CVE-2026-33992Public exploitNetwork attack vector

Cloud metadata disclosure via unvalidated download URLs

Published Mar 27, 2026 · Updated Mar 27, 2026

SSRF in pyLoad before 0.5.0b3.dev97 allows remote authenticated users to read internal services through submitted download URLs. The /api/addPackage endpoint passes user-supplied links to BaseDownloader.download, which initiates requests without rejecting private or link-local destinations. Any account with package-add permission can reach services available to the host, including cloud metadata endpoints that expose infrastructure data and credentials.

CVSS severity9.3
Critical
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in pyLoad before 0.5.0b3.dev97 allows remote authenticated users to read internal services through submitted download URLs. The /api/addPackage endpoint passes user-supplied links to BaseDownloader.download, which initiates requests without rejecting private or link-local destinations. Any account with package-add permission can reach services available to the host, including cloud metadata endpoints that expose infrastructure data and credentials.

The record

CVE
CVE-2026-33992
Published
Mar 27, 2026
Updated
Mar 27, 2026
Vendor
pyLoad
Product
pyLoad
Classifications
CWE-918, T1552.005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 27, 2026Record 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=< 0.5.0b3.dev97

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

pyLoad · pyLoadversion=< 0.5.0b3.dev97

Published CVSS scores

9.3GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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 exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1552.005Unsecured Credentials: Cloud Instance Metadata API

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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