CVE-2021-26814

mediumpriority · attend · 48EPSS 0.087 · 95 %ileexploit · PoCEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

3 exploits · PoC

Likely / severe?

8.75% (95th) EPSS

CVSS 6.5 · medium

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.5–8.8

v2.06.5mediumAV:N/AC:L/Au:S/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8 · impact 6.4

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.18.3highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-22USprimaryCWE-20US

exploits (3)

Public proof-of-concept and weaponised exploit code.

CYS4srl/CVE-2021-26814PoC of CVE-2021-26814PoC · poc_in_github
WickdDavid/CVE-2021-26814A simple python PoC to exploit CVE-2021-26814 and gain RCE on Wazuh Manager (v.4.0.0-4.0.3) through the API service.PoC · poc_in_github
paolorabbito/Internet-Security-Project---CVE-2021-26814paolorabbito/Internet-Security-Project---CVE-2021-26814PoC · poc_in_github

affected products (3)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
wazuh wazuh4.0.0 → 4.0.3nvdUScpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:*
npm wazuh4.0.0 → 4.0.4osvUSpkg:npm/wazuh

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-w36g-q975-37rgImproper Input Validation (RCE)2021-03-18ghsa · osvUS
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.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2021-03-06modified 2026-06-17

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+12524 more

references (7)

External citations — patches, advisories, analysis.

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