Authorization Bypass During JWT Issuer Validation with spring-security
Published Dec 19, 2018
7.4
HIGHCVSS 3.1
EPSS 0.65%
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.
Affected products
-
- Version 5.1.xStatusaffectedConstraints<5.1.2
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Spring by Pivotal | Spring Security | n/a |
|
- ≥ 5.1.0 · < 5.1.2
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
1 other source (CVE.org) ▾
CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N
AV:N/AC:M/Au:N/C:P/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.65% (0.00653) | 49.41th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.65% (0.00653) | 49.83th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.14% (0.00141) | 50.22th | v3 (v2023.03.01) |
| Jun 21, 2024 | 0.14% (0.00141) | 50.00th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.14% (0.00141) | 48.00th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.42% (0.00416) | 10.04th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.42% (0.00416) | 0.00th | v1 |
References (4)
- https://github.com/advisories/GHSA-27xw-p8v6-9jjr Advisory
- https://github.com/spring-projects/spring-security/commit/c70b65c5df0e170a2d34d812b83db0b7bc71ea25
- https://nvd.nist.gov/vuln/detail/CVE-2018-15801
- https://pivotal.io/security/cve-2018-15801 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/advisories/GHSA-27xw-p8v6-9jjr | Advisory | |
| https://github.com/spring-projects/spring-security/commit/c70b65c5df0e170a2d34d812b83db0b7bc71ea25 | ||
| https://nvd.nist.gov/vuln/detail/CVE-2018-15801 | ||
| https://pivotal.io/security/cve-2018-15801 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.