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CVE-2026-104474 (GCVE-0-2026-104474)

Vulnerability from cvelistv5 – Published: 2026-10-02 23:28 – Updated: 2026-10-02 23:28

Title

OpenLiteSpeed before 1.9.3 Local Privilege Escalation via lsup.sh Auto-Update

Summary

OpenLiteSpeed before 1.9.3 contains a local privilege escalation vulnerability in admin/misc/lsup.sh that runs unverified update packages from a nobody-writable directory as root. Attackers controlling the nobody web process can replace the package in /usr/local/lsws/autoupdate/ before extraction, so its install.sh runs as root on the next update.

Severity

5.4 (Medium)


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

6.7 (Medium)


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

CWE

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Assigner

VulnCheck mitre root

References

4 references

URL	Tags
https://openlitespeed.org/release-log/version-1-9-x/	vendor-advisory
https://github.com/litespeedtech/openlitespeed/co…	patch
https://github.com/litespeedtech/openlitespeed/bl…	technical-description
https://www.vulncheck.com/advisories/openlitespee…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
litespeedtech	openlitespeed	Affected: 0 , < 1.9.3 (semver) Unaffected: 1.9.3 (semver) cpe:2.3:a:litespeedtech:openlitespeed::::::::

Date Public

2026-09-29 00:00

Credits

FCI Cloud Security

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:github/litespeedtech/openlitespeed",
          "product": "openlitespeed",
          "repo": "https://github.com/litespeedtech/openlitespeed",
          "vendor": "litespeedtech",
          "versions": [
            {
              "lessThan": "1.9.3",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "1.9.3",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:litespeedtech:openlitespeed:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "1.9.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "FCI Cloud Security"
        }
      ],
      "datePublic": "2026-09-29T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "OpenLiteSpeed before 1.9.3 contains a local privilege escalation vulnerability in admin/misc/lsup.sh that runs unverified update packages from a nobody-writable directory as root. Attackers controlling the nobody web process can replace the package in /usr/local/lsws/autoupdate/ before extraction, so its install.sh runs as root on the next update."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-367",
              "description": "Time-of-check Time-of-use (TOCTOU) Race Condition",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-02T23:28:45.481Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "OpenLiteSpeed Version 1.9.x Release Log",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://openlitespeed.org/release-log/version-1-9-x/"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/litespeedtech/openlitespeed/commit/468523ce84388cea9ba6633c26517bc05b3e2bc1"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/litespeedtech/openlitespeed/blob/v1.9.2/dist/admin/misc/lsup.sh#L538"
        },
        {
          "name": "VulnCheck Advisory: OpenLiteSpeed before 1.9.3 Local Privilege Escalation via lsup.sh Auto-Update",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/openlitespeed-before-1.9.3-local-privilege-escalation-via-lsup-sh-auto-update"
        }
      ],
      "title": "OpenLiteSpeed before 1.9.3 Local Privilege Escalation via lsup.sh Auto-Update",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-104474",
    "datePublished": "2026-10-02T23:28:45.481Z",
    "dateReserved": "2026-10-02T00:55:58.387Z",
    "dateUpdated": "2026-10-02T23:28:45.481Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2024-31617 (GCVE-0-2024-31617)

Vulnerability from cvelistv5 – Published: 2024-05-22 17:42 – Updated: 2025-02-13 15:47

Summary

OpenLiteSpeed before 1.8.1 mishandles chunked encoding.

Severity

5.3 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-19 19:28 UTC

CWE

n/a
CWE-770 - Allocation of Resources Without Limits or Throttling