# CVE-2026-26336: Hyland Alfresco Improper Authorization Arbitrary File Read

> Unauthenticated attackers can read arbitrary files from protected directories via a specific endpoint, exposing sensitive configuration data.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 19 Feb 2026
- **Updated:** 11 May 2026
- **Also known as:** GHSA-j59q-24q8-ggc7

## What is CVE-2026-26336?

CVE-2026-26336 is a high-severity missing authorization vulnerability in Hyland Alfresco Community, published on 19 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official 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.

Weakness: CWE-863 (Incorrect Authorization)

## Which versions are affected by CVE-2026-26336?

It affects 1 product.


Products: Hyland Alfresco Content Services.

## How do I fix CVE-2026-26336?

No fix has been published for CVE-2026-26336 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-26336 being exploited?

There is no known exploitation of CVE-2026-26336 in the wild and no public exploit code.

Public exploit code:

- https://github.com/CEAarab/CVE-2026-26336-PoC (github_poc): https://github.com/CEAarab/CVE-2026-26336-PoC

## Other vulnerabilities in Hyland Alfresco Community

- [CVE-2023-49964](https://insights.sbomify.com/CVE-2023-49964/): Code injection in n/a (high 8.8)
- [CVE-2024-40347](https://insights.sbomify.com/CVE-2024-40347/): Cross-site scripting in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-26336 and fix it if it is affected.

What it is: CVE-2026-26336 is a high-severity missing authorization vulnerability in Hyland Alfresco Community, published on 19 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-26336 in the wild and no public exploit code.

Affected product: Hyland Alfresco Community. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-26336/ (Markdown: https://insights.sbomify.com/CVE-2026-26336/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-26336
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-26336
- OSV: https://osv.dev/vulnerability/CVE-2026-26336

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-26336/
Summaries are generated and may contain mistakes; the official description above is the record.