NIST deprecates RSA-2048 from 2030. Find every one of them before attackers do.
📦
📦 npm
Not in CISA KEV
MEDIUM severity

CVE-2021-4260 — oils

MEDIUMFix: mannyvergel/oils-js@fad8fba

CVE-2021-4260 is a medium-severity (CVSS 6.1) Open Redirect vulnerability in oils. A fix is available for oils — see the affected versions and patch details below.

Oils JS vulnerable to Open Redirect

Also known asGHSA-v279-v2xm-whq9
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Oct 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2021-4260.

EPSS Exploitation Probability

via FIRST.org ↗
0.4%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs31th percentile — riskier than 31% of all scored CVEsHighest risk
0.00%0.30%0.59%0.89%0.2%0.4%Apr 26Aug 26Oct 26

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

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

0other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
oilsnpm
480downloads / week

Description

A vulnerability was found in oils-js. It has been declared as critical. This vulnerability affects unknown code of the file core/Web.js. The manipulation leads to open redirect. The attack can be initiated remotely. The name of the patch is fad8fbae824a7d367dacb90d56cb02c5cb999d42. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-216268.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmoilsall versions8.0.0npm install oils@8.0.0

Affected Products

1 product · 1 configurations
Application
oils-jsoils-js_project
< 2021-03-23
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 oils, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update oils to 8.0.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2021-4260 is resolved across your whole dependency graph.

  3. Workarounds

    Stop reflecting attacker-controlled destinations: resolve every redirect target against an allowlist of paths or hosts you own, prefer a server-side key over a full URL in the request, and reject absolute URLs entirely where the flow only ever needs a relative one.

Frequently Asked Questions

A vulnerability was found in oils-js. It has been declared as critical. This vulnerability affects unknown code of the file core/Web.js. The manipulation leads to open redirect. The attack can be initiated remotely. The name of the patch is fad8fbae824a7d367dacb90d56cb02c5cb999d42. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-216268.
O3 Security · Impact-Aware SCA

Is CVE-2021-4260 in your dependencies?

Find it across npm, including transitive dependencies.

Scan my dependencies How O3 SCA works
CVE-2021-4260: oils Open Redirect — Fixed in 8.0.0