Server-side request forgery in Casdoor proxy validation
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.
Summary
Casdoor up to 3.164.0 and 4.10.0 is affected, through the CasP3ProxyValidate function in controllers/cas.go. Manipulating the pgtUrl argument causes server-side request forgery (CWE-918), so a remote attacker with low privileges can make the server send requests to destinations of their choice. The exploit has been publicly disclosed and may be used.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Casdoor | 3.164; 4.0; 4.1; 4.2; 4.3; 4.4; 4.5; 4.6; 4.7; 4.8; 4.9; 4.10.0 | 4.11.0 | Patch available | CNA |
- Casdoor Vendor— Affected 3.164; 4.0; 4.1; 4.2; 4.3; 4.4; 4.5; 4.6; 4.7; 4.8; 4.9; 4.10.0 Fixed in 4.11.0 Patch available CNA
CPE names CNA · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:casdoor:casdoor:*:*:*:*:*:*:*:* | — | — | — |
- cpe:2.3:a:casdoor:casdoor:*:*:*:*:*:*:*:* Versions — — ·—
Remediation
Upgrade Casdoor to version 4.11.0, which fixes this issue. The patch is identified as 03c6c9aaa2eda5b085ce128ce0d60b34094efbd9/ada08ecd10cbf158f593dee23a8bab63efecf995.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA Casdoor Fixed in 4.11.0
Timeline
- 2026-10-11 Threatist record created from CVE-2026-108572
- 2026-10-11 Alias added: GHSA-h4c8-m9wv-p9hq
- 2026-10-13 CISA SSVC decision points changed
References
Sources
- CVE-2026-108572 · CVE Program
- CVE-2026-108572 · NVD
- FIRST EPSS
- GHSA-h4c8-m9wv-p9hq · GitHub Advisory Database · CC BY 4.0
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