Vulnerability-Lookup

CVE-2026-106105 (GCVE-0-2026-106105)

Vulnerability from cvelistv5 – Published: 2026-10-06 17:20 – Updated: 2026-10-06 17:53

Title

Quasar Framework: Development TLS private keys are cached with overly permissive filesystem permissions

Summary

Quasar Framework is a framework for building high-performance Vue.js user interfaces. Prior to @quasar/ssl-certificate 2.1.0, @quasar/cli 5.0.4, and @quasar/app-vite 3.3.0, the @quasar/ssl-certificate utility cached a combined private key and certificate PEM without explicitly applying owner-only filesystem permissions. Another local user able to read the cache can copy the key and impersonate a development TLS endpoint in an environment that trusts the certificate. The generated certificate was also CA-capable, carried unnecessarily broad key usages, and encoded the IPv6 loopback address as a DNS subject alternative name. This issue is fixed in @quasar/ssl-certificate 2.1.0, @quasar/cli 5.0.4, and @quasar/app-vite 3.3.0.

Severity

8.4 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-06 17:53 UTC

CWE

CWE-732 - Incorrect Permission Assignment for Critical Resource

Assigner

GitHub_M mitre root Scorecard

References

4 references

URL	Tags
https://github.com/quasarframework/quasar/securit…	x_refsource_CONFIRM
https://github.com/quasarframework/quasar/commit/…	x_refsource_MISC
https://github.com/quasarframework/quasar/release…	x_refsource_MISC
https://github.com/quasarframework/quasar/release…	x_refsource_MISC

Impacted products

4 products

Vendor	Product	Version	CPE status
quasarframework	quasar	Affected: < 2.23.3	guessed
@quasar	app-vite	Affected: < 3.3.0	guessed
@quasar	cli	Affected: < 5.0.4	guessed
@quasar	ssl-certificate	Affected: < 2.1.0	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-106105

Vulnerability from fkie_nvd - Published: 2026-10-06 18:16 - Updated: 2026-10-06 20:03

Severity

8.4 (High) - CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/quasarframework/quasar/commit/b719460aa78e88714b8a1b7ca68267234d217575
	security-advisories@github.com	https://github.com/quasarframework/quasar/releases/tag/@quasar/app-vite-v3.3.0
	security-advisories@github.com	https://github.com/quasarframework/quasar/releases/tag/@quasar/cli-v5.0.4
	security-advisories@github.com	https://github.com/quasarframework/quasar/security/advisories/GHSA-fh39-c73x-5pjv

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "quasar",
          "vendor": "quasarframework",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.23.3"
            }
          ]
        },
        {
          "product": "app-vite",
          "vendor": "@quasar",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.3.0"
            }
          ]
        },
        {
          "product": "cli",
          "vendor": "@quasar",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 5.0.4"
            }
          ]
        },
        {
          "product": "ssl-certificate",
          "vendor": "@quasar",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.1.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Quasar Framework is a framework for building high-performance Vue.js user interfaces. Prior to @quasar/ssl-certificate 2.1.0, @quasar/cli 5.0.4, and @quasar/app-vite 3.3.0, the @quasar/ssl-certificate utility cached a combined private key and certificate PEM without explicitly applying owner-only filesystem permissions. Another local user able to read the cache can copy the key and impersonate a development TLS endpoint in an environment that trusts the certificate. The generated certificate was also CA-capable, carried unnecessarily broad key usages, and encoded the IPv6 loopback address as a DNS subject alternative name. This issue is fixed in @quasar/ssl-certificate 2.1.0, @quasar/cli 5.0.4, and @quasar/app-vite 3.3.0."
    }
  ],
  "id": "CVE-2026-106105",
  "lastModified": "2026-10-06T20:03:40.690",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "LOCAL",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.4,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
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          "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
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}

GHSA-FH39-C73X-5PJV

Vulnerability from github – Published: 2026-10-07 16:16 – Updated: 2026-10-07 16:16

Summary

Quasar Framework: Development TLS private keys are cached with overly permissive filesystem permissions

Details

The @quasar/ssl-certificate development utility caches a combined PEM containing a generated private key and certificate without explicitly restricting its filesystem permissions. On systems with a typical process umask, the PEM can be readable by other local users. A local attacker with filesystem access could copy and reuse the private key to impersonate a development TLS endpoint in an environment that trusts the certificate.

The generated certificate was also unnecessarily CA-capable and included broad key usages beyond its localhost HTTPS purpose. Its IPv6 loopback entry was encoded as a DNS name rather than an IP subject alternative name.

The remediation writes and repairs the cached PEM with owner-only permissions on supported platforms, generates a non-CA server-auth leaf certificate with constrained key usage, corrects the IPv6 loopback SAN, and bases cache expiry on content modification time so permission metadata changes cannot extend the certificate lifetime. This issue does not expose the key remotely by itself; exploitation requires another local user to be able to read the cached PEM file.

Severity

8.4 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.0.0"
      },
      "package": {
        "ecosystem": "npm",
        "name": "@quasar/ssl-certificate"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 5.0.3"
      },
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        "ecosystem": "npm",
        "name": "@quasar/cli"
      },
      "ranges": [
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          "events": [
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            }
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        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 3.2.0"
      },
      "package": {
        "ecosystem": "npm",
        "name": "@quasar/app-vite"
      },
      "ranges": [
        {
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            {
              "introduced": "0"
            },
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              "fixed": "3.3.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-106105"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-732"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-07T16:16:18Z",
    "nvd_published_at": "2026-10-06T18:16:51Z",
    "severity": "HIGH"
  },
  "details": "The `@quasar/ssl-certificate` development utility caches a combined PEM containing a generated private key and certificate without explicitly restricting its filesystem permissions. On systems with a typical process umask, the PEM can be readable by other local users. A local attacker with filesystem access could copy and reuse the private key to impersonate a development TLS endpoint in an environment that trusts the certificate.\n\nThe generated certificate was also unnecessarily CA-capable and included broad key usages beyond its localhost HTTPS purpose. Its IPv6 loopback entry was encoded as a DNS name rather than an IP subject alternative name.\n\nThe remediation writes and repairs the cached PEM with owner-only permissions on supported platforms, generates a non-CA server-auth leaf certificate with constrained key usage, corrects the IPv6 loopback SAN, and bases cache expiry on content modification time so permission metadata changes cannot extend the certificate lifetime. This issue does not expose the key remotely by itself; exploitation requires another local user to be able to read the cached PEM file.",
  "id": "GHSA-fh39-c73x-5pjv",
  "modified": "2026-10-07T16:16:18Z",
  "published": "2026-10-07T16:16:18Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/quasarframework/quasar/security/advisories/GHSA-fh39-c73x-5pjv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-106105"
    },
    {
      "type": "WEB",
      "url": "https://github.com/quasarframework/quasar/commit/b719460aa78e88714b8a1b7ca68267234d217575"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/quasarframework/quasar"
    },
    {
      "type": "WEB",
      "url": "https://github.com/quasarframework/quasar/releases/tag/@quasar/app-vite-v3.3.0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/quasarframework/quasar/releases/tag/@quasar/cli-v5.0.4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Quasar Framework: Development TLS private keys are cached with overly permissive filesystem permissions"
}

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.

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.

Action not permitted

CVE-2026-106105 (GCVE-0-2026-106105)

FKIE_CVE-2026-106105

GHSA-FH39-C73X-5PJV

Tags

Sightings

Nomenclature

Related by attack behaviour