Bug 2453285 (CVE-2026-34041)
| Summary: | CVE-2026-34041 act: github.com/nektos/act: act: Privilege escalation and arbitrary code execution via environment variable injection | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security DevOps Team <prodsec-dev> |
| Status: | NEW --- | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | Keywords: | Security |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in act, a project that allows local execution of GitHub Actions. This vulnerability arises from the unconditional processing of deprecated workflow commands, specifically ::set-env:: and ::add-path::, which were previously disabled due to environment injection risks. A remote attacker can exploit this by injecting these commands when a workflow step echoes untrusted data to standard output. This allows the attacker to set arbitrary environment variables or modify the system's execution path for all subsequent steps within the job, potentially leading to privilege escalation or arbitrary code execution.
|
Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 2454355, 2454356, 2454357 | ||
| Bug Blocks: | |||
|
Description
OSIDB Bzimport
2026-03-31 03:02:35 UTC
|