UBUNTU-CVE-2026-75805

Source
https://ubuntu.com/security/CVE-2026-75805
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75805.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-75805
Upstream
Downstream
Related
Published
2026-09-29T00:00:00Z
Modified
2026-10-17T13:01:05Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS#10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response. Impact summary: The NULL pointer dereference happens on a read which leads to a crash and a Denial of Service for the affected client application. CWE: CWE-476: NULL-pointer dereference Description: A CMP client revoking a certificate has to tell the server which certificate to revoke, and may do so by supplying a PKCS#10 CSR instead of the certificate itself or its issuer name and serial number. This is 'openssl cmp -cmd rr -csr ' on the command line, or OSSL_CMP_exec_RR_ses() with the certificate supplied via OSSL_CMP_CTX_set1_p10CSR() through the API. A CSR does not contain the issuer name and serial number of the certificate, so the client does not send them. A server may optionally name the certificate it revoked in its response, and the client then compares that name against what it sent. Having sent neither an issuer name nor a serial number, it has nothing to compare against, and a server returning a specially crafted name causes the client to read from a NULL pointer and crash. The revocation response is checked for valid message protection before the affected code is reached, so an attacker must be a malicious or compromised CMP server, or a man-in-the-middle in possession of the secret used for message protection. Clients that identify the certificate to be revoked by a certificate or by issuer and serial number rather than by a PKCS#10 CSR are not affected. FIPS impact: no No FIPS modules are affected by this issue, as the CMP protocol implementation is outside the OpenSSL FIPS module boundary.

References

Affected packages

Ubuntu:22.04:LTS
openssl

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.0.2-0ubuntu1.30

Affected versions

1.*
1.1.1l-1ubuntu1
3.*
3.0.0-1ubuntu1
3.0.1-0ubuntu1
3.0.2-0ubuntu1
3.0.2-0ubuntu1.1
3.0.2-0ubuntu1.2
3.0.2-0ubuntu1.4
3.0.2-0ubuntu1.5
3.0.2-0ubuntu1.6
3.0.2-0ubuntu1.7
3.0.2-0ubuntu1.8
3.0.2-0ubuntu1.9
3.0.2-0ubuntu1.10
3.0.2-0ubuntu1.12
3.0.2-0ubuntu1.13
3.0.2-0ubuntu1.14
3.0.2-0ubuntu1.15
3.0.2-0ubuntu1.16
3.0.2-0ubuntu1.17
3.0.2-0ubuntu1.18
3.0.2-0ubuntu1.19
3.0.2-0ubuntu1.20
3.0.2-0ubuntu1.21
3.0.2-0ubuntu1.23
3.0.2-0ubuntu1.25
3.0.2-0ubuntu1.26
3.0.2-0ubuntu1.29

Ecosystem specific

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "libssl3",
            "binary_version":  "3.0.2-0ubuntu1.30"
        },
        {
            "binary_name":  "openssl",
            "binary_version":  "3.0.2-0ubuntu1.30"
        }
    ],
    "priority_reason":  "OpenSSL developers have rated this issue as being low severity"
}

Database specific

source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75805.json"
Ubuntu:24.04:LTS
edk2

Package

Name
edk2
Purl
pkg:deb/ubuntu/edk2?arch=source&distro=noble

Affected ranges

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

Affected versions

2023.*
2023.05-2
2023.11-2
2023.11-3
2023.11-4
2023.11-5
2023.11-6
2023.11-8
2024.*
2024.02-1
2024.02-2
2024.02-2ubuntu0.1
2024.02-2ubuntu0.3
2024.02-2ubuntu0.4
2024.02-2ubuntu0.5
2024.02-2ubuntu0.6
2024.02-2ubuntu0.7
2024.02-2ubuntu0.8
2024.02-2ubuntu0.9
2024.02-2ubuntu0.10

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "efi-shell-aa64",
            "binary_version":  "2024.02-2ubuntu0.10"
        },
        {
            "binary_name":  "efi-shell-arm",
            "binary_version":  "2024.02-2ubuntu0.10"
        },
        {
            "binary_name":  "efi-shell-ia32",
            "binary_version":  "2024.02-2ubuntu0.10"
        },
        {
            "binary_name":  "efi-shell-riscv64",
            "binary_version":  "2024.02-2ubuntu0.10"
        },
        {
            "binary_name":  "efi-shell-x64",
            "binary_version":  "2024.02-2ubuntu0.10"
        },
        {
            "binary_name":  "ovmf",
            "binary_version":  "2024.02-2ubuntu0.10"
        },
        {
            "binary_name":  "ovmf-ia32",
            "binary_version":  "2024.02-2ubuntu0.10"
        },
        {
            "binary_name":  "ovmf-legacy",
            "binary_version":  "2024.02-2ubuntu0.10"
        },
        {
            "binary_name":  "qemu-efi-aarch64",
            "binary_version":  "2024.02-2ubuntu0.10"
        },
        {
            "binary_name":  "qemu-efi-arm",
            "binary_version":  "2024.02-2ubuntu0.10"
        },
        {
            "binary_name":  "qemu-efi-riscv64",
            "binary_version":  "2024.02-2ubuntu0.10"
        }
    ],
    "priority_reason":  "OpenSSL developers have rated this issue as being low severity"
}

Database specific

source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75805.json"
openssl

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.0.13-0ubuntu3.16

Affected versions

3.*
3.0.10-1ubuntu2
3.0.10-1ubuntu2.1
3.0.10-1ubuntu3
3.0.10-1ubuntu4
3.0.13-0ubuntu2
3.0.13-0ubuntu3
3.0.13-0ubuntu3.1
3.0.13-0ubuntu3.2
3.0.13-0ubuntu3.3
3.0.13-0ubuntu3.4
3.0.13-0ubuntu3.5
3.0.13-0ubuntu3.6
3.0.13-0ubuntu3.7
3.0.13-0ubuntu3.9
3.0.13-0ubuntu3.11
3.0.13-0ubuntu3.12
3.0.13-0ubuntu3.15

Ecosystem specific

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "libssl3t64",
            "binary_version":  "3.0.13-0ubuntu3.16"
        },
        {
            "binary_name":  "openssl",
            "binary_version":  "3.0.13-0ubuntu3.16"
        }
    ],
    "priority_reason":  "OpenSSL developers have rated this issue as being low severity"
}

Database specific

source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75805.json"
Ubuntu:26.04:LTS
edk2

Package

Name
edk2
Purl
pkg:deb/ubuntu/edk2?arch=source&distro=resolute

Affected ranges

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

Affected versions

2025.*
2025.02-8ubuntu3
2025.11-3ubuntu6
2025.11-3ubuntu7
2025.11-3ubuntu7.2
2025.11-3ubuntu7.3

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "efi-shell-aa64",
            "binary_version":  "2025.11-3ubuntu7.3"
        },
        {
            "binary_name":  "efi-shell-loongarch64",
            "binary_version":  "2025.11-3ubuntu7.3"
        },
        {
            "binary_name":  "efi-shell-riscv64",
            "binary_version":  "2025.11-3ubuntu7.3"
        },
        {
            "binary_name":  "efi-shell-x64",
            "binary_version":  "2025.11-3ubuntu7.3"
        },
        {
            "binary_name":  "ovmf",
            "binary_version":  "2025.11-3ubuntu7.3"
        },
        {
            "binary_name":  "ovmf-amdsev",
            "binary_version":  "2025.11-3ubuntu7.3"
        },
        {
            "binary_name":  "ovmf-generic",
            "binary_version":  "2025.11-3ubuntu7.3"
        },
        {
            "binary_name":  "ovmf-inteltdx",
            "binary_version":  "2025.11-3ubuntu7.3"
        },
        {
            "binary_name":  "ovmf-legacy",
            "binary_version":  "2025.11-3ubuntu7.3"
        },
        {
            "binary_name":  "qemu-efi-aarch64",
            "binary_version":  "2025.11-3ubuntu7.3"
        },
        {
            "binary_name":  "qemu-efi-loongarch64",
            "binary_version":  "2025.11-3ubuntu7.3"
        },
        {
            "binary_name":  "qemu-efi-riscv64",
            "binary_version":  "2025.11-3ubuntu7.3"
        }
    ],
    "priority_reason":  "OpenSSL developers have rated this issue as being low severity"
}

Database specific

source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75805.json"
edk2-hwe

Package

Name
edk2-hwe
Purl
pkg:deb/ubuntu/edk2-hwe?arch=source&distro=resolute

Affected ranges

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

Affected versions

2025.*
2025.11-3ubuntu6
2025.11-3ubuntu8
2025.11-3ubuntu8.2

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "efi-shell-aa64-hwe",
            "binary_version":  "2025.11-3ubuntu8.2"
        },
        {
            "binary_name":  "efi-shell-loongarch64-hwe",
            "binary_version":  "2025.11-3ubuntu8.2"
        },
        {
            "binary_name":  "efi-shell-riscv64-hwe",
            "binary_version":  "2025.11-3ubuntu8.2"
        },
        {
            "binary_name":  "efi-shell-x64-hwe",
            "binary_version":  "2025.11-3ubuntu8.2"
        },
        {
            "binary_name":  "ovmf-amdsev-hwe",
            "binary_version":  "2025.11-3ubuntu8.2"
        },
        {
            "binary_name":  "ovmf-generic-hwe",
            "binary_version":  "2025.11-3ubuntu8.2"
        },
        {
            "binary_name":  "ovmf-hwe",
            "binary_version":  "2025.11-3ubuntu8.2"
        },
        {
            "binary_name":  "ovmf-inteltdx-hwe",
            "binary_version":  "2025.11-3ubuntu8.2"
        },
        {
            "binary_name":  "ovmf-legacy-hwe",
            "binary_version":  "2025.11-3ubuntu8.2"
        },
        {
            "binary_name":  "qemu-efi-aarch64-hwe",
            "binary_version":  "2025.11-3ubuntu8.2"
        },
        {
            "binary_name":  "qemu-efi-loongarch64-hwe",
            "binary_version":  "2025.11-3ubuntu8.2"
        },
        {
            "binary_name":  "qemu-efi-riscv64-hwe",
            "binary_version":  "2025.11-3ubuntu8.2"
        }
    ],
    "priority_reason":  "OpenSSL developers have rated this issue as being low severity"
}

Database specific

source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75805.json"
openssl

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.5.5-1ubuntu3.6

Affected versions

3.*
3.5.3-1ubuntu2
3.5.5-1ubuntu1
3.5.5-1ubuntu3
3.5.5-1ubuntu3.2
3.5.5-1ubuntu3.3
3.5.5-1ubuntu3.4
3.5.5-1ubuntu3.5

Ecosystem specific

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "libssl3t64",
            "binary_version":  "3.5.5-1ubuntu3.6"
        },
        {
            "binary_name":  "openssl",
            "binary_version":  "3.5.5-1ubuntu3.6"
        },
        {
            "binary_name":  "openssl-provider-legacy",
            "binary_version":  "3.5.5-1ubuntu3.6"
        }
    ],
    "priority_reason":  "OpenSSL developers have rated this issue as being low severity"
}

Database specific

source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75805.json"
Ubuntu:26.10
edk2

Package

Name
edk2
Purl
pkg:deb/ubuntu/edk2?arch=source&distro=stonking

Affected ranges

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

Affected versions

2025.*
2025.11-3ubuntu7
2025.11-3ubuntu8
2026.*
2026.05-2ubuntu1
2026.05-2ubuntu2
2026.05-2ubuntu3

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "efi-shell-aa64",
            "binary_version":  "2026.05-2ubuntu3"
        },
        {
            "binary_name":  "efi-shell-loongarch64",
            "binary_version":  "2026.05-2ubuntu3"
        },
        {
            "binary_name":  "efi-shell-riscv64",
            "binary_version":  "2026.05-2ubuntu3"
        },
        {
            "binary_name":  "efi-shell-x64",
            "binary_version":  "2026.05-2ubuntu3"
        },
        {
            "binary_name":  "ovmf",
            "binary_version":  "2026.05-2ubuntu3"
        },
        {
            "binary_name":  "ovmf-amdsev",
            "binary_version":  "2026.05-2ubuntu3"
        },
        {
            "binary_name":  "ovmf-generic",
            "binary_version":  "2026.05-2ubuntu3"
        },
        {
            "binary_name":  "ovmf-inteltdx",
            "binary_version":  "2026.05-2ubuntu3"
        },
        {
            "binary_name":  "ovmf-legacy",
            "binary_version":  "2026.05-2ubuntu3"
        },
        {
            "binary_name":  "qemu-efi-aarch64",
            "binary_version":  "2026.05-2ubuntu3"
        },
        {
            "binary_name":  "qemu-efi-loongarch64",
            "binary_version":  "2026.05-2ubuntu3"
        },
        {
            "binary_name":  "qemu-efi-riscv64",
            "binary_version":  "2026.05-2ubuntu3"
        }
    ],
    "priority_reason":  "OpenSSL developers have rated this issue as being low severity"
}

Database specific

source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75805.json"
edk2-hwe

Package

Name
edk2-hwe
Purl
pkg:deb/ubuntu/edk2-hwe?arch=source&distro=stonking

Affected ranges

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

Affected versions

2025.*
2025.11-3ubuntu8
2025.11-3ubuntu9
2026.*
2026.05-2ubuntu1
2026.05-2ubuntu2
2026.05-2ubuntu3

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "efi-shell-aa64-hwe",
            "binary_version":  "2026.05-2ubuntu3"
        },
        {
            "binary_name":  "efi-shell-loongarch64-hwe",
            "binary_version":  "2026.05-2ubuntu3"
        },
        {
            "binary_name":  "efi-shell-riscv64-hwe",
            "binary_version":  "2026.05-2ubuntu3"
        },
        {
            "binary_name":  "efi-shell-x64-hwe",
            "binary_version":  "2026.05-2ubuntu3"
        },
        {
            "binary_name":  "ovmf-amdsev-hwe",
            "binary_version":  "2026.05-2ubuntu3"
        },
        {
            "binary_name":  "ovmf-generic-hwe",
            "binary_version":  "2026.05-2ubuntu3"
        },
        {
            "binary_name":  "ovmf-hwe",
            "binary_version":  "2026.05-2ubuntu3"
        },
        {
            "binary_name":  "ovmf-inteltdx-hwe",
            "binary_version":  "2026.05-2ubuntu3"
        },
        {
            "binary_name":  "ovmf-legacy-hwe",
            "binary_version":  "2026.05-2ubuntu3"
        },
        {
            "binary_name":  "qemu-efi-aarch64-hwe",
            "binary_version":  "2026.05-2ubuntu3"
        },
        {
            "binary_name":  "qemu-efi-loongarch64-hwe",
            "binary_version":  "2026.05-2ubuntu3"
        },
        {
            "binary_name":  "qemu-efi-riscv64-hwe",
            "binary_version":  "2026.05-2ubuntu3"
        }
    ],
    "priority_reason":  "OpenSSL developers have rated this issue as being low severity"
}

Database specific

source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75805.json"
Ubuntu:Pro:22.04:LTS
nodejs

Package

Name
nodejs
Purl
pkg:deb/ubuntu/nodejs?arch=source&distro=esm-apps%2Fjammy

Affected ranges

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

Affected versions

12.*
12.22.5~dfsg-5ubuntu1
12.22.7~dfsg-2ubuntu1
12.22.7~dfsg-2ubuntu3
12.22.9~dfsg-1ubuntu2
12.22.9~dfsg-1ubuntu3
12.22.9~dfsg-1ubuntu3.1
12.22.9~dfsg-1ubuntu3.2
12.22.9~dfsg-1ubuntu3.3
12.22.9~dfsg-1ubuntu3.4
12.22.9~dfsg-1ubuntu3.5
12.22.9~dfsg-1ubuntu3.6
12.22.9~dfsg-1ubuntu3.6+esm2

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "libnode72",
            "binary_version":  "12.22.9~dfsg-1ubuntu3.6+esm2"
        },
        {
            "binary_name":  "nodejs",
            "binary_version":  "12.22.9~dfsg-1ubuntu3.6+esm2"
        }
    ],
    "priority_reason":  "OpenSSL developers have rated this issue as being low severity"
}

Database specific

source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75805.json"
Ubuntu:Pro:FIPS-preview:22.04:LTS
openssl

Package

Name
openssl
Purl
pkg:deb/ubuntu/openssl?arch=source&distro=fips-preview%2Fjammy

Affected ranges

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

Affected versions

3.*
3.0.2-0ubuntu1.10+Fips1
3.0.2-0ubuntu1.12+Fips1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "libssl3",
            "binary_version":  "3.0.2-0ubuntu1.12+Fips1"
        },
        {
            "binary_name":  "openssl",
            "binary_version":  "3.0.2-0ubuntu1.12+Fips1"
        }
    ],
    "priority_reason":  "OpenSSL developers have rated this issue as being low severity"
}

Database specific

source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75805.json"
openssl-fips

Package

Name
openssl-fips
Purl
pkg:deb/ubuntu/openssl-fips?arch=source&distro=fips-preview%2Fjammy

Affected ranges

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

Affected versions

3.*
3.0.5-0ubuntu0.1+Fips2.1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "openssl-fips-module-3",
            "binary_version":  "3.0.5-0ubuntu0.1+Fips2.1"
        }
    ],
    "priority_reason":  "OpenSSL developers have rated this issue as being low severity"
}

Database specific

source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75805.json"
Ubuntu:Pro:FIPS-updates:22.04:LTS
openssl

Package

Name
openssl
Purl
pkg:deb/ubuntu/openssl?arch=source&distro=fips-updates%2Fjammy

Affected ranges

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

Affected versions

3.*
3.0.2-0ubuntu1.10+Fips1
3.0.2-0ubuntu1.12+Fips1
3.0.2-0ubuntu1.14+Fips1
3.0.2-0ubuntu1.15+Fips1
3.0.2-0ubuntu1.16+Fips1
3.0.2-0ubuntu1.17+Fips1
3.0.2-0ubuntu1.18+Fips1
3.0.2-0ubuntu1.19+Fips1
3.0.2-0ubuntu1.20+Fips1
3.0.2-0ubuntu1.21+Fips1
3.0.2-0ubuntu1.23+Fips1
3.0.2-0ubuntu1.25+Fips1
3.0.2-0ubuntu1.26+Fips1
3.0.2-0ubuntu1.29+Fips1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "libssl3",
            "binary_version":  "3.0.2-0ubuntu1.29+Fips1"
        },
        {
            "binary_name":  "openssl",
            "binary_version":  "3.0.2-0ubuntu1.29+Fips1"
        }
    ],
    "priority_reason":  "OpenSSL developers have rated this issue as being low severity"
}

Database specific

source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75805.json"
openssl-fips

Package

Name
openssl-fips
Purl
pkg:deb/ubuntu/openssl-fips?arch=source&distro=fips-updates%2Fjammy

Affected ranges

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

Affected versions

3.*
3.0.5-0ubuntu0.1+Fips2.1
3.0.5-0ubuntu0.2+Fips1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "openssl-fips-module-3",
            "binary_version":  "3.0.5-0ubuntu0.2+Fips1"
        }
    ],
    "priority_reason":  "OpenSSL developers have rated this issue as being low severity"
}

Database specific

source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75805.json"
Ubuntu:Pro:FIPS-updates:24.04:LTS
openssl-fips

Package

Name
openssl-fips
Purl
pkg:deb/ubuntu/openssl-fips?arch=source&distro=fips-updates%2Fnoble

Affected ranges

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

Affected versions

3.*
3.0.13-0ubuntu3+Fips1
3.0.13-0ubuntu3.6+Fips1
3.0.13-0ubuntu3.12+Fips1
3.0.13-0ubuntu3.15+Fips1
3.0.13-0ubuntu3.15+Fips2

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "openssl-fips-module-3",
            "binary_version":  "3.0.13-0ubuntu3.15+Fips2"
        }
    ],
    "priority_reason":  "OpenSSL developers have rated this issue as being low severity"
}

Database specific

source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75805.json"