Auth bypass in Hyland Alfresco Community
CVE-2026-26336
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.007 (51.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 51.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.007 · change: +0.004
Affected products
- Hyland Alfresco Community — versions 0
- Hyland Alfresco Content Services
- Hyland Alfresco Enterprise — versions 7.4.0, 23.6.0, 25.1.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- connect.hyland.com/t5/alfresco-blog/cve-2026-26336-unauthenticated-arbitrary-fi… (vendor-advisory, patch, Vendor Advisory)
- www.hyland.com/en/solutions/products/alfresco-platform (Product, product)
- www.vulncheck.com/advisories/hyland-alfresco-improper-authorization-arbitrary-f… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-26336?
- CVE-2026-26336 is a high-severity vulnerability in Hyland Alfresco Community, classified under Incorrect Authorization. CVSS score: 7.5/10. Published 2026-02-19.
- How severe is CVE-2026-26336?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2026-26336 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.