CVE-2026-47161Public exploitNetwork attack vector

Authenticated host RCE via Celery pickle deserialization

Published May 27, 2026 · Updated May 27, 2026

Unsafe deserialization in Celery workers in inducer RELATE before 2026.1 allows remote authenticated users to execute arbitrary host commands. The Celery settings accept pickle-encoded tasks, causing workers to invoke attacker-controlled reduce payloads received through the broker. An authenticated student can reach the broker from a code-execution container because course.page.code.request_run does not disable container networking, enabling full host compromise.

CVSS severity8.7
High
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Unsafe deserialization in Celery workers in inducer RELATE before 2026.1 allows remote authenticated users to execute arbitrary host commands. The Celery settings accept pickle-encoded tasks, causing workers to invoke attacker-controlled reduce payloads received through the broker. An authenticated student can reach the broker from a code-execution container because course.page.code.request_run does not disable container networking, enabling full host compromise.

The record

CVE
CVE-2026-47161
Published
May 27, 2026
Updated
May 27, 2026
Vendor
inducer
Product
RELATE
Classifications
CWE-502, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=< d66ba5659b459bf1ba56b7109b5f9ecf197cbefb

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

inducer · RELATEversion=< d66ba5659b459bf1ba56b7109b5f9ecf197cbefb

Published CVSS scores

8.7GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA: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-502Deserialization of Untrusted Data
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo