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GHSA-mpwp-4h2m-765c — Vulnerability in activejob — Advisory Details

MEDIUM

Active Job - Object injection security vulnerability

Published January 16, 2026Updated February 3, 2026Source: osv

Summary

Active Job vulnerability: An Active Job bug allowed String arguments to be deserialized as if they were Global IDs, an object injection security vulnerability.

Advisory Timeline

  • First published January 16, 2026 (269 days ago).
  • Last revised February 3, 2026 — 17 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Bundler
Update activejob to 4.2.0.beta2 or later
gem install activejob -v 4.2.0.beta2

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: rubygems (1).

PackageEcosystemAffectedFixed In
activejob
rubygems
0, 4.2.0.beta14.2.0.beta2

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 7.5 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
—
Confidentiality
—
Integrity
—
Availability
—

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U

References

Frequently Asked Questions

What is GHSA-mpwp-4h2m-765c?
Active Job - Object injection security vulnerability This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 7.5/10).
How do I check if my project is affected by GHSA-mpwp-4h2m-765c?
GHSA-mpwp-4h2m-765c affects activejob. Use GeekWala's free vulnerability scanner to check your dependencies against GHSA-mpwp-4h2m-765c and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
7.5

High exploitability or significant impact. Prioritize remediation within days.

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