CVE-2026-41707 Spring Security DPoPProofJwtDecoderFactory vulnerable to DPoP Proof Replay

What is CVE-2026-41707?

CVE-2026-41707 is a high-severity authentication bypass vulnerability in Spring Security, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Authentication Bypass by Capture-replay vulnerability in Spring Spring Security allows Spring Security's DPoPProofJwtDecoderFactory contains a cache-based replay attack vulnerability. The internal cache storing JWT ID claims has a strict size limit, allowing attackers to evict legitimate entries by flooding the server with dummy requests, then replay intercepted valid DPoP proofs.

This issue affects Spring Security: 7.1.0, from 7.0.0 through 7.0.6, and from 6.5.0 through 6.5.11.

Weakness: CWE-294

Which versions are affected by CVE-2026-41707?

It affects 1 product.

Products include Vmware Spring Security.

How do I fix CVE-2026-41707?

Upgrade to a fixed version.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-41707 being exploited?

There is no known exploitation of CVE-2026-41707 in the wild and no public exploit code.

Other vulnerabilities in Spring Security

• CVE-2014-3527 Authorization Bypass in Spring Security Critical 9.8
• CVE-2026-59354 Spring Security OAuth2 Authorization Server: Insufficient validation of Dynamic Client Registration metadata Critical 9.6
• CVE-2026-59270 Spring Security embedded UnboundID LDAP server exposes well-known administrative bind DN on all network interfaces Critical 9.4
• CVE-2026-22732 Under Some Conditions Spring Security HTTP Headers Are not Written Critical 9.1
• CVE-2023-34034 Access Control Bypass in Spring Security Critical 9.1

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as CLEANSTART-2026-CJ91094, CLEANSTART-2026-LZ14873, ECHO-5b8b-ed94-89df, GHSA-3488-4mh8-47j4.