GHSA-98cv-wqjx-wx8f — sudo-rs
LOWGHSA-98cv-wqjx-wx8f 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 Discover the Existence of Files in Inaccessible Folders
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 GHSA-98cv-wqjx-wx8f.
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
GHSA-98cv-wqjx-wx8f 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 377,333 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 no (or very limited) sudo privileges can determine whether files exists in folders that they otherwise cannot access using sudo --list <pathname>.
PoC
As root:
# mkdir /tmp/foo
# chmod a-rwx /tmp/foo
# touch /tmp/foo/secret_file
As a user without any (or limited) sudo rights:
$ sudo --list /tmp/foo/nonexistent_file
sudo-rs: '/tmp/foo/nonexistent_file': command not found
$ $ sudo --list /tmp/foo/secret_file
sudo-rs: Sorry, user eve may not run sudo on host.
I.e. the user can distinguish whether files exist.
Related
Original sudo (vulnerable version tested by us: 1.9.15p5) exhibited similar behaviour for files with the executable bit set.
Impact
Users with local access to a machine can discover the existence/non-existence of certain files, revealing potentially sensitive information in the file names. This information can also be used in conjunction with other attacks.
Credits
This issue was identified by sudo-rs developer Marc Schoolderman
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 GHSA-98cv-wqjx-wx8f 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 GHSA-98cv-wqjx-wx8f can be triaged on real exposure rather than presence alone.
Tailored to GHSA-98cv-wqjx-wx8f. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-98cv-wqjx-wx8f in your dependencies?
O3 Security finds GHSA-98cv-wqjx-wx8f across crates.io dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.