What’s Vulnerable › Vulnerabilities

CVE-2022-27536

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-04-20 · updated 2026-06-17
• Weakness: CWE-295

Description

Certificate.Verify in crypto/x509 in Go 1.18.x before 1.18.1 can be caused to panic on macOS when presented with certain malformed certificates. This allows a remote TLS server to cause a TLS client to panic.

Affected products

• Go: from 1.18.0 before 1.18.1 — fixed in 1.18.1

How to fix

Upgrade to a fixed version: Go 1.18.1. Check the vendor advisory for mitigations.

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-744259.pdf
• https://groups.google.com/g/golang-announce
• https://groups.google.com/g/golang-announce/c/oecdBNLOml8
• https://security.gentoo.org/glsa/202208-02
• https://security.netapp.com/advisory/ntap-20230309-0001/
• https://cert-portal.siemens.com/productcert/pdf/ssa-744259.pdf
• https://groups.google.com/g/golang-announce
• https://groups.google.com/g/golang-announce/c/oecdBNLOml8
• https://security.gentoo.org/glsa/202208-02
• https://security.netapp.com/advisory/ntap-20230309-0001/

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