TI-2026-14943 Aliases CVE-2026-18157 GHSA-f9rr-qg3x-wq4m

Yggdrasil-worker-package-manager: yggdrasil-worker-package-manager: remote code execution via apt argument injection

LOW 36CWE-88Published 2026-07-31 · Updated 2026-11-04

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-88.

Summary

A flaw was found in yggdrasil-worker-package-manager. A local attacker with existing access to the system could exploit an argument injection vulnerability in the APT backend. This allows specially crafted package names, which begin with a hyphen, to be misinterpreted as command options by apt-get. Successful exploitation could lead to remote code execution (RCE) with root privileges, enabling the attacker to fully compromise the system's integrity, confidentiality, and availability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00356 29th percentileScored 2026-11-07

Fix Fixed yggdrasil-worker-package-manager (RedHatInsights): 0.1.4, 0.2.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
RedHatInsights	yggdrasil-worker-package-manager	before 0.1.4; 0.2.0 to before 0.2.4	0.1.4, 0.2.4	Patch available	CNA
Red Hat	Red Hat Enterprise Linux 10	—	—	Not affected	CNA

yggdrasil-worker-package-manager VendorRedHatInsights Affected before 0.1.4; 0.2.0 to before 0.2.4 Fixed in 0.1.4, 0.2.4 Patch available CNA
Red Hat Enterprise Linux 10 VendorRed Hat Affected — Fixed in — Not affected CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:/a:redhat:enterprise_linux:10	10	—	Red Hat

cpe:/a:redhat:enterprise_linux:10 Versions 10 — ·Red Hat

Remediation

Fix · CNA yggdrasil-worker-package-manager (RedHatInsights) Fixed in 0.1.4, 0.2.4

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

Not affected: 1 product

Red Hat Enterprise Linux 10

Timeline

2026-10-02 Threatist record created from CVE-2026-18157
2026-10-03 Alias added: GHSA-f9rr-qg3x-wq4m

References

Other 5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences