Your RSA-2048 keys break in 2030. Find every one of them before attackers do.
🦀
🦀 crates.io
Not in CISA KEV
HIGH severity

CVE-2020-35882 — rocket

HIGH

CVE-2020-35882 is a high-severity (CVSS 8.1) CWE-362 vulnerability in rocket. 1 public exploit reference exists, so weaponization risk is real. A fix is available for rocket — see the affected versions and patch details below.

Data races in rocket

Also known asGHSA-8q2v-67v7-6vc6RUSTSEC-2020-0028
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Oct 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.0%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs61th percentile — riskier than 61% of all scored CVEsHighest risk
0.00%0.49%0.98%1.47%0.3%1.0%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2020-35882 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,738 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected
🦀rocket

Real-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

The affected version of rocket contains a Clone trait implementation of LocalRequest that reuses the pointer to inner Request object. This causes data race in rare combinations of APIs if the original and the cloned objects are modified at the same time.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🦀crates.iorocket≥ 0.4.0&&< 0.4.50.4.5cargo update -p rocket --precise 0.4.5

Affected Products

1 product · 1 configurations
Application
rocketrocket
≥ 0.4.0 && < 0.4.5
range
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

An issue was discovered in the rocket crate before 0.4.5 for Rust. Local…

rustsec.orgNVDJan 2021

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for rocket, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update rocket to 0.4.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-35882 is resolved across your whole dependency graph.

  3. 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.

Frequently Asked Questions

The affected version of rocket contains a Clone trait implementation of LocalRequest that reuses the pointer to inner Request object. This causes data race in rare combinations of APIs if the original and the cloned objects are modified at the same time.
O3 Security · Impact-Aware SCA

Is CVE-2020-35882 in your dependencies?

Find it across crates.io, including transitive dependencies.

Scan my dependencies How O3 SCA works
CVE-2020-35882: rocket — Fixed in 0.4.5