USN-8998-1

It was discovered that Squid incorrectly handled certain HTTP Transfer- Encoding headers. An attacker could possibly use this issue to perform HTTP request smuggling attacks, bypass security mechanisms, or poison web caches.

References

Affected packages

Ubuntu:26.04:LTS / squid

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

7.7-0ubuntu0.26.04.2

Affected versions

6.*

6.13-1ubuntu4

6.13-1ubuntu5

7.*

7.2-2ubuntu1

7.2-2ubuntu2

7.2-2ubuntu2.2

7.7-0ubuntu0.26.04.1

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "squid",
            "binary_version": "7.7-0ubuntu0.26.04.2"
        },
        {
            "binary_name": "squid-common",
            "binary_version": "7.7-0ubuntu0.26.04.2"
        },
        {
            "binary_name": "squid-openssl",
            "binary_version": "7.7-0ubuntu0.26.04.2"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "id": "CVE-2026-61642",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:26.04:LTS"
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8998-1.json"