CVE-2025-58189
MEDIUMCVSS 5.3/10EPSS 0.44%
Last modified
CVE-2025-58189 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. When Conn.Handshake fails during ALPN negotiation the error contains attacker controlled information (the ALPN protocols sent by the client) which is not escaped.. EPSS estimates a 0.44% chance of exploitation in the next 30 days.
Description
When Conn.Handshake fails during ALPN negotiation the error contains attacker controlled information (the ALPN protocols sent by the client) which is not escaped.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Golang | Go | < 1.24.8 |
| Golang | Go | >= 1.25.0, < 1.25.2 |
References
- https://go.dev/issue/75652Issue Tracking
- https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bIMailing List, Release Notes
- https://pkg.go.dev/vuln/GO-2025-4008Vendor Advisory
- http://www.openwall.com/lists/oss-security/2025/10/08/1Mailing List, Release Notes, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2025-58189?
When Conn.Handshake fails during ALPN negotiation the error contains attacker controlled information (the ALPN protocols sent by the client) which is not escaped.
How severe is CVE-2025-58189?
CVE-2025-58189 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.44% probability of exploitation in the next 30 days.
How do I fix CVE-2025-58189?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2025-58189?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST