UBUNTU-CVE-2026-9080

Source
https://ubuntu.com/security/CVE-2026-9080
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-9080.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-9080
Upstream
Downstream
Related
Published
2026-06-24T14:00:00Z
Modified
2026-07-08T09:45:47.517553690Z
Severity
  • 7.3 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

Calling curl_easy_pause() within the event-based CURLMOPT_SOCKETFUNCTION callback triggers a use-after-free vulnerability, where libcurl attempts to store a flag using a dangling struct pointer immediately after that pointer's memory has been freed.

References

Affected packages

Ubuntu:25.10 / curl

Package

Name
curl
Purl
pkg:deb/ubuntu/curl?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
8.14.1-2ubuntu1.4

Affected versions

8.*
8.12.1-3ubuntu1
8.13.0-5ubuntu1
8.14.1-1ubuntu2
8.14.1-1ubuntu3
8.14.1-2ubuntu1
8.14.1-2ubuntu1.1
8.14.1-2ubuntu1.2
8.14.1-2ubuntu1.3

Ecosystem specific

{
    "priority_reason": "Upstream defined this as low severity",
    "binaries": [
        {
            "binary_version": "8.14.1-2ubuntu1.4",
            "binary_name": "curl"
        },
        {
            "binary_version": "8.14.1-2ubuntu1.4",
            "binary_name": "libcurl3t64-gnutls"
        },
        {
            "binary_version": "8.14.1-2ubuntu1.4",
            "binary_name": "libcurl4t64"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-9080.json"

Ubuntu:26.04:LTS / curl

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
8.18.0-1ubuntu2.2

Affected versions

8.*
8.14.1-2ubuntu1
8.17.0-1ubuntu1
8.18.0-1ubuntu1
8.18.0-1ubuntu2
8.18.0-1ubuntu2.1

Ecosystem specific

{
    "priority_reason": "Upstream defined this as low severity",
    "binaries": [
        {
            "binary_version": "8.18.0-1ubuntu2.2",
            "binary_name": "curl"
        },
        {
            "binary_version": "8.18.0-1ubuntu2.2",
            "binary_name": "libcurl3t64-gnutls"
        },
        {
            "binary_version": "8.18.0-1ubuntu2.2",
            "binary_name": "libcurl4t64"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-9080.json"