Vulnerability-Lookup

Search criteria

Vendor

Product

Assigner (CNA or root)

Sources

Sort by

Order

CVSS min

CVSS max

Apply ordering (override relevance)

CVE-2026-122235 (GCVE-0-2026-122235)

Vulnerability from cvelistv5 – Published: 2026-11-04 21:06 – Updated: 2026-11-09 16:57

Title

Jan 0.8.5 before 0.8.8 Workspace Guard Bypass via Dangling Symlink

Summary

Jan from 0.8.5 before 0.8.8 contains a workspace guard bypass vulnerability in the agent-tools gate.rs that allows attackers to write files outside the workspace via dangling symlinks. Attackers supplying a malicious repository can use prompt injection to make the write or edit tools follow symlinks, creating files like ~/.ssh/authorized_keys on the host.

Severity

5.7 (Medium)


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

4.7 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-09 16:09 UTC

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

VulnCheck CNA

References

5 references

URL	Tags
https://github.com/janhq/jan/security/advisories/…	vendor-advisory
https://github.com/janhq/jan/pull/9424	patchissue-tracking
https://github.com/janhq/jan/commit/840c33e65182b…	patch
https://github.com/janhq/jan/releases/tag/v0.8.8	release-notes
https://www.vulncheck.com/advisories/jan-0.8.5-be…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
janhq	jan	Affected: 0.8.5 , < 0.8.8 (semver)

Date Public

2026-10-29 10:44

Credits

Zachariah Mithani (AploSec)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-122235",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-11-09T16:09:38.690510Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-11-09T16:57:40.843Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:github/janhq/jan",
          "product": "jan",
          "repo": "https://github.com/janhq/jan",
          "vendor": "janhq",
          "versions": [
            {
              "lessThan": "0.8.8",
              "status": "affected",
              "version": "0.8.5",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Zachariah Mithani (AploSec)"
        }
      ],
      "datePublic": "2026-10-29T10:44:47.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Jan from 0.8.5 before 0.8.8 contains a workspace guard bypass vulnerability in the agent-tools gate.rs that allows attackers to write files outside the workspace via dangling symlinks. Attackers supplying a malicious repository can use prompt injection to make the write or edit tools follow symlinks, creating files like ~/.ssh/authorized_keys on the host."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "baseScore": 5.7,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "HIGH"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-59",
              "description": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-04T21:06:42.684Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Security Advisory (GHSA-7j4g-mj5j-p842)",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/janhq/jan/security/advisories/GHSA-7j4g-mj5j-p842"
        },
        {
          "tags": [
            "patch",
            "issue-tracking"
          ],
          "url": "https://github.com/janhq/jan/pull/9424"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/janhq/jan/commit/840c33e65182ba9975d32f710c5d111e25444b65"
        },
        {
          "name": "jan v0.8.8 Release Notes",
          "tags": [
            "release-notes"
          ],
          "url": "https://github.com/janhq/jan/releases/tag/v0.8.8"
        },
        {
          "name": "VulnCheck Advisory: Jan 0.8.5 before 0.8.8 Workspace Guard Bypass via Dangling Symlink",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/jan-0.8.5-before-0.8.8-workspace-guard-bypass-via-dangling-symlink"
        }
      ],
      "title": "Jan 0.8.5 before 0.8.8 Workspace Guard Bypass via Dangling Symlink",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-122235",
    "datePublished": "2026-11-04T21:06:42.684Z",
    "dateReserved": "2026-11-04T20:51:11.221Z",
    "dateUpdated": "2026-11-09T16:57:40.843Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-66005 (GCVE-0-2026-66005)

Vulnerability from cvelistv5 – Published: 2026-07-24 14:57 – Updated: 2026-09-17 17:54 X_Open Source

Title

Jan Local API Server CORS Origin Reflection via 0.0.0.0 Binding

Summary

Jan through 0.8.4, fixed in commit 3e1c1e7, contains a CORS misconfiguration vulnerability in its local API server that allows network-adjacent attackers to bypass trusted host restrictions by exploiting the server's replacement of user-configured trusted hosts with a wildcard that reflects arbitrary origins with credentials. Attackers on the local network or using DNS rebinding can reach the unauthenticated OpenAI-compatible API to perform inference, enumerate models, invoke MCP tools, and read cross-origin responses.

Severity

5.3 (Medium)


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

6.3 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial