A vulnerability was detected in cosmicstack-labs mercury-agent up to 1.1.13. Affected is the function checkShellCommand of the file src/capabilities/permissions.ts of the component Shell Command Execution. The manipulation results in incorrect behavior order: validate before canonicalize. The attack may be launched remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

No EPSS score available.

Exploitation poc

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
cosmicstack-labs mercury-agent affected
Version Status Constraints
1.1.0 affected —
1.1.1 affected —
1.1.2 affected —
1.1.3 affected —
1.1.4 affected —
1.1.5 affected —
1.1.6 affected —
1.1.7 affected —
1.1.8 affected —
1.1.9 affected —
1.1.10 affected —
1.1.11 affected —
1.1.12 affected —
1.1.13 affected —

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Cosmicstack-labs Subscribe
Mercury-agent Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/cosmicstack-labs/mercury-agent/ cve-icon cve-icon
https://github.com/cosmicstack-labs/mercury-agent/issues/95 cve-icon cve-icon
https://vuldb.com/cve/CVE-2026-90813 cve-icon cve-icon
https://vuldb.com/submit/922879 cve-icon cve-icon
https://vuldb.com/vuln/403315 cve-icon cve-icon
https://vuldb.com/vuln/403315/cti cve-icon cve-icon
History

Mon, 14 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
Description A vulnerability was detected in cosmicstack-labs mercury-agent up to 1.1.13. Affected is the function checkShellCommand of the file src/capabilities/permissions.ts of the component Shell Command Execution. The manipulation results in incorrect behavior order: validate before canonicalize. The attack may be launched remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Title cosmicstack-labs mercury-agent Shell Command Execution permissions.ts checkShellCommand validate before canonicalize
First Time appeared Cosmicstack-labs
Cosmicstack-labs mercury-agent
Weaknesses CWE-179
CWE-180
CPEs cpe:2.3:a:cosmicstack-labs:mercury-agent:*:*:*:*:*:*:*:*
Vendors & Products Cosmicstack-labs
Cosmicstack-labs mercury-agent
References
Metrics cvssV2_0

{'score': 4, 'vector': 'AV:N/AC:L/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 4.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-09-14T19:33:37.520Z

Reserved: 2026-09-13T16:29:51.835Z

Link: CVE-2026-90813

cve-icon Vulnrichment

Updated: 2026-09-14T19:33:33.407Z

cve-icon NVD

Status : Deferred

Published: 2026-09-14T20:17:02.510

Modified: 2026-09-14T20:56:48.220

Link: CVE-2026-90813

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses