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CRITICAL severity

CVE-2020-35885 — alpm-rs

CRITICAL

CVE-2020-35885 is a critical-severity (CVSS 9.8) CWE-415 vulnerability in alpm-rs. No vendor fix is recorded yet; mitigation options are listed below.

Double free in alpm-rs

Also known asRUSTSEC-2020-0032
Published
Updated
Affected
1 pkg
Patched
See advisory
Exploits
None indexed
Exploitation data as of Oct 8, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.5%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs74th percentile — riskier than 74% of all scored CVEsHighest risk
0.00%0.68%1.36%2.03%0.4%1.5%Apr 26Aug 26Oct 26

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

How urgent is this, really

CVE-2020-35885 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,987 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
🦀alpm-rs

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

An issue was discovered in the alpm-rs crate through 2020-08-20 for Rust. StrcCtx performs improper memory deallocation.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
🦀crates.ioalpm-rsall versionsNo fix

Affected Products

1 product · 1 configurations
Application
alpm-rsalpm-rs_project
≤ 2020-08-20
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Remediation status

    No patched version of alpm-rs has shipped for CVE-2020-35885 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.

  3. Mitigate without a patch

    Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

An issue was discovered in the alpm-rs crate through 2020-08-20 for Rust. StrcCtx performs improper memory deallocation.
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CVE-2020-35885: alpm-rs (Critical 9.8)