CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:NCVE-2022-29188
Medium (6.5) in stripe smokescreen. EPSS 0.9% chance of exploitation in the next 30 days. Fixed in github.com/stripe/smokescreen 0.0.4.
Smokescreen is an HTTP proxy. The primary use case for Smokescreen is to prevent server-side request forgery (SSRF) attacks in which external attackers leverage the behavior of applications to connect to or scan internal infrastructure. Smokescreen also offers an option to deny access to additional (e.g., external) URLs by way of a deny list. There was an issue in Smokescreen that made it possible to bypass the deny list feature by surrounding the hostname with square brackets (e.g. `[example.com]`). This only impacted the HTTP proxy functionality of Smokescreen. HTTPS requests were not impacted. Smokescreen version 0.0.4 contains a patch for this issue.
Severity
- EPSS
- 0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)
- CWE
- CWE-918
- Published
- Modified
- Record from
- the NVD, synced
Affected
- stripe:smokescreen
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-qwrf-gfpj-qvj6 | Go | github.com/stripe/smokescreen | <0.0.4 | 0.0.4 |
| GO-2022-0459 | Go | github.com/stripe/smokescreen | <0.0.4 | 0.0.4 |
References
- https://github.com/stripe/smokescreen/commit/dea7b3c89df000f4072ff9866d61d78e30df6a36
- https://github.com/stripe/smokescreen/security/advisories/GHSA-qwrf-gfpj-qvj6
- https://github.com/stripe/smokescreen/commit/dea7b3c89df000f4072ff9866d61d78e30df6a36
- https://github.com/stripe/smokescreen/security/advisories/GHSA-qwrf-gfpj-qvj6