In ORY Fosite (the security first OAuth2 & OpenID Connect framework for Go) before version 0.34.0, the TokenRevocationHandler ignores errors coming from the storage. This can lead to unexpected 200 status codes indicating successful revocation while the token is still valid. Whether an attacker can use this for her advantage depends on the ability to trigger errors in the store. This is fixed in version 0.34.0
CVE-2020-15223
HIGHNVD 8.08.0
EchelonGraph scoreLOW confidence
This high-severity CVE scores 8.0 under NVD CVSS v3. EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: nvd
8.0
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 2%CVSS: 8.0Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.0
- EG Score
- 8.0(low)
- EPSS
- 72.8%
- KEV
- Not listed
Published
September 24, 2020
Last Modified
November 21, 2024
References (6)
- security-advisories@githubhttps://github.com/ory/fosite/commit/03dd55813f5521985f7dd64277b7ba0cf1441319
- security-advisories@githubhttps://github.com/ory/fosite/security/advisories/GHSA-7mqr-2v3q-v2wm
- security-advisories@githubhttps://tools.ietf.org/html/rfc7009#section-2.2.1
- af854a3a-2127-422b-91ae-364da2661108https://github.com/ory/fosite/commit/03dd55813f5521985f7dd64277b7ba0cf1441319
- af854a3a-2127-422b-91ae-364da2661108https://github.com/ory/fosite/security/advisories/GHSA-7mqr-2v3q-v2wm
- af854a3a-2127-422b-91ae-364da2661108https://tools.ietf.org/html/rfc7009#section-2.2.1
Frequently asked(5)
What is CVE-2020-15223?
CVE-2020-15223 is a high vulnerability published on September 24, 2020. In ORY Fosite (the security first OAuth2 & OpenID Connect framework for Go) before version 0.34.0, the TokenRevocationHandler ignores errors coming from the storage. This can lead to unexpected 200 status codes indicating successful revocation while the token is still valid. Whether an attacker can…
When was CVE-2020-15223 disclosed?
CVE-2020-15223 was first published in the National Vulnerability Database on September 24, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-15223 actively exploited?
CVE-2020-15223 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 72.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2020-15223?
CVE-2020-15223 has a CVSS v3 base score of 8.0 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2020-15223?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-15223, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2020-15223
Is Your Infrastructure Affected by CVE-2020-15223?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.