- 3.3LowCVSS base score
- 0.65%Exploitation in 30 daysEPSS · top 48% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By dell
- 4 months later
· 4 months later
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| dellCNA (assigner) | 3.0 | Low3.3 | CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N |
| NVDNVD · Modified | 3.1 | High7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.65% · top 48% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.3.
Affected products
Spring by Pivotal · Spring Security
- affected 5.1.x – < 5.1.2
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenorg.springframework.security:spring-security-coreGHSA-27xw-p8v6-9jjr (opens in a new tab)
- Mavenorg.springframework.security:spring-security-oauth2-joseGHSA-27xw-p8v6-9jjr (opens in a new tab)
References
1
- https://pivotal.io/security/cve-2018-15801 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2018-0791 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-27xw-p8v6-9jjr (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2018-15801)Record last updated .