CVE-2026-44798 is a high-severity (CVSS 7.1) CWE-471 vulnerability in nautobot. A fix is available for nautobot — see the affected versions and patch details below.
Nautobot: GitRepository.current_head field should not be writable through REST API
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2026-44798.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
CVE-2026-44798 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 378,567 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
nautobot🐍nautobotReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.
Description
Impact
A user with access to add/change a GitRepository record could use the REST API to directly set the current_head field on the record, which was not intended to be user-editable. Doing so could cause Nautobot's local clone(s) of the relevant repository to checkout a commit other than the latest commit on the specified branch (resulting in misleading state), or potentially to be unable to make use of the repository at all (until manually remediated) due to the current_head pointing to a nonexistent commit hash or malformed value.
Patches
The issue has been remediated in Nautobot v2.4.33 and 3.1.2.
Workarounds
Note that many of the same end-result symptoms could be caused by a user with the same level of access simply changing the branch or remote_url of a GitRepository rather than crafting the current_head. Administrators are encouraged to carefully review which users are granted permissions to create and modify GitRepository records.
References
- 2.4.33 (<a href="https://github.com/nautobot/nautobot/commit/9deddfc91ad9260ad17b5e20084e9e2d15be3609">patch</a>)
- 3.1.2 (<a href="https://github.com/nautobot/nautobot/commit/c46f97040b2bde4320be36b23577f19a8bcbd8c3">patch</a>)
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | nautobot | ≥ 3.0.0a2&&< 3.1.2 | 3.1.2pip install --upgrade 'nautobot==3.1.2' |
| 🐍PyPI | nautobot | all versions | 2.4.33pip install --upgrade 'nautobot==2.4.33' |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for nautobot, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update nautobot to 3.1.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-44798 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2026-44798 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2026-44798. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2026-44798 in your dependencies?
O3 Security finds CVE-2026-44798 across PyPI dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.