CVE-2026-6092

Encrypt-then-MAC could fall back to MAC-then-Encrypt when HAVE_ENCRYPT_THEN_MAC is configured

State: Published
Severity: 2.1 Low
Published: Jun 25, 2026
Updated: Jun 26, 2026
Reserved: Apr 10, 2026

Description

When HAVE_ENCRYPT_THEN_MAC is configured, the implementation could fall back to MAC-then-Encrypt rather than enforcing Encrypt-then-MAC.

Scores

CVSS	Score	Vector	Source
4.0	2.1 Low	CVSS:4.0/AV:A/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/U:Clear	wolfSSL

Weaknesses

CWE-757 Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')

Affected Products

Product	Versions
wolfSSLwolfSSL	5.2.0 through 5.9.1Affected

References

https://github.com/wolfSSL/wolfssl/pull/10167patch
https://www.wolfssl.com/docs/security-vulnerabilities/

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.