# CVE-2026-108572: Casdoor Proxy Validation cas.go CasP3ProxyValidate server-side request forgery

> Remote attackers can exploit a server-side request forgery vulnerability in Casdoor's proxy validation to access internal resources or bypass security controls.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Oct 2026
- **Updated:** 13 Oct 2026
- **Also known as:** GHSA-h4c8-m9wv-p9hq

## What is CVE-2026-108572?

CVE-2026-108572 is a medium-severity server-side request forgery vulnerability in Casdoor, published on 11 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A security vulnerability has been detected in Casdoor up to 3.164.0/4.10.0. Affected is the function CasP3ProxyValidate of the file controllers/cas.go of the component Proxy Validation. Such manipulation of the argument pgtUrl leads to server-side request forgery. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. Upgrading to version 4.11.0 is able to address this issue. The name of the patch is 03c6c9aaa2eda5b085ce128ce0d60b34094efbd9/ada08ecd10cbf158f593dee23a8bab63efecf995. It is advisable to upgrade the affected component.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2026-108572?


## How do I fix CVE-2026-108572?

No fix has been published for CVE-2026-108572 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-108572 being exploited?

There is no known exploitation of CVE-2026-108572 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-108572 and fix it if it is affected.

What it is: CVE-2026-108572 is a medium-severity server-side request forgery vulnerability in Casdoor, published on 11 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-108572 in the wild and no public exploit code.

Affected product: Casdoor. 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-2026-108572/ (Markdown: https://insights.sbomify.com/CVE-2026-108572/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-108572
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-108572
- OSV: https://osv.dev/vulnerability/CVE-2026-108572

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-108572/
Summaries are generated and may contain mistakes; the official description above is the record.