricting destinations. An authenticated Jamf user is required, and the server can be induced to reach internal services such as cloud metadata endpoints, exposing their responses.

The record

CVE
CVE-2021-40809
Published
Dec 1, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-918, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 30, 2021Exploitation reportedResearcher-demonstrated SSRF exploitation
  2. Dec 1, 2021CVE publishedPublication date reported by the CVE source.
  3. Aug 4, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5NVDAV:N/AC:L/Au:S/C:P/I:P/A:P

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery
T1190Exploit Public-Facing Application

Public exploit references

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

Reported exploitation

Technologies

Your stack

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Your stack

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