8.7
HIGH CVSS 4.0
CVE-2026-26336
Hyland Alfresco Improper Authorization Arbitrary File Read
Description

Hyland Alfresco allows unauthenticated attackers to read arbitrary files from protected directories (like WEB-INF) via the "/share/page/resource/" endpoint, thus leading to the disclosure of sensitive configuration files.

INFO

Published Date :

Feb. 19, 2026, 5:24 p.m.

Last Modified :

March 3, 2026, 4:37 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-26336 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Alfresco community_share
1 Atlassian alfresco_enterprise_content_management
1 Hyland alfresco_content_services
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 3.1 HIGH [email protected]
CVSS 4.0 HIGH 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 4.0 HIGH [email protected]
Solution
Restrict access to sensitive files and update the application to patch the vulnerability.
  • Restrict access to sensitive directories like WEB-INF.
  • Apply vendor patches for Hyland Alfresco.
  • Review application configuration for security.
  • Monitor file access logs for suspicious activity.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-26336.

URL Resource
https://connect.hyland.com/t5/alfresco-blog/cve-2026-26336-unauthenticated-arbitrary-file-read-in-alfresco/ba-p/496550 Vendor Advisory
https://www.hyland.com/en/solutions/products/alfresco-platform Product
https://www.vulncheck.com/advisories/hyland-alfresco-improper-authorization-arbitrary-file-read Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-26336 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-26336 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-26336 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-26336 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Mar. 03, 2026

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:a:hyland:alfresco_content_services:*:*:*:*:community:*:*:* versions up to (excluding) 25.3
    Added CPE Configuration OR *cpe:2.3:a:hyland:alfresco_content_services:*:*:*:*:enterprise:*:*:* versions from (including) 23.1 up to (including) 23.6.0 *cpe:2.3:a:hyland:alfresco_content_services:*:*:*:*:enterprise:*:*:* versions from (including) 25.1 up to (including) 25.2 *cpe:2.3:a:hyland:alfresco_content_services:*:*:*:*:enterprise:*:*:* versions from (including) 7.4.0 up to (including) 7.4.2.5
    Added Reference Type VulnCheck: https://connect.hyland.com/t5/alfresco-blog/cve-2026-26336-unauthenticated-arbitrary-file-read-in-alfresco/ba-p/496550 Types: Vendor Advisory
    Added Reference Type VulnCheck: https://www.hyland.com/en/solutions/products/alfresco-platform Types: Product
    Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/hyland-alfresco-improper-authorization-arbitrary-file-read Types: Third Party Advisory
  • CVE Modified by [email protected]

    Feb. 20, 2026

    Action Type Old Value New Value
    Added Reference https://connect.hyland.com/t5/alfresco-blog/cve-2026-26336-unauthenticated-arbitrary-file-read-in-alfresco/ba-p/496550
  • New CVE Received by [email protected]

    Feb. 19, 2026

    Action Type Old Value New Value
    Added Description Hyland Alfresco allows unauthenticated attackers to read arbitrary files from protected directories (like WEB-INF) via the "/share/page/resource/" endpoint, thus leading to the disclosure of sensitive configuration files.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    Added CWE CWE-863
    Added Reference https://www.hyland.com/en/solutions/products/alfresco-platform
    Added Reference https://www.vulncheck.com/advisories/hyland-alfresco-improper-authorization-arbitrary-file-read
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.