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October 14, 2026

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CVE-2019-9948NVD

Vulnerability Summary

urllib in Python 2.x through 2.7.16 supports the local_file: scheme, which makes it easier for remote attackers to bypass protection mechanisms that blacklist file: URIs, as demonstrated by triggering a urllib.urlopen('local_file:///etc/passwd') call.
Severity Level
CRITICAL(9.1)
Published Date
Mar 23, 2019
Last Modified
Oct 14, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
11.84%Probability
Root Weakness (CWE)
CWE-22: Path Traversal ↗
The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory.
CVSS v3.1 Base Metrics — Score 9.1 (CRITICAL)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone

Affected & Patched Versions

Affected Versions
  • Python Python >= 2.0 and < 2.7.17
  • Python Python >= 3.5.0 and < 3.5.8
  • Python Python >= 3.6.0 and < 3.6.9
  • Python Python >= 3.7.0 and < 3.7.4
  • Opensuse Leap
  • Debian Debian Linux
  • Fedoraproject Fedora
  • Canonical Ubuntu Linux
  • Redhat Enterprise Linux Desktop
  • Redhat Enterprise Linux Eus
  • Redhat Enterprise Linux Server
  • Redhat Enterprise Linux Server Eus
  • Redhat Enterprise Linux Tus
  • Redhat Enterprise Linux Workstation
Patched Versions
  • Python Python 2.7.17
  • Python Python 3.5.8
  • Python Python 3.6.9
  • Python Python 3.7.4
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🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.

External References