UBUNTU-CVE-2026-128242

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Source
https://ubuntu.com/security/CVE-2026-128242
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-128242.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-128242
Upstream
  • CVE-2026-128242
Published
2026-11-13T00:00:00Z
Modified
2026-11-13T21:05:41Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

actix-http before 3.20.1 and actix-web before 4.18.2 contain an unbounded decompression vulnerability in encoding::Decoder that lets remote attackers exhaust memory and CPU via compressed bodies. Attackers can send small highly compressed gzip, deflate, Brotli or zstd request bodies to Json, Form, Bytes or String extractors, or serve them to awc clients, causing denial of service.

References

Affected packages

Ubuntu:26.10 / rust-actix-http

Package

Name
rust-actix-http
Purl
pkg:deb/ubuntu/rust-actix-http?arch=source&distro=stonking

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.11.2-2
3.12.0-1
3.13.1-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "librust-actix-http-dev",
            "binary_version": "3.13.1-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-128242.json"

Ubuntu:26.04:LTS / rust-actix-http

Package

Name
rust-actix-http
Purl
pkg:deb/ubuntu/rust-actix-http?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.9.0-3
3.11.2-1
3.11.2-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "librust-actix-http-dev",
            "binary_version": "3.11.2-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-128242.json"