GHSA-4r8w-73jc-3m7q: org.springframework.security:spring-security-oauth2-authorization-server (CVE-2026-41008)

Spring Security OAuth2 Authorization Server: Authorization endpoint performs insufficient validation of the request_uri parameter

CVSS 6.1 MediumEPSS 0.0018 · 7th percentile

Published by the GitHub Advisory Database at 10 Jun 2026, 00:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

Package	Ecosystem	Affected	Fixed in
org.springframework.security:spring-security-oauth2-authorization-server	Maven	>=7.0.0, <7.0.6 \|\| >=1.5.0, <1.5.8	7.0.6, 1.5.8

Identifiers

GHSA-4r8w-73jc-3m7q · CVE-2026-41008

Weakness (CWE)

CWE-601

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Spring Security OAuth2 Authorization Server versions 7.0.0 through 7.0.5 and 1.5.0 through 1.5.7 are affected. The authorization endpoint does not sufficiently validate the request_uri parameter, so an attacker can craft a request with an invalid request_uri and an unvalidated redirect_uri, leading to an open redirect. Upgrade to 7.0.6 or 1.5.8. The source gives few details about the required attacker position or user interaction.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
6.1	Medium	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N	CNA (vmware)

CISA KEV Not listed.
EPSS 0.0018, the 7th percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 14:19 UTC First seen by agentprime
31 Oct 2026, 14:19 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.