CVE-2025-22870 (GCVE-0-2025-22870)

Vulnerability from cvelistv5 – Published: 2025-03-12 18:27 – Updated: 2026-04-16 22:39
VLAI
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)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-18 16:31 UTC
CWE
Assigner
References
Impacted 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 Create a notification for this product.
golang.org/x/net golang.org/x/net/http/httpproxy Affected: 0 , < 0.36.0 (semver)
guessed Create a notification for this product.
golang.org/x/net golang.org/x/net/proxy Affected: 0 , < 0.36.0 (semver)
guessed Create a notification for this product.
Credits
Juho Forsén of Mattermost
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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