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CVE-2026-26336

Hyland Alfresco Improper Authorization Arbitrary File Read

HIGH
7.5
CVSS Score
Published: February 19, 2026 at 03:56 PM UTC
Updated: June 17, 2026 at 10:26 AM UTC
1 product affected across 1 vendorAlfresco Content Services

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Severity
HIGH7.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Alfresco Content Services· Hyland
95%
v < 25.3v < 25.3.023.1 ≤ v ≤ 23.6.023.6.0 ≤ v < 23.6.125.1 ≤ v ≤ 25.225.1.0 ≤ v < 25.3.07.4.0 ≤ v ≤ 7.4.2.57.4.0 ≤ v < 7.4.2.623.6.025.1.07.4.0
Affected range stops below 23.6.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 25.3.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.4.2.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

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

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-863

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