CVE-2026-41707

EUVD-2026-66187

25.08.2026, 23:16

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.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	7.4 HIGH	NETWORK	HIGH	NONE	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Base Score

CVSS 3.x

EPSS Score

Percentile: 31.17%

Affected Products (NVD)

Vendor	Product	Version
vmware	spring_security	6.5.0 ≤ 𝑥 < 6.5.12
vmware	spring_security	7.0.0 ≤ 𝑥 < 7.0.6.1
vmware	spring_security	7.1.0 ≤ 𝑥 < 7.1.0.1

𝑥

= Vulnerable software versions

Common Weakness Enumeration

CWE-294 - Authentication Bypass by Capture-replay
A capture-replay flaw exists when the design of the software makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes).

References

https://spring.io/security/cve-2026-41707