RUSTSEC-2026-0028
`tracing_checks` was removed from crates.io for transitively including malicious code
This is part of an ongoing campaign to attempt to typosquat crates in an attempt to exfiltrate Polymarket credentials.
The malicious crate had 1 version published on 2026-02-26 approximately 9 hours
before removal and had no evidence of actual usage, both in terms of downloads
and dependents. It did not include the malware payload itself; this was instead
delivered via the tracings crate, which has received a separate advisory.
Thanks to Marko Ćupić for finding and reporting this to the Rust security response working group, and to Emily Albini for co-ordinating with the crates.io team.
The crates.io team advises anyone developing with Polymarket to review dependencies carefully. We are investigating ways to mitigate this attacker who appears to be very motivated to steal Polymarket credentials.
What each source reports
OSVNo score
`tracing_checks` was removed from crates.io for transitively including malicious code
This is part of an ongoing campaign to attempt to typosquat crates in an attempt to exfiltrate Polymarket credentials.
The malicious crate had 1 version published on 2026-02-26 approximately 9 hours
before removal and had no evidence of actual usage, both in terms of downloads
and dependents. It did not include the malware payload itself; this was instead
delivered via the tracings crate, which has received a separate advisory.
Thanks to Marko Ćupić for finding and reporting this to the Rust security response working group, and to Emily Albini for co-ordinating with the crates.io team.
The crates.io team advises anyone developing with Polymarket to review dependencies carefully. We are investigating ways to mitigate this attacker who appears to be very motivated to steal Polymarket credentials.
- Record
RUSTSEC-2026-0028- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
tracing_checkscrates.io | 0.0.0-0 and later | None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
RUSTSEC-2026-0028 is a vulnerability with no CVSS score yet in tracing_checks, published February 26, 2026. No source lists public exploit code. No source names a fixed version.