GHSA-3gv6-g396-9v4r

Suggest an improvement
Source
https://github.com/advisories/GHSA-3gv6-g396-9v4r
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-3gv6-g396-9v4r/GHSA-3gv6-g396-9v4r.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-3gv6-g396-9v4r
Aliases
  • CVE-2026-28367
Published
2026-03-27T18:31:27Z
Modified
2026-09-10T03:50:36Z
Severity
  • 8.7 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N CVSS Calculator
Summary
Undertow is Vulnerable to HTTP Request/Response Smuggling
Details

A flaw was found in Undertow. A remote attacker can exploit this vulnerability by sending \r\r\r as a header block terminator. This can be used for request smuggling with certain proxy servers, such as older versions of Apache Traffic Server and Google Cloud Classic Application Load Balancer, potentially leading to unauthorized access or manipulation of web requests.

Database specific 
{
    "cwe_ids": [
        "CWE-444"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-31T23:13:55Z",
    "nvd_published_at": "2026-03-27T17:16:27Z",
    "severity": "HIGH"
}
References

Affected packages

Maven / io.undertow:undertow-parent

Package

Name
io.undertow:undertow-parent
View open source insights on deps.dev
Purl
pkg:maven/io.undertow/undertow-parent

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Last Affected
2.3.23.Final

Affected versions

1.*
1.0.0.Alpha1
1.0.0.Alpha2
1.0.0.Alpha3
1.0.0.Alpha4
1.0.0.Alpha5
1.0.0.Alpha6
1.0.0.Alpha7
1.0.0.Alpha8
1.0.0.Alpha9
1.0.0.Alpha10
1.0.0.Alpha11
1.0.0.Alpha12
1.0.0.Alpha13
1.0.0.Alpha14
1.0.0.Alpha15
1.0.0.Alpha16
1.0.0.Alpha17
1.0.0.Alpha18
1.0.0.Alpha19
1.0.0.Alpha20
1.0.0.Alpha21
1.0.0.Alpha22
1.0.0.Beta1
1.0.0.Beta2
1.0.0.Beta3
1.0.0.Beta4
1.0.0.Beta5
1.0.0.Beta6
1.0.0.Beta7
1.0.0.Beta8
1.0.0.Beta9
1.0.0.Beta10
1.0.0.Beta11
1.0.0.Beta12
1.0.0.Beta13
1.0.0.Beta14
1.0.0.Beta15
1.0.0.Beta16
1.0.0.Beta17
1.0.0.Beta18
1.0.0.Beta19
1.0.0.Beta20
1.0.0.Beta21
1.0.0.Beta22
1.0.0.Beta23
1.0.0.Beta24
1.0.0.Beta25
1.0.0.Beta26
1.0.0.Beta27
1.0.0.Beta28
1.0.0.Beta29
1.0.0.Beta30
1.0.0.Beta31
1.0.0.Beta32
1.0.0.Beta33
1.0.0.CR1
1.0.0.CR2
1.0.0.CR3
1.0.0.CR4
1.0.0.CR5
1.0.0.Final
1.0.1.Final
1.0.2.Final
1.0.3.Final
1.0.4.Final
1.0.5.Final
1.0.6.Final
1.0.7.Final
1.0.8.Final
1.0.9.Final
1.0.10.Final
1.0.11.Final
1.0.12.Final
1.0.13.Final
1.0.14.Final
1.0.15.Final
1.0.16.Final
1.0.17.Final
1.0.18.Final
1.0.19.Final
1.1.0.Beta1
1.1.0.Beta2
1.1.0.Beta3
1.1.0.Beta4
1.1.0.Beta5
1.1.0.Beta6
1.1.0.Beta7
1.1.0.Beta8
1.1.0.CR1
1.1.0.CR2
1.1.0.CR3
1.1.0.CR4
1.1.0.CR5
1.1.0.CR6
1.1.0.CR7
1.1.0.CR8
1.1.0.Final
1.1.1.Final
1.1.2.Final
1.1.3.Final
1.1.4.Final
1.1.5.Final
1.1.6.Final
1.1.7.Final
1.1.8.Final
1.1.9.Final
1.2.0.Beta1
1.2.0.Beta2
1.2.0.Beta3
1.2.0.Beta4
1.2.0.Beta5
1.2.0.Beta6
1.2.0.Beta7
1.2.0.Beta8
1.2.0.Beta9
1.2.0.Beta10
1.2.0.CR1
1.2.0.Final
1.2.1.Final
1.2.2.Final
1.2.3.Final
1.2.4.Final
1.2.5.Final
1.2.6.Final
1.2.7.Final
1.2.8.Final
1.2.9.Final
1.2.10.Final
1.2.11.Final
1.2.12.Final
1.3.0.Beta1
1.3.0.Beta2
1.3.0.Beta3
1.3.0.Beta4
1.3.0.Beta5
1.3.0.Beta6
1.3.0.Beta7
1.3.0.Beta8
1.3.0.Beta9
1.3.0.Beta10
1.3.0.Beta11
1.3.0.Beta12
1.3.0.Beta13
1.3.0.CR1
1.3.0.CR2
1.3.0.CR3
1.3.0.Final
1.3.1.Final
1.3.2.Final
1.3.3.Final
1.3.4.Final
1.3.5.Final
1.3.6.Final
1.3.7.Final
1.3.8.Final
1.3.9.Final
1.3.10.Final
1.3.11.Final
1.3.12.Final
1.3.13.Final
1.3.14.Final
1.3.15.Final
1.3.16.Final
1.3.17.Final
1.3.18.Final
1.3.19.Final
1.3.20.Final
1.3.21.Final
1.3.22.Final
1.3.23.Final
1.3.24.Final
1.3.25.Final
1.3.26.Final
1.3.27.Final
1.3.28.Final
1.3.29.Final
1.3.30.Final
1.3.31.Final
1.3.32.Final
1.3.33.Final
1.4.0.Beta1
1.4.0.CR1
1.4.0.CR2
1.4.0.CR3
1.4.0.CR4
1.4.0.Final
1.4.1.Final
1.4.2.Final
1.4.3.Final
1.4.4.Final
1.4.5.Final
1.4.6.Final
1.4.7.Final
1.4.8.Final
1.4.9.Final
1.4.10.Final
1.4.11.Final
1.4.12.Final
1.4.13.Final
1.4.14.Final
1.4.15.Final
1.4.16.Final
1.4.17.Final
1.4.18.Final
1.4.19.Final
1.4.20.Final
1.4.21.Final
1.4.22.Final
1.4.23.Final
1.4.24.Final
1.4.25.Final
1.4.26.Final
1.4.27.Final
1.4.28.Final
2.*
2.0.0.Alpha1
2.0.0.Beta1
2.0.0.Final
2.0.1.Final
2.0.2.Final
2.0.3.Final
2.0.4.Final
2.0.5.Final
2.0.6.Final
2.0.7.Final
2.0.8.Final
2.0.9.Final
2.0.10.Final
2.0.11.Final
2.0.12.Final
2.0.13.Final
2.0.14.Final
2.0.15.Final
2.0.16.Final
2.0.17.Final
2.0.18.Final
2.0.19.Final
2.0.20.Final
2.0.21.Final
2.0.22.Final
2.0.23.Final
2.0.24.Final
2.0.25.Final
2.0.26.Final
2.0.27.Final
2.0.28.Final
2.0.29.Final
2.0.30.Final
2.0.31.Final
2.0.32.Final
2.0.33.Final
2.0.34.Final
2.0.35.Final
2.0.36.Final
2.0.37.Final
2.0.38.Final
2.0.39.Final
2.0.40.Final
2.0.41.Final
2.0.42.Final
2.1.0.Final
2.1.1.Final
2.1.2.Final
2.1.3.Final
2.1.4.Final
2.1.5.Final
2.1.6.Final
2.1.7.Final
2.1.8.Final
2.2.0.Final
2.2.1.Final
2.2.2.Final
2.2.3.Final
2.2.4.Final
2.2.5.Final
2.2.6.Final
2.2.7.Final
2.2.8.Final
2.2.9.Final
2.2.10.Final
2.2.11.Final
2.2.12.Final
2.2.13.Final
2.2.14.Final
2.2.15.Final
2.2.16.Final
2.2.17.Final
2.2.18.Final
2.2.19.Final
2.2.20.Final
2.2.21.Final
2.2.22.Final
2.2.23.Final
2.2.24.Final
2.2.25.Final
2.2.26.Final
2.2.27.Final
2.2.28.Final
2.2.29.Final
2.2.30.Final
2.2.31.Final
2.2.32.Final
2.2.33.Final
2.2.34.Final
2.2.35.Final
2.2.36.Final
2.2.37.Final
2.2.38.Final
2.2.39.Final
2.2.40.Final
2.3.0.Alpha1
2.3.0.Alpha2
2.3.0.Beta1
2.3.0.Final
2.3.1.Final
2.3.2.Final
2.3.3.Final
2.3.4.Final
2.3.5.Final
2.3.6.Final
2.3.7.Final
2.3.8.Final
2.3.9.Final
2.3.10.Final
2.3.11.Final
2.3.12.Final
2.3.13.Final
2.3.14.Final
2.3.15.Final
2.3.16.Final
2.3.17.Final
2.3.18.Final
2.3.19.Final
2.3.20.Final
2.3.21.Final
2.3.22.Final
2.3.23.Final

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-3gv6-g396-9v4r/GHSA-3gv6-g396-9v4r.json"