CVE-2021-48011

waiting for further signals

EUVD-2021-34884 ↗

no check availablenot proven exploitable

cve.orgpublic pockev

lukejacksonn servor >= 1.0.0, <= 4.0.2

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

ETK-2026-1420, permanent identifier

cvss8.7cna vendorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

8d 06h 51msince last run

1h 03mAI analysis

timeline

0 = cve.org publication

trigger signal (cve.org) +0hwaiting for further signals+2h

+4h

+6h

+8h

+10h

+12h

description

Servor versions 1.0.0 through 4.0.2 are affected by a path traversal vulnerability. An unauthenticated remote attacker can access files and enumerate directories outside the configured served root through crafted request paths.

mitigation

Upgrade to a release newer than 4.0.2 if one is available and verify that encoded traversal sequences are rejected before path resolution. Until then, restrict access to the service and run it with minimal filesystem permissions.

check

exploit

automation

–

auth required

EPSS

0.56%45th percentile

agent run time

1h 03m

cve.org record, t = 0

2026-10-12 20:55Z

Δ to public poc

–

Δ to kev

–

outcome

No artifact: an exploit or check was attempted but could not be produced at this moment.

source signals

Public signals that triggered or updated the pipeline. These are inputs for the deltas above.

2026-10-12 20:55Z
cve_org: trigger signal, started the run
https://www.cve.org/CVERecord?id=CVE-2021-48011

this entry in the feed

GET /api/v1/feed/CVE-2021-48011

{
  "etk_id": "ETK-2026-1420",
  "cve_id": "CVE-2021-48011",
  "display_id": "CVE-2021-48011",
  "ghsa_id": null,
  "euvd_id": "EUVD-2021-34884",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Path traversal in servor",
  "summary": "Servor versions 1.0.0 through 4.0.2 are affected by a path traversal vulnerability. An unauthenticated remote attacker can access files and enumerate directories outside the configured served root through crafted request paths.",
  "mitigation": "Upgrade to a release newer than 4.0.2 if one is available and verify that encoded traversal sequences are rejected before path resolution. Until then, restrict access to the service and run it with minimal filesystem permissions.",
  "vendor": "lukejacksonn",
  "product": "servor",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 1.0.0, <= 4.0.2"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "servor",
      "purl": null
    }
  ],
  "cwes": [
    22
  ],
  "cvss_score": 8.7,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
  "epss_score": 0.0056,
  "epss_percentile": 0.4554,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 63.496081833333335,
  "t0_at": "2026-10-12T20:55:05.305000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-12T20:55:05.305000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-12T20:55:05.305000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-48011"
    }
  }
}

published 2026-10-12 21:51Z
last change 2026-10-21 04:45Z

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