Vulnerability · Published Jun 25, 2026 · Assigned by wolfSSL
CVE-2026-7532iPAddress name constraints not enforced when WOLFSSL_IP_ALT_NAME is undefined
Medium 5.7
In plain English
A medium-severity improper certificate validation in wolfSSL from wolfSSL. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 4.0)5.7Medium
Exploit odds (30 days)0.3%top 78.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
iPAddress name constraints bypass when WOLFSSL_IP_ALT_NAME is not defined. IP address name constraints are not enforced in that configuration, allowing a certificate to bypass an issuing CA's IP address constraints.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.24 | wolfssl | 5.9.2-r0 | ALPINE-CVE-2026-7532 |
| Debian:12 | wolfssl | no fix listed | DEBIAN-CVE-2026-7532 |
| Debian:13 | wolfssl | no fix listed | DEBIAN-CVE-2026-7532 |
| Ubuntu:22.04:LTS | wolfssl | no fix listed | UBUNTU-CVE-2026-7532 |
| Ubuntu:24.04:LTS | wolfssl | no fix listed | UBUNTU-CVE-2026-7532 |
| Ubuntu:25.10 | wolfssl | no fix listed | UBUNTU-CVE-2026-7532 |
| Ubuntu:26.04:LTS | wolfssl | no fix listed | UBUNTU-CVE-2026-7532 |
| Ubuntu:26.10 | wolfssl | no fix listed | UBUNTU-CVE-2026-7532 |
Affected products (as reported)
Weakness: CWE-295 · Vector: CVSS:4.0/AV:A/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N