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CVE-2018-15801

24
FAUCET Score

CVE-2018-15801 is an authorization bypass vulnerability affecting Spring Security versions 5.1.x prior to 5.1.2, specifically impacting VMware Spring Framework. It allows a malicious user to forge signed JSON Web Tokens (JWTs) with a malicious issuer URL, which could then be accepted as valid for an honest issuer, provided both use the same private key for signing. This vulnerability has a CVSS score of 7.4 (High), indicating a network-based attack with high impact on confidentiality and integrity, but requires high attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.1.0, < 5.1.2CPE matchmatch criteria
cpe:2.3:a:vmware:spring_framework:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

3.3LOW

CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
0.7
Impact Score
2.5
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.65%
Probability of exploitation in next 30 days
EPSS Percentile
47.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0065 is in the 18th percentile among its peer group of 8,920 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

mavenpatch availablevia ghsa
Product: org.springframework.security:spring-security-coreFixed in: 5.1.2
mavenpatch availablevia ghsa
Product: org.springframework.security:spring-security-oauth2-joseFixed in: 5.1.2

Vendor Advisories (1)

mavenGHSA-27xw-p8v6-9jjrhigh

Spring Security vulnerable to Authorization Bypass

Dec 20, 2018

References

pivotal.io / security/cve-2018-15801
Vendor Advisory