UBUNTU-CVE-2026-67355

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Source

https://ubuntu.com/security/CVE-2026-67355

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-67355.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-67355

Upstream

CVE-2026-67355

Published

2026-08-01T13:17:00Z

Modified

2026-08-06T00:23:23Z

Severity

5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
8.2 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

guzzlehttp/guzzle versions before 7.15.1 fail to preserve host-only cookie scope, storing the request host in the Domain field instead of marking cookies as host-only. Attackers controlling child hosts can receive host-only cookies intended only for parent hosts, potentially disclosing session identifiers and authorization tokens when the same cookie jar is reused across trust boundaries.

References

Affected packages

Ubuntu:24.04:LTS / guzzle

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

7.*

7.4.5-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "7.4.5-1",
            "binary_name": "php-guzzlehttp-guzzle"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-67355.json"

Ubuntu:26.04:LTS / guzzle