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CVE-2022-3215

24
FAUCET Score

CVE-2022-3215 describes an HTTP Response Injection vulnerability affecting Apple SwiftNIO, specifically NIOHTTP1, where user-generated input reflected in HTTP/1.1 response headers can be manipulated. Attackers can inject newlines to bypass security headers or frame entirely false responses, leading to issues like XSS and cache poisoning. This vulnerability carries a CVSS score of 7.5 (High), indicating a network-based attack with low complexity and high impact on integrity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.29.1CPE matchmatch criteria
cpe:2.3:a:apple:swiftnio:*:*:*:*:*:*:*:*
>= 2.30.0, < 2.39.1CPE matchmatch criteria
cpe:2.3:a:apple:swiftnio:*:*:*:*:*:*:*:*
>= 2.40.0, < 2.42.0CPE matchmatch criteria
cpe:2.3:a:apple:swiftnio:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.56%
Probability of exploitation in next 30 days
EPSS Percentile
43.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0056 is in the 20th percentile among its peer group of 51,506 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

djangopatch availablevia llm_extracted
falcopatch availablevia llm_extracted
swiftpatch availablevia ghsa
Product: github.com/apple/swift-nioFixed in: 2.42.0
swiftpatch availablevia ghsa
Product: github.com/apple/swift-nioFixed in: 2.39.1
swiftpatch availablevia ghsa
Product: github.com/apple/swift-nioFixed in: 2.29.1

Vendor Advisories (3)

swiftGHSA-7fj7-39wj-c64fmedium

SwiftNIO vulnerable to Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')

Jun 7, 2023
falcollm-falco-eb51f59681d66bba

HTTP Response Injection attack in NIOHTTP1.

djangollm-django-c390e6b80f3945c4

CVE-2022-3215

References

github.com / apple/swift-nio/security/advisories/GHSA-7fj7-39wj-c64f
Third Party Advisory