CVE-2026-59316

Spring Authorization Server Default Consent Page is vulnerable to Cross-Site Scripting (XSS)

HIGH

8.2

CVSS Score

Published: August 27, 2026 at 06:04 PM UTC

Updated: August 31, 2026 at 11:56 PM UTC

2 products affected across 2 vendorsSpring Authorization ServerSpring Authorization Server

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Severity

HIGH8.2

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

Spring Authorization Server's default consent page renders user-controlled values without HTML entity encoding. When using the DefaultConsentPage, an attacker can craft an OAuth2 authorization request containing a malicious value that is stored server-side and later rendered unencoded in the default consent page presented to the end user. Spring Authorization Server 1.5.0 - 1.5.8 Spring Authorization Server 1.4.0 - 1.4.11

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Spring Authorization Server · Broadcommaven

95%

1.4.0 ≤ v < 1.4.121.5.0 ≤ v < 1.5.9

Affected range stops below 1.4.12, so it looks safe — our inference, not a vendor statement

Affected range stops below 1.5.9, so it looks safe — our inference, not a vendor statement

Spring Authorization Server · Spring

60%

1.4.0 ≤ v ≤ 1.4.111.5.0 ≤ v ≤ 1.5.81.4.0 1.5.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://spring.io/security/cve-2026-59316

References (1)

Vendor Advisory

Source: cverecord

https://spring.io/security/cve-2026-59316

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.2HIGHvmware

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: CHANGED
Confidentiality: HIGH
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusANALYZED

CWE

CWE-79

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