UBUNTU-CVE-2026-123533

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Source
https://ubuntu.com/security/CVE-2026-123533
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123533.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-123533
Upstream
Published
2026-11-09T00:00:00Z
Modified
2026-11-10T02:50:21Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
  • 6.8 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

gix-commitgraph before 0.42.0, as used in gitoxide before 0.61.0, contains a denial of service vulnerability because its commit-graph parser does not validate parent graph positions against the declared commit count or check the EDGE chunk length for 4-byte alignment. Attackers can supply a repository containing a crafted .git/objects/info/commit-graph file to trigger panics that abort gix merge-base, gix blame, and applications embedding gix.

References

Affected packages

Ubuntu:24.04:LTS / rust-gix-commitgraph

Package

Name
rust-gix-commitgraph
Purl
pkg:deb/ubuntu/rust-gix-commitgraph?arch=source&distro=noble

Affected ranges

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

Affected versions

0.*
0.22.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "librust-gix-commitgraph-dev",
            "binary_version": "0.22.1-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123533.json"

Ubuntu:26.10 / rust-gix-commitgraph

Package

Name
rust-gix-commitgraph
Purl
pkg:deb/ubuntu/rust-gix-commitgraph?arch=source&distro=stonking

Affected ranges

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

Affected versions

0.*
0.29.0-1
0.37.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "librust-gix-commitgraph-dev",
            "binary_version": "0.37.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123533.json"

Ubuntu:26.04:LTS / rust-gix-commitgraph

Package

Name
rust-gix-commitgraph
Purl
pkg:deb/ubuntu/rust-gix-commitgraph?arch=source&distro=resolute

Affected ranges

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

Affected versions

0.*
0.25.1-1
0.29.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "librust-gix-commitgraph-dev",
            "binary_version": "0.29.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123533.json"