High severity7.4NVD Advisory· Published Dec 19, 2018· Updated Jun 17, 2026
CVE-2018-15801
CVE-2018-15801
Description
Spring Security versions 5.1.x prior to 5.1.2 contain an authorization bypass vulnerability during JWT issuer validation. In order to be impacted, the same private key for an honest issuer and a malicious user must be used when signing JWTs. In that case, a malicious user could fashion signed JWTs with the malicious issuer URL that may be granted for the honest issuer.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.springframework.security:spring-security-coreMaven | >= 5.1.0, < 5.1.2 | 5.1.2 |
org.springframework.security:spring-security-oauth2-joseMaven | >= 5.1.0, < 5.1.2 | 5.1.2 |
Affected products
4- ghsa-coords2 versionspkg:maven/org.springframework.security/spring-security-corepkg:maven/org.springframework.security/spring-security-oauth2-jose
>= 5.1.0, < 5.1.2+ 1 more
- (no CPE)range: >= 5.1.0, < 5.1.2
- (no CPE)range: >= 5.1.0, < 5.1.2
- Range: 5.1.x
Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-27xw-p8v6-9jjrghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2018-15801ghsaADVISORY
- pivotal.io/security/cve-2018-15801nvdVendor AdvisoryWEB
- github.com/spring-projects/spring-security/commit/c70b65c5df0e170a2d34d812b83db0b7bc71ea25ghsaWEB
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