UBUNTU-CVE-2026-8932

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Source
https://ubuntu.com/security/CVE-2026-8932
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8932.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-8932
Upstream
Downstream
Related
Published
2026-06-24T14:00:00Z
Modified
2026-09-10T00:56:35Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

libcurl would reuse a previously created connection even when some mTLS config related option had been changed that should have prohibited reuse. libcurl keeps previously used connections in a connection pool for subsequent transfers to reuse if one of them matches the setup. However, some TLS settings related to client certificates were left out from the configuration match checks, making them match too easily. In particular options related to the private key.

References

Affected packages

Ubuntu:22.04:LTS
curl

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
7.81.0-1ubuntu1.27

Affected versions

7.*
7.74.0-1.3ubuntu2
7.74.0-1.3ubuntu3
7.80.0-3
7.81.0-1
7.81.0-1ubuntu1.1
7.81.0-1ubuntu1.2
7.81.0-1ubuntu1.3
7.81.0-1ubuntu1.4
7.81.0-1ubuntu1.6
7.81.0-1ubuntu1.7
7.81.0-1ubuntu1.8
7.81.0-1ubuntu1.10
7.81.0-1ubuntu1.11
7.81.0-1ubuntu1.13
7.81.0-1ubuntu1.14
7.81.0-1ubuntu1.15
7.81.0-1ubuntu1.16
7.81.0-1ubuntu1.17
7.81.0-1ubuntu1.18
7.81.0-1ubuntu1.19
7.81.0-1ubuntu1.20
7.81.0-1ubuntu1.21
7.81.0-1ubuntu1.22
7.81.0-1ubuntu1.23
7.81.0-1ubuntu1.24
7.81.0-1ubuntu1.25
7.81.0-1ubuntu1.26

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "curl",
            "binary_version": "7.81.0-1ubuntu1.27"
        },
        {
            "binary_name": "libcurl3-gnutls",
            "binary_version": "7.81.0-1ubuntu1.27"
        },
        {
            "binary_name": "libcurl3-nss",
            "binary_version": "7.81.0-1ubuntu1.27"
        },
        {
            "binary_name": "libcurl4",
            "binary_version": "7.81.0-1ubuntu1.27"
        }
    ],
    "priority_reason": "Upstream defined this as low severity"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8932.json"
Ubuntu:24.04:LTS
curl

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
8.5.0-2ubuntu10.13

Affected versions

8.*
8.2.1-1ubuntu3
8.2.1-1ubuntu3.1
8.4.0-2ubuntu1
8.5.0-2ubuntu1
8.5.0-2ubuntu2
8.5.0-2ubuntu8
8.5.0-2ubuntu9
8.5.0-2ubuntu10
8.5.0-2ubuntu10.1
8.5.0-2ubuntu10.2
8.5.0-2ubuntu10.3
8.5.0-2ubuntu10.4
8.5.0-2ubuntu10.5
8.5.0-2ubuntu10.6
8.5.0-2ubuntu10.7
8.5.0-2ubuntu10.8
8.5.0-2ubuntu10.9
8.5.0-2ubuntu10.10
8.5.0-2ubuntu10.11
8.5.0-2ubuntu10.12

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "curl",
            "binary_version": "8.5.0-2ubuntu10.13"
        },
        {
            "binary_name": "libcurl3t64-gnutls",
            "binary_version": "8.5.0-2ubuntu10.13"
        },
        {
            "binary_name": "libcurl4t64",
            "binary_version": "8.5.0-2ubuntu10.13"
        }
    ],
    "priority_reason": "Upstream defined this as low severity"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8932.json"
Ubuntu:25.10
curl

Package

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

Affected ranges

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

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
8.14.1-2ubuntu1.4
8.14.1-2ubuntu1.5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "curl",
            "binary_version": "8.14.1-2ubuntu1.5"
        },
        {
            "binary_name": "libcurl3t64-gnutls",
            "binary_version": "8.14.1-2ubuntu1.5"
        },
        {
            "binary_name": "libcurl4t64",
            "binary_version": "8.14.1-2ubuntu1.5"
        }
    ],
    "priority_reason": "Upstream defined this as low severity"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8932.json"
Ubuntu:26.04:LTS
curl

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
8.18.0-1ubuntu2.5

Affected versions

8.*
8.14.1-2ubuntu1
8.17.0-1ubuntu1
8.18.0-1ubuntu1
8.18.0-1ubuntu2
8.18.0-1ubuntu2.1
8.18.0-1ubuntu2.2
8.18.0-1ubuntu2.3
8.18.0-1ubuntu2.4

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "curl",
            "binary_version": "8.18.0-1ubuntu2.5"
        },
        {
            "binary_name": "libcurl3t64-gnutls",
            "binary_version": "8.18.0-1ubuntu2.5"
        },
        {
            "binary_name": "libcurl4t64",
            "binary_version": "8.18.0-1ubuntu2.5"
        }
    ],
    "priority_reason": "Upstream defined this as low severity"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8932.json"
Ubuntu:Pro:14.04:LTS
curl

Package

Name
curl
Purl
pkg:deb/ubuntu/curl?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

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

Affected versions

7.*
7.32.0-1ubuntu1
7.33.0-1ubuntu1
7.34.0-1ubuntu1
7.35.0-1ubuntu1
7.35.0-1ubuntu2
7.35.0-1ubuntu2.1
7.35.0-1ubuntu2.2
7.35.0-1ubuntu2.3
7.35.0-1ubuntu2.5
7.35.0-1ubuntu2.6
7.35.0-1ubuntu2.7
7.35.0-1ubuntu2.8
7.35.0-1ubuntu2.9
7.35.0-1ubuntu2.10
7.35.0-1ubuntu2.11
7.35.0-1ubuntu2.12
7.35.0-1ubuntu2.13
7.35.0-1ubuntu2.14
7.35.0-1ubuntu2.15
7.35.0-1ubuntu2.16
7.35.0-1ubuntu2.17
7.35.0-1ubuntu2.19
7.35.0-1ubuntu2.20
7.35.0-1ubuntu2.20+esm2
7.35.0-1ubuntu2.20+esm3
7.35.0-1ubuntu2.20+esm4
7.35.0-1ubuntu2.20+esm5
7.35.0-1ubuntu2.20+esm6
7.35.0-1ubuntu2.20+esm7
7.35.0-1ubuntu2.20+esm8
7.35.0-1ubuntu2.20+esm9
7.35.0-1ubuntu2.20+esm10
7.35.0-1ubuntu2.20+esm11
7.35.0-1ubuntu2.20+esm12
7.35.0-1ubuntu2.20+esm13
7.35.0-1ubuntu2.20+esm14
7.35.0-1ubuntu2.20+esm15
7.35.0-1ubuntu2.20+esm16
7.35.0-1ubuntu2.20+esm17
7.35.0-1ubuntu2.20+esm18
7.35.0-1ubuntu2.20+esm19
7.35.0-1ubuntu2.20+esm20
7.35.0-1ubuntu2.20+esm21
7.35.0-1ubuntu2.20+esm22

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "curl",
            "binary_version": "7.35.0-1ubuntu2.20+esm22"
        },
        {
            "binary_name": "libcurl3",
            "binary_version": "7.35.0-1ubuntu2.20+esm22"
        },
        {
            "binary_name": "libcurl3-gnutls",
            "binary_version": "7.35.0-1ubuntu2.20+esm22"
        },
        {
            "binary_name": "libcurl3-nss",
            "binary_version": "7.35.0-1ubuntu2.20+esm22"
        }
    ],
    "priority_reason": "Upstream defined this as low severity"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8932.json"
Ubuntu:Pro:16.04:LTS
curl

Package

Name
curl
Purl
pkg:deb/ubuntu/curl?arch=source&distro=esm-infra-legacy%2Fxenial

Affected ranges

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

Affected versions

7.*
7.43.0-1ubuntu2
7.45.0-1ubuntu1
7.46.0-1ubuntu1
7.47.0-1ubuntu1
7.47.0-1ubuntu2
7.47.0-1ubuntu2.1
7.47.0-1ubuntu2.2
7.47.0-1ubuntu2.3
7.47.0-1ubuntu2.4
7.47.0-1ubuntu2.5
7.47.0-1ubuntu2.6
7.47.0-1ubuntu2.7
7.47.0-1ubuntu2.8
7.47.0-1ubuntu2.9
7.47.0-1ubuntu2.11
7.47.0-1ubuntu2.12
7.47.0-1ubuntu2.13
7.47.0-1ubuntu2.14
7.47.0-1ubuntu2.15
7.47.0-1ubuntu2.16
7.47.0-1ubuntu2.18
7.47.0-1ubuntu2.19
7.47.0-1ubuntu2.19+esm1
7.47.0-1ubuntu2.19+esm2
7.47.0-1ubuntu2.19+esm3
7.47.0-1ubuntu2.19+esm4
7.47.0-1ubuntu2.19+esm5
7.47.0-1ubuntu2.19+esm6
7.47.0-1ubuntu2.19+esm7
7.47.0-1ubuntu2.19+esm8
7.47.0-1ubuntu2.19+esm9
7.47.0-1ubuntu2.19+esm10
7.47.0-1ubuntu2.19+esm11
7.47.0-1ubuntu2.19+esm12
7.47.0-1ubuntu2.19+esm13
7.47.0-1ubuntu2.19+esm15
7.47.0-1ubuntu2.19+esm16
7.47.0-1ubuntu2.19+esm17
7.47.0-1ubuntu2.19+esm18

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "curl",
            "binary_version": "7.47.0-1ubuntu2.19+esm18"
        },
        {
            "binary_name": "libcurl3",
            "binary_version": "7.47.0-1ubuntu2.19+esm18"
        },
        {
            "binary_name": "libcurl3-gnutls",
            "binary_version": "7.47.0-1ubuntu2.19+esm18"
        },
        {
            "binary_name": "libcurl3-nss",
            "binary_version": "7.47.0-1ubuntu2.19+esm18"
        }
    ],
    "priority_reason": "Upstream defined this as low severity"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8932.json"
Ubuntu:Pro:18.04:LTS
curl

Package

Name
curl
Purl
pkg:deb/ubuntu/curl?arch=source&distro=esm-infra%2Fbionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
7.58.0-2ubuntu3.24+esm12

Affected versions

7.*
7.55.1-1ubuntu2
7.55.1-1ubuntu2.1
7.57.0-1ubuntu1
7.58.0-2ubuntu1
7.58.0-2ubuntu2
7.58.0-2ubuntu3
7.58.0-2ubuntu3.1
7.58.0-2ubuntu3.2
7.58.0-2ubuntu3.3
7.58.0-2ubuntu3.5
7.58.0-2ubuntu3.6
7.58.0-2ubuntu3.7
7.58.0-2ubuntu3.8
7.58.0-2ubuntu3.9
7.58.0-2ubuntu3.10
7.58.0-2ubuntu3.12
7.58.0-2ubuntu3.13
7.58.0-2ubuntu3.14
7.58.0-2ubuntu3.15
7.58.0-2ubuntu3.16
7.58.0-2ubuntu3.17
7.58.0-2ubuntu3.18
7.58.0-2ubuntu3.19
7.58.0-2ubuntu3.20
7.58.0-2ubuntu3.21
7.58.0-2ubuntu3.22
7.58.0-2ubuntu3.23
7.58.0-2ubuntu3.24
7.58.0-2ubuntu3.24+esm1
7.58.0-2ubuntu3.24+esm2
7.58.0-2ubuntu3.24+esm3
7.58.0-2ubuntu3.24+esm4
7.58.0-2ubuntu3.24+esm5
7.58.0-2ubuntu3.24+esm7
7.58.0-2ubuntu3.24+esm8
7.58.0-2ubuntu3.24+esm9
7.58.0-2ubuntu3.24+esm10
7.58.0-2ubuntu3.24+esm11

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "curl",
            "binary_version": "7.58.0-2ubuntu3.24+esm12"
        },
        {
            "binary_name": "libcurl3-gnutls",
            "binary_version": "7.58.0-2ubuntu3.24+esm12"
        },
        {
            "binary_name": "libcurl3-nss",
            "binary_version": "7.58.0-2ubuntu3.24+esm12"
        },
        {
            "binary_name": "libcurl4",
            "binary_version": "7.58.0-2ubuntu3.24+esm12"
        }
    ],
    "priority_reason": "Upstream defined this as low severity"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8932.json"
Ubuntu:Pro:20.04:LTS
curl

Package

Name
curl
Purl
pkg:deb/ubuntu/curl?arch=source&distro=esm-infra%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
7.68.0-1ubuntu2.25+esm7

Affected versions

7.*
7.65.3-1ubuntu3
7.65.3-1ubuntu4
7.66.0-1ubuntu1
7.67.0-2ubuntu1
7.68.0-1ubuntu1
7.68.0-1ubuntu2
7.68.0-1ubuntu2.1
7.68.0-1ubuntu2.2
7.68.0-1ubuntu2.4
7.68.0-1ubuntu2.5
7.68.0-1ubuntu2.6
7.68.0-1ubuntu2.7
7.68.0-1ubuntu2.10
7.68.0-1ubuntu2.11
7.68.0-1ubuntu2.12
7.68.0-1ubuntu2.13
7.68.0-1ubuntu2.14
7.68.0-1ubuntu2.15
7.68.0-1ubuntu2.16
7.68.0-1ubuntu2.18
7.68.0-1ubuntu2.19
7.68.0-1ubuntu2.20
7.68.0-1ubuntu2.21
7.68.0-1ubuntu2.22
7.68.0-1ubuntu2.23
7.68.0-1ubuntu2.24
7.68.0-1ubuntu2.25
7.68.0-1ubuntu2.25+esm2
7.68.0-1ubuntu2.25+esm3
7.68.0-1ubuntu2.25+esm4
7.68.0-1ubuntu2.25+esm5
7.68.0-1ubuntu2.25+esm6

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "curl",
            "binary_version": "7.68.0-1ubuntu2.25+esm7"
        },
        {
            "binary_name": "libcurl3-gnutls",
            "binary_version": "7.68.0-1ubuntu2.25+esm7"
        },
        {
            "binary_name": "libcurl3-nss",
            "binary_version": "7.68.0-1ubuntu2.25+esm7"
        },
        {
            "binary_name": "libcurl4",
            "binary_version": "7.68.0-1ubuntu2.25+esm7"
        }
    ],
    "priority_reason": "Upstream defined this as low severity"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-8932.json"