---
title: "CVE-2026-9094: Casdoor: GetTokenExchangeToken bypass through lack of cross-organization JWT signature check"
url: https://erroneo.us/security/cve/CVE-2026-9094/
description: "CVE-2026-9094 (github.com/casdoor/casdoor (Go)): Casdoor versions 2.362.0 and earlier contain a vulnerability enabling cross-organization token exchange.…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-05-28
date_modified: 2026-07-09
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-9094"
kev: false
cvss: 9.8
epss: 0.00483
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-9094: Casdoor: GetTokenExchangeToken bypass through lack of cross-organization JWT signature check

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.5% , percentile 41: FIRST’s model estimates a 0.5% chance of exploitation activity in the next 30 days, higher than 41% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes github.com/casdoor/casdoor (Go) < 2.387.0, fixed in 2.387.0 . Check your lockfile, including transitive dependencies.

## What it is

Casdoor versions 2.362.0 and earlier contain a vulnerability enabling cross-organization token exchange. The GetTokenExchangeToken function in object/tokenoauth.go validates JWT signatures but does not verify that the token's user belongs to the same organization as the target application. This can result in privilege escalation across organizational boundaries.

## Affected packages

- Go `github.com/casdoor/casdoor` < 2.387.0 → fixed: 2.387.0

## Affected products (CVE record)

- Casdoor Casdoor: <= 2.362.0

## Severity

- CISA-ADP CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
- GitHub CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.48% probability of exploitation activity in the next 30 days; percentile 41.

## Sources

- [GitHub Advisory GHSA-c9w5-qp6m-m395](https://github.com/advisories/GHSA-c9w5-qp6m-m395)
- [CVE.org record CVE-2026-9094](https://www.cve.org/CVERecord?id=CVE-2026-9094)
- [NVD entry CVE-2026-9094](https://nvd.nist.gov/vuln/detail/CVE-2026-9094)
- [kb.cert.org](https://kb.cert.org/vuls/id/780781)
- [github.com](https://github.com/casdoor/casdoor/commit/d92b8568686d)

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Source page: https://erroneo.us/security/cve/CVE-2026-9094/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt