CVE-2026-16016Public exploitNetwork attack vector

Unauthenticated internal requests via unvalidated callback URL

Published Jul 17, 2026 · Updated Jul 17, 2026

SSRF in Poco-AI poco-claw 0.5.0 through 0.5.4 allows remote attackers to issue HTTP requests from the executor via callback_url. The run_task function passes TaskRun.callback_url directly to CallbackClient, whose send method posts callback data to that destination without blocking loopback, private, link-local, or metadata addresses. Network access to the executor API is sufficient and requires no authentication, exposing reachable internal HTTP services and callback payload data.

CVSS severity7.3
High
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Poco-AI poco-claw 0.5.0 through 0.5.4 allows remote attackers to issue HTTP requests from the executor via callback_url. The run_task function passes TaskRun.callback_url directly to CallbackClient, whose send method posts callback data to that destination without blocking loopback, private, link-local, or metadata addresses. Network access to the executor API is sufficient and requires no authentication, exposing reachable internal HTTP services and callback payload data.

The record

CVE
CVE-2026-16016
Published
Jul 17, 2026
Updated
Jul 17, 2026
Vendor
Poco-AI
Product
poco-claw
Classifications
CWE-918, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 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=0.5.0
  2. Affected versionversion=0.5.1
  3. Affected versionversion=0.5.2
  4. Affected versionversion=0.5.3
  5. Affected versionversion=0.5.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Poco-AI · poco-clawversion=0.5.0; version=0.5.1; version=0.5.2; version=0.5.3; version=0.5.4

Published CVSS scores

7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P
5.5VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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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