CVE-2026-41003 json
Unencoded HTML Outputs in Spring Security May Allow Cross-Site Scripting
published 4mo ago modified 2mo ago also GHSA-3pjj-qpw6-5fcm , EUVD-2026-35887
- cvss
- 7.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 10%
- public exploits
- 0
- none known
Summary
An attacker able to influence values in RelyingPartyRegistration may be able to run arbitrary code on HTML forms generated by Spring Security filters.
Affected versions: Spring Security 5.7.0 through 5.7.23; 5.8.0 through 5.8.25; 6.3.0 through 6.3.16; 6.4.0 through 6.4.16; 6.5.0 through 6.5.10; 7.0.0 through 7.0.5.
Patch / fix
- maven org.springframework.security:spring-security-saml2-service-provider 6.5.11, 7.0.6
- Spring Spring Security 5.7.24, 5.8.26, 6.3.17, 6.4.17, 6.5.10.2, 7.0.5.1
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4mo ago
Exploit prediction
0.20% chance of exploitation in the next 30 days, higher than 10% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.6 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N |
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| GitHub | 3.1 | 7.6 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.springframework.security:spring-security-saml2-service-provider | >=7.0.0, <7.0.6 >=6.5.0, <6.5.11 >=6.4.0, <=6.4.16 >=6.3.0, <=6.3.16 >=5.8.0, <=5.8.25 <=5.7.23 |
7.0.6 6.5.11 |
Affected products
- Spring Spring Security
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
Sources
- CVE List CVE-2026-41003
- GitHub Advisory GHSA-3pjj-qpw6-5fcm
- NVD CVE-2026-41003
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