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TI-2021-19390 Aliases CVE-2021-43466GHSA-qcj6-jqrg-4wp2

In the thymeleaf-spring5:3.0.12 component, thymeleaf combined with specific scenarios in…

Priority MEDIUM 49CWE-94Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-94.

Summary

In the thymeleaf-spring5:3.0.12 component, thymeleaf combined with specific scenarios in template injection may lead to remote code execution.

Why it matters now

EPSS 0.03993 90th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed org.thymeleaf:thymeleaf-spring5 (Maven): 3.0.13.RELEASE

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—org.thymeleaf:thymeleaf-spring5 (Maven)before 3.0.13.RELEASE3.0.13.RELEASEPatch availableGHSA-qcj6-jqrg-4wp2
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • org.thymeleaf:thymeleaf-spring5 (Maven) Vendor— Affected before 3.0.13.RELEASE Fixed in 3.0.13.RELEASE Patch available GHSA-qcj6-jqrg-4wp2

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:thymeleaf:thymeleaf:3.0.12:*:*:*:*:*:*:*3.0.12Vulnerablethymeleaf
  • cpe:2.3:a:thymeleaf:thymeleaf:3.0.12:*:*:*:*:*:*:* Versions 3.0.12 Vulnerable ·thymeleaf

Remediation

  • Fix · GHSA-qcj6-jqrg-4wp2 org.thymeleaf:thymeleaf-spring5 (Maven) Fixed in 3.0.13.RELEASE Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-43466
  2. 2026-10-03 Alias added: GHSA-qcj6-jqrg-4wp2

References

Exploit 1

Advisory 2

Other 3

  • TI-2023-19687 Thymeleaf through 3.1.1.RELEASE, as used in spring-boot-admin (aka Spring Boot Admin)… CVSS 3.1HIGH 7.5
  • TI-2026-29229 Improper neutralization of specific syntax patterns for unauthorized expressions in Thymeleaf CVSS 3.1CRITICAL 9.1
  • TI-2026-29228 Improper restriction of the scope of accessible objects in Thymeleaf expressions CVSS 3.1CRITICAL 9.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences