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CVE-2020-7622

24
FAUCET Score

CVE-2020-7622 is a critical HTTP Response Splitting vulnerability affecting Jooby framework versions io.jooby:jooby-netty before 1.6.9 and between 2.0.0 and 2.2.1. The flaw stems from the DefaultHttpHeaders not validating header input, allowing attackers to inject malicious content. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with no user interaction, leading to high impacts on confidentiality, integrity, and availability. Despite its severity, there is currently no public exploit code available, nor is there evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.6.9CPE matchmatch criteria
cpe:2.3:a:jooby:jooby:*:*:*:*:*:*:*:*
>= 2.0.0, < 2.2.1CPE matchmatch criteria
cpe:2.3:a:jooby:jooby:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.56%
Probability of exploitation in next 30 days
EPSS Percentile
72.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0156 is in the 60th percentile among its peer group of 36,821 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 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
mavenpatch availablevia ghsa
Product: io.jooby:jooby-nettyFixed in: 2.2.1

Vendor Advisories (1)

mavenGHSA-gv3v-92v6-m48jcritical

Improper Neutralization of CRLF Sequences in HTTP Headers in Jooby ('HTTP Response Splitting)

Apr 3, 2020

References

github.com / jooby-project/jooby/commit/b66e3342cf95205324023cfdf2cb5811e8a6dcf4
PatchThird Party Advisory
github.com / jooby-project/jooby/security/advisories/GHSA-gv3v-92v6-m48j
ExploitThird Party Advisory
snyk.io / vuln/SNYK-JAVA-IOJOOBY-564249
PatchThird Party Advisory