USN-8890-3

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Source
https://ubuntu.com/security/notices/USN-8890-3
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8890-3.json
JSON Data
https://api.osv.dev/v1/vulns/USN-8890-3
Published
2026-11-09T23:12:32Z
Modified
2026-11-11T09:34:48Z
Summary
libsoup3 regression
Details

USN-8890-1 fixed vulnerabilities in libsoup. Unfortunately, that update introduced a memory leak in the cookie jar and could introduce a regression. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that libsoup incorrectly handled certain HTTP/2 requests. A remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-4271)

It was discovered that libsoup incorrectly handled certain HTTPS proxy connections. A remote attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-5119)

It was discovered that libsoup incorrectly parsed certain chunked HTTP requests. A remote attacker could possibly use this issue to bypass security controls. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-6324)

It was discovered that libsoup incorrectly handled proxy authentication credentials. A remote attacker could possibly use this issue to obtain sensitive information. (CVE-2026-66339)

It was discovered that libsoup incorrectly handled certain HTTP Range headers. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2026-77014, CVE-2026-77680)

It was discovered that libsoup incorrectly handled certain HTTP/2 connections. A remote attacker could possibly use this issue to obtain sensitive information or execute arbitrary code. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-85197)

It was discovered that libsoup incorrectly handled certain HTTP/2 transfers. A remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-85534)

References

Affected packages

Ubuntu:24.04:LTS / libsoup3

Package

Name
libsoup3
Purl
pkg:deb/ubuntu/libsoup3?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.4.4-5ubuntu0.11

Affected versions

3.*
3.4.2-4
3.4.4-1
3.4.4-2
3.4.4-4
3.4.4-5
3.4.4-5build1
3.4.4-5build2
3.4.4-5ubuntu0.1
3.4.4-5ubuntu0.2
3.4.4-5ubuntu0.3
3.4.4-5ubuntu0.4
3.4.4-5ubuntu0.5
3.4.4-5ubuntu0.6
3.4.4-5ubuntu0.7
3.4.4-5ubuntu0.8
3.4.4-5ubuntu0.9
3.4.4-5ubuntu0.10

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "gir1.2-soup-3.0",
            "binary_version": "3.4.4-5ubuntu0.11"
        },
        {
            "binary_name": "libsoup-3.0-0",
            "binary_version": "3.4.4-5ubuntu0.11"
        },
        {
            "binary_name": "libsoup-3.0-common",
            "binary_version": "3.4.4-5ubuntu0.11"
        },
        {
            "binary_name": "libsoup-3.0-tests",
            "binary_version": "3.4.4-5ubuntu0.11"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [],
    "ecosystem": "Ubuntu:24.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8890-3.json"

Ubuntu:26.10 / libsoup3

Package

Name
libsoup3
Purl
pkg:deb/ubuntu/libsoup3?arch=source&distro=stonking

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.6.6-1ubuntu3.2

Affected versions

3.*
3.6.6-1
3.6.6-1ubuntu3
3.6.6-1ubuntu3.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "gir1.2-soup-3.0",
            "binary_version": "3.6.6-1ubuntu3.2"
        },
        {
            "binary_name": "libsoup-3.0-0",
            "binary_version": "3.6.6-1ubuntu3.2"
        },
        {
            "binary_name": "libsoup-3.0-common",
            "binary_version": "3.6.6-1ubuntu3.2"
        },
        {
            "binary_name": "libsoup-3.0-tests",
            "binary_version": "3.6.6-1ubuntu3.2"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [],
    "ecosystem": "Ubuntu:26.10"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8890-3.json"

Ubuntu:26.04:LTS / libsoup3

Package

Name
libsoup3
Purl
pkg:deb/ubuntu/libsoup3?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.6.6-1ubuntu0.3

Affected versions

3.*
3.6.5-4
3.6.5-5
3.6.5-6
3.6.5-7
3.6.5-9
3.6.6-1
3.6.6-1ubuntu0.1
3.6.6-1ubuntu0.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "gir1.2-soup-3.0",
            "binary_version": "3.6.6-1ubuntu0.3"
        },
        {
            "binary_name": "libsoup-3.0-0",
            "binary_version": "3.6.6-1ubuntu0.3"
        },
        {
            "binary_name": "libsoup-3.0-common",
            "binary_version": "3.6.6-1ubuntu0.3"
        },
        {
            "binary_name": "libsoup-3.0-tests",
            "binary_version": "3.6.6-1ubuntu0.3"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [],
    "ecosystem": "Ubuntu:26.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8890-3.json"