Vulnerability-Lookup

GHSA-XF5F-RXC7-27MG

Vulnerability from github – Published: 2026-09-14 12:31 – Updated: 2026-09-14 12:31

Details

After login, PrlSrv_InstallAppliance lets you pick the appliance folder (sVmParentPath). The daemon unpacks with one string, tar -xf "%1" -C "%2", then Qt QProcess::splitCommand chops that string into words. A quote in the folder name closes early. The leftover text becomes extra tar flags. macOS tar --use-compress-program= runs the named program as root.

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-90894"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-78"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-14T10:17:06Z",
    "severity": "HIGH"
  },
  "details": "Parallels Desktop runs\u00a0prl_disp_service\u00a0as root. Local clients reach it on the world-writable socket\u00a0/var/run/prl_disp_service.socket.\u00a0PrlSrv_LoginLocal\u00a0accepts peer credentials. No Parallels signature. No admin group.\n\n\n\nAfter login,\u00a0PrlSrv_InstallAppliance\u00a0lets you pick the appliance folder (sVmParentPath). The daemon unpacks with one string,\u00a0tar -xf \"%1\" -C \"%2\", then Qt\u00a0QProcess::splitCommand\u00a0chops that string into words. A quote in the folder name closes early. The leftover text becomes extra tar flags. macOS\u00a0tar --use-compress-program=\u00a0runs the named program as root.",
  "id": "GHSA-xf5f-rxc7-27mg",
  "modified": "2026-09-14T12:31:37Z",
  "published": "2026-09-14T12:31:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90894"
    },
    {
      "type": "WEB",
      "url": "https://kb.parallels.com/en/131168"
    },
    {
      "type": "WEB",
      "url": "https://www.parallels.com/products/desktop"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-90894 (GCVE-0-2026-90894)

Vulnerability from cvelistv5 – Published: 2026-09-14 09:52 – Updated: 2026-09-15 08:49

Title

Parallels Desktop local privilege escalation via appliance extract argument injection

Summary

Parallels Desktop runs prl_disp_service as root. Local clients reach it on the world-writable socket /var/run/prl_disp_service.socket. PrlSrv_LoginLocal accepts peer credentials. No Parallels signature. No admin group. After login, PrlSrv_InstallAppliance lets you pick the appliance folder (sVmParentPath). The daemon unpacks with one string, tar -xf "%1" -C "%2", then Qt QProcess::splitCommand chops that string into words. A quote in the folder name closes early. The leftover text becomes extra tar flags. macOS tar --use-compress-program= runs the named program as root.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-14 10:23 UTC

CWE

CWE-88 - Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-269 - Improper Privilege Management

Assigner

JFROG mitre root

References

2 references

URL	Tags
https://www.parallels.com/products/desktop/	product
https://kb.parallels.com/en/131168	release-notes

Impacted products

1 product

Vendor	Product	Version
Parallels	Parallels Desktop for Mac	Affected: 26.4.0 Unaffected: 27.0.0

Credits

Yuval Moravchick | JFrog

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.