CVE-2025-46718 — sudo-rs
LOWCVE-2025-46718 is a low-severity (CVSS 3.3) CWE-497 vulnerability in sudo-rs. A fix is available for sudo-rs — see the affected versions and patch details below.
sudo-rs Allows Low Privilege Users to Enumerate Privileges of Others
Exploitation Status
Proof-of-concept exploit code exists
- CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
Exploitation and automatability from CISA’s SSVC triage for CVE-2025-46718.
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-2025-46718 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 377,636 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
sudo-rsReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects crates.io packages — download data is not available via public APIs for these ecosystems.
Description
Summary
Users with limited sudo privileges (e.g. execution of a single command) can list sudo privileges of other users using the -U flag. This doesn't happen with the original sudo.
PoC
The initial test has been done in a container running Ubuntu 24.04 and installing oxidizr, running sudo-rs 0.2.2.
A user (bob) has been added with only ps command executable through sudo:
root ALL=(ALL:ALL) ALL
bob ALL=(ALL:ALL) /usr/bin/ps
The user is not able to read the /etc/sudoers file and running sudo -l -Uroot with original sudo (version 1.9.15p5) causes the following error:
Sorry, user bob is not allowed to execute 'list' as root on 43d4aed3cdbd.
The same command with sudo-rs is run without denying the execution:
User root may run the following commands on 43d4aed3cdbd:
(ALL : ALL) ALL
The same happens for other non-root users:
bob@43d4aed3cdbd:~$ sudo -l -Ufoo
User foo may run the following commands on 43d4aed3cdbd:
(ALL : ALL) /usr/bin/whoami
The behavior has been also been observed for version 0.2.5.
Impact
Users with limited sudo privileges can enumerate the sudoers file, revealing sensitive information about other users' permissions. Attackers can collect information that can be used to more targeted attacks.
Systems where users either do not have sudo privileges or have the ability to run all commands as root through sudo (the default configuration on most systems) are not affected by this advisory.
Credits
This issue was identified by Sonia Zorba.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🦀crates.io | sudo-rs | all versions | 0.2.6cargo update -p sudo-rs --precise 0.2.6 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for sudo-rs, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update sudo-rs to 0.2.6 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-46718 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-2025-46718 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2025-46718. 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-2025-46718 in your dependencies?
O3 Security finds CVE-2025-46718 across crates.io dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.