CVE-2021-26814

Reference page built from the source records below, each shown as its source publishes it. Dataset version ref-a0875483cfdf, updated 2026-06-17T03:43:49.140Z.

NVD analysis

Status
Modified
Published
2021-03-06T02:15:12.100
Last modified
2026-06-17T03:43:49.140
Weaknesses
CWE-22

Wazuh API in Wazuh from 4.0.0 to 4.0.3 allows authenticated users to execute arbitrary code with administrative privileges via /manager/files URI. An authenticated user to the service may exploit incomplete input validation on the /manager/files API to inject arbitrary code within the API service script.

MetricScoreSeverityVectorScored by
CVSS 3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H[email protected] (Primary)
CVSS 2.06.5MEDIUMAV:N/AC:L/Au:S/C:P/I:P/A:P[email protected] (Primary)

References

This product uses the NVD API but is not endorsed or certified by the NVD.

Read on 2026-11-03T01:42:55.537Z under licence nvd-api-terms-of-use@ff2a5288 from https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2021-26814

CVE record

Assigner
mitre
State
PUBLISHED
Published
2021-03-06T01:24:12.000Z
Updated
2024-08-03T20:33:41.056Z
Problem types
n/a

Wazuh API in Wazuh from 4.0.0 to 4.0.3 allows authenticated users to execute arbitrary code with administrative privileges via /manager/files URI. An authenticated user to the service may exploit incomplete input validation on the /manager/files API to inject arbitrary code within the API service script.

References

Read on 2026-11-03T01:06:50.703Z under licence cve-terms-of-use@81bfa2f3 from https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2021/26xxx/CVE-2021-26814.json

Also known as / affected packages

Detection rules (SigmaHQ)

SigmaHQ rules whose own tags name this CVE. Each rule page shows the rule as its author published it.

Defensive techniques (MITRE D3FEND)

D3FEND maps these defensive techniques to the weakness (CWE) that NVD lists for this CVE, through the digital artifacts the weakness affects. D3FEND does not say they stop this vulnerability.

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

D3FEND ontology version 1.6.0.

Read on 2026-11-02T23:53:56.145Z under licence d3fend-terms-of-use@f98cbc7e from https://d3fend.mitre.org/api/weakness/cwe/CWE-22.json

MITRE D3FEND™ knowledge graph. © 2025 The MITRE Corporation.
"The MITRE Corporation (MITRE) hereby grants you a non-exclusive, royalty-free license to use D3FEND for research, development, and commercial purposes. Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." Terms: https://d3fend.mitre.org/tou/

Sources and licences

  • National Vulnerability Database (NIST)

    This product uses the NVD API but is not endorsed or certified by the NVD.

    NVD API Terms of Use (NIST publications in the public domain, 17 U.S.C. 105)

  • CVE Program, The MITRE Corporation

    Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation. CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

    CVE Program Terms of Use ("CVE Usage" licence)

  • GitHub Advisory Database via OSV.dev

    GHSA-w36g-q975-37rg: GitHub Advisory Database, https://github.com/advisories/GHSA-w36g-q975-37rg. Licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/), provided as is, without warranties. Retrieved via OSV.dev (https://osv.dev/vulnerability/GHSA-w36g-q975-37rg), which enriches records; fields selected and reformatted by ransomware-tracker.com.

    CC BY 4.0

  • SigmaHQ

    "Exploitation of CVE-2021-26814 in Wazuh" by Florian Roth (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2021/Exploits/CVE-2021-26814/web_cve_2021_26814_wzuh_rce.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

  • MITRE D3FEND

    MITRE D3FEND™ knowledge graph. © 2025 The MITRE Corporation.
    "The MITRE Corporation (MITRE) hereby grants you a non-exclusive, royalty-free license to use D3FEND for research, development, and commercial purposes. Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." Terms: https://d3fend.mitre.org/tou/

    MITRE D3FEND Terms of Use (site + knowledge graph); source repo MIT

Cite this page

Dragons Eye Ransomware Tracker, "CVE-2021-26814",
entity page, dataset version ref-a0875483cfdf, updated 2026-06-17T03:43:49.140Z,
https://ransomware-tracker.com/cve/CVE-2021-26814 (accessed 2026-11-03).
Underlying source: National Vulnerability Database (NIST), CVE API 2.0, record last modified 2026-06-17T03:43:49.140.
Underlying source: CVE List (CVE Program, The MITRE Corporation), record updated 2024-08-03T20:33:41.056Z.
Underlying source: GitHub Advisory Database, GHSA-w36g-q975-37rg, via OSV.dev, modified 2023-11-08T04:05:22.404105Z.
Underlying source: SigmaHQ rule b9888738-29ed-4c54-96a4-f38c57b84bb3, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.
Underlying source: MITRE D3FEND, ontology version 1.6.0.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.

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