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CVE-2026-77621 Vector: Arbitrary file write in the file sink via templated path (path traversal).

🗓️ 22 Sep 2026 15:19:19Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 25 Views

Vector is a high-performance observability data pipeline. From 0.10.0 until 0.57.0, the file sink renders its templated path from event fields and opens the result without confining it to an intended directory. When an untrusted source supplies an...

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ReporterTitlePublishedViews
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circl
Circl
CVE-2026-77621
22 Sep 202617:10
circl
cve
CVE
CVE-2026-77621
22 Sep 202615:19
cve
euvd
EUVD
EUVD-2026-84510
22 Sep 202615:19
euvd
nvd
NVD
CVE-2026-77621
22 Sep 202616:17
nvd
[
  {
    "vendor": "vectordotdev",
    "product": "vector",
    "versions": [
      {
        "version": ">= 0.10.0, < 0.57.0",
        "status": "affected"
      }
    ]
  }
]

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22 Sep 2026 15:19Current
CVSS 49.3
EPSS0.01124
25