CVE-2025-22870 (GCVE-0-2025-22870)
Vulnerability from cvelistv5 – Published: 2025-03-12 18:27 – Updated: 2026-04-16 22:39
VLAI
EPSS
VEX
Title
HTTP Proxy bypass using IPv6 Zone IDs in golang.org/x/net
Summary
Matching of hosts against proxy patterns can improperly treat an IPv6 zone ID as a hostname component. For example, when the NO_PROXY environment variable is set to "*.example.com", a request to "[::1%25.example.com]:80` will incorrectly match and not be proxied.
Severity
4.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-18 16:31 UTC
CWE
- CWE-115 Misinterpretation of Input
- CWE-115 - Misinterpretation of Input
Assigner
References
Impacted products
3 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Go standard library | net/http |
Affected:
0 , < 1.23.7
(semver)
Affected: 1.24.0-0 , < 1.24.1 (semver) |
guessed | |
| golang.org/x/net | golang.org/x/net/http/httpproxy |
Affected:
0 , < 0.36.0
(semver)
|
guessed | |
| golang.org/x/net | golang.org/x/net/proxy |
Affected:
0 , < 0.36.0
(semver)
|
guessed |
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Sightings
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
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They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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