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CVE-2022-29188

23
FAUCET Score

CVE-2022-29188 is a medium-severity vulnerability affecting Smokescreen, an HTTP proxy designed to prevent Server-Side Request Forgery (SSRF) attacks. An attacker could bypass Smokescreen's deny list feature by enclosing a hostname in square brackets, allowing access to otherwise blocked external URLs. This vulnerability, with a CVSS score of 6.5, has a low attack complexity and could lead to limited confidentiality and integrity impacts. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.0.4CPE matchmatch criteria
cpe:2.3:a:stripe:smokescreen:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.81%
Probability of exploitation in next 30 days
EPSS Percentile
53.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0081 is in the 33rd percentile among its peer group of 23,705 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/stripe/smokescreenFixed in: 0.0.4

Vendor Advisories (1)

goGHSA-qwrf-gfpj-qvj6medium

Smokescreen SSRF via deny list bypass (square brackets)

May 24, 2022

References

github.com / stripe/smokescreen/commit/dea7b3c89df000f4072ff9866d61d78e30df6a36
PatchThird Party Advisory
github.com / stripe/smokescreen/security/advisories/GHSA-qwrf-gfpj-qvj6
Third Party Advisory