CVE-2026-4308Public exploitNetwork attack vector

Authenticated SSRF via unvalidated document URLs

Published Mar 17, 2026 · Updated Mar 17, 2026

Server-side request forgery in Agent Zero 0.9.7 allows remote authenticated users to make the server fetch attacker-supplied document URLs. The handle_pdf_document function passes remote PDF URLs to a loader without validating resolved destinations or redirect targets before retrieval. Low-privileged access is required; successful requests can expose internal response content and interact with services reachable from the container.

CVSS severity6.3
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in Agent Zero 0.9.7 allows remote authenticated users to make the server fetch attacker-supplied document URLs. The handle_pdf_document function passes remote PDF URLs to a loader without validating resolved destinations or redirect targets before retrieval. Low-privileged access is required; successful requests can expose internal response content and interact with services reachable from the container.

The record

CVE
CVE-2026-4308
Published
Mar 17, 2026
Updated
Mar 17, 2026
Vendor
Agent Zero, s.r.o.
Product
Agent Zero
Classifications
CWE-918, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 17, 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=0.9.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Agent Zero, s.r.o. · Agent Zeroversion=0.9.7

Published CVSS scores

6.5NVDAV:N/AC:L/Au:S/C:P/I:P/A:P
6.3NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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
Privilegesauthenticated
Known exploitationUnconfirmed
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.

Technologies

Your stack

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Your stack

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