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Not in CISA KEV
MEDIUM severity

CVE-2020-24025

MEDIUMFix: sass/node-sass#567

CVE-2020-24025 is a medium-severity (CVSS 5.3) CWE-295 vulnerability in node-sass. O3 Security confirms whether CVE-2020-24025 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Improper Certificate Validation in node-sass

Also known asGHSA-r8f7-9pfq-mjmv
Published
Jan 11, 2021
Updated
Aug 14, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Aug 14, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, a proxy for how much of the ecosystem is exposed.

node-sassnpm
883Kdownloads / week

Description

Certificate validation in node-sass 2.0.0 to 4.14.1 is disabled when requesting binaries even if the user is not specifying an alternative download path.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmnode-sass2.0.0&&< 7.0.07.0.0

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for node-sass. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update node-sass to 7.0.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-24025 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.

  4. How O3 protects you

    O3 pinpoints whether CVE-2020-24025 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to CVE-2020-24025. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Certificate validation in node-sass 2.0.0 to 4.14.1 is disabled when requesting binaries even if the user is not specifying an alternative download path.
O3 Security · Impact-Aware SCA

Is CVE-2020-24025 in your dependencies?

O3 detects CVE-2020-24025 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

CVE-2020-24025: Improper Certificate… | O3 Security