Spring Security OAuth2 Authorization Server: Authorization endpoint performs insufficient validation of the request_uri parameter
CVE-2026-41008GHSA-4r8w-73jc-3m7q
What to do
Vendor fix available. Upgrade each affected package to the fixed version on its release line (org.springframework.security:spring-security-oauth2-authorization-server 7.0.6, 1.5.8), redeploy, then verify what is actually installed.
This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.
Affected packages
Maven org.springframework.security:spring-security-oauth2-authorization-server
- Affected
- >= 7.0.0, <= 7.0.5>= 1.5.0, <= 1.5.7
- Fixed in
- 1.5.8, 7.0.6
Sources
- GitHub Advisory Database and maintainer security advisories on GitHub
GitHub-reviewed advisory GHSA-4r8w-73jc-3m7q lists affected ranges: Maven org.springframework.security:spring-security-oauth2-authorization-server >=7.0.0 =1.5.0 <=1.5.7
VerifiedObserved Structured GitHub Advisory Database record (type=reviewed) from the GitHub REST API.
Severity and exploitation
- Exploitation
- No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
- CVSS
- 6.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- CVE-2026-41008: 0.18% estimated exploitation activity in the next 30 days; percentile 7.58 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description
As published by the source; long descriptions are shortened.
Spring Security Authorization Server's authorization endpoint performs insufficient validation of the requesturi parameter. An attacker can craft a malicious authorization request containing an invalid requesturi and an arbitrary, unvalidated redirecturi, which can lead to an Open Redirect vulnerability. Affected versions: Spring Security 7.0.0 through 7.0.5. Spring Authorization Server 1.5.0 through 1.5.7.
Dates and revisions
- Published by the source
- Last modified by the source
- Source last checked
- Revision 1 · created ·
Published from ghsa record GHSA-4r8w-73jc-3m7q
Agent brief
Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.
# Patch Next advisory brief: CVE-2026-41008 Advisory: Spring Security OAuth2 Authorization Server: Authorization endpoint performs insufficient validation of the request_uri parameter IDs: CVE-2026-41008, GHSA-4r8w-73jc-3m7q Record: https://patchnext.com/advisories/cve-2026-41008 (revision 1, source checked 26 Oct 2026, 16:54 UTC) Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected. Severity: Medium (CVSS 6.1) Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV. Vendor response: Vendor fix available; fixed versions by package: org.springframework.security:spring-security-oauth2-authorization-server 7.0.6, 1.5.8. A vendor fix does not mean a deployment is fixed. ## Affected components - Maven org.springframework.security:spring-security-oauth2-authorization-server: affected >= 7.0.0, <= 7.0.5; >= 1.5.0, <= 1.5.7; fixed in 1.5.8, 7.0.6 ## Suggested inspection (read-only) - Maven org.springframework.security:spring-security-oauth2-authorization-server: check the installed version with your package manager. ## Supported action Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version. ## Required regression checks - Run the test suite and a production build. - Exercise the features that depend on org.springframework.security:spring-security-oauth2-authorization-server. - Repeat the inspection and confirm that only fixed versions remain installed. ## Rollback considerations - Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward. ## Unresolved questions - Which deployments run an affected version? - Exploitation status can change. Check again before lowering the priority. - Mark the work resolved only after the fixed version is verified in production. ## Sources - Verified: https://github.com/advisories/GHSA-4r8w-73jc-3m7q (GitHub-reviewed advisory GHSA-4r8w-73jc-3m7q lists affected ranges: Maven org.springframework.security:spring-security-oauth2-authorization-server >=7.0.0 =1.5.0 <=1.5.7) Commands are suggestions: review each one before running it.
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