FKIE_CVE-2026-14966

Vulnerability from fkie_nvd - Published: 2026-07-08 16:16 - Updated: 2026-07-09 17:05
Severity
3.1 (Low) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
Summary
BBOT's unarchive module rejects archives containing symlink entries before extraction, but for zip and 7z archives it failed to detect symlinks whose listing carries a DOS-attribute prefix before the unix mode, as produced by legacy versions of p7zip. Such an archive, downloaded and extracted during a scan (for example via filedownload), bypassed the guard and caused an attacker-controlled symlink to be written into the extraction directory. The effect is limited to planting the symlink (its target is not written through), and only hosts using such a legacy p7zip build are affected; current mainline 7-Zip is not.
References
cves@blacklanternsecurity.comhttps://github.com/blacklanternsecurity/bbot/commit/a3f1a2292e2b0a553827c6175b761abe28807735
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "BBOT",
          "repo": "https://github.com/blacklanternsecurity/bbot",
          "vendor": "Black Lantern Security",
          "versions": [
            {
              "lessThanOrEqual": "2.8.6",
              "status": "affected",
              "version": "2.3.1",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "cves@blacklanternsecurity.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "BBOT\u0027s unarchive module rejects archives containing symlink entries before extraction, but for zip and 7z archives it failed to detect symlinks whose listing carries a DOS-attribute prefix before the unix mode, as produced by legacy versions of p7zip. Such an archive, downloaded and extracted during a scan (for example via filedownload), bypassed the guard and caused an attacker-controlled symlink to be written into the extraction directory. The effect is limited to planting the symlink (its target is not written through), and only hosts using such a legacy p7zip build are affected; current mainline 7-Zip is not."
    }
  ],
  "id": "CVE-2026-14966",
  "lastModified": "2026-07-09T17:05:26.503",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 3.1,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 1.4,
        "source": "cves@blacklanternsecurity.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-14966",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-08T15:57:06.003777Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-08T16:16:27.237",
  "references": [
    {
      "source": "cves@blacklanternsecurity.com",
      "url": "https://github.com/blacklanternsecurity/bbot/commit/a3f1a2292e2b0a553827c6175b761abe28807735"
    }
  ],
  "sourceIdentifier": "cves@blacklanternsecurity.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-59"
        }
      ],
      "source": "cves@blacklanternsecurity.com",
      "type": "Secondary"
    }
  ]
}



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