CVE-2021-28490 — csrfguard
HIGHCVE-2021-28490 is a high-severity (CVSS 8.8) Cross-Site Request Forgery (CSRF) vulnerability in org.owasp:csrfguard. A fix is available for org.owasp:csrfguard — see the affected versions and patch details below.
Cross-Site Request Forgery in OWASP CSRFGuard
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
org.owasp:csrfguardReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
In OWASP CSRFGuard through 3.1.0, CSRF can occur because the CSRF cookie may be retrieved by using only a session token.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.owasp:csrfguard | all versions | 4.0.0org.owasp:csrfguard:4.0.0 |
Affected Products
csrfguardowaspDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.owasp:csrfguard, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.owasp:csrfguard to 4.0.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2021-28490 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
Frequently Asked Questions
Is CVE-2021-28490 in your dependencies?
Find it across Maven, including transitive dependencies.