Reference page — cumulative record through Thursday, October 8, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2019-9948

CVE-2019-9948CRITICAL

n/a n/a — urllib in Python 2.x through 2.7.16 supports the local_file: scheme, which makes it easier for remote attackers to bypass protection mech…

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  H  H  N    9.1   .1184   96.0     —

AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —

TIMELINE
  Mar 23  Reserved by mitre
  Mar 23  Published (CNA: mitre)
  Oct 7   EXPLOIT PUBLISHED — CVE-2019-9948. Public exploit reference added.

CWE-22 · CNA: mitre · CVSS v3.1 · 22 references · NVD status: Modified

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
March 23, 2019	Reserved	Reserved by mitre
March 23, 2019	Published	Published (CNA: mitre)
October 7, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2019-9948. Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	n/a	—	n/a	—

Weaknesses

CWE-22

References (22)

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00092.html [Mailing List, Third Party Advisory]
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00050.html [Mailing List, Third Party Advisory]
http://packetstormsecurity.com/files/154927/Slackware-Security-Advisory-python-Updates.html [Third Party Advisory, VDB Entry]
http://www.securityfocus.com/bid/107549 [Third Party Advisory, VDB Entry]
https://access.redhat.com/errata/RHSA-2019:1700 [Third Party Advisory]
https://access.redhat.com/errata/RHSA-2019:2030 [Third Party Advisory]
https://access.redhat.com/errata/RHSA-2019:3335 [Third Party Advisory]
https://access.redhat.com/errata/RHSA-2019:3520 [Third Party Advisory]
https://bugs.python.org/issue35907 [Exploit, Issue Tracking, Vendor Advisory]
https://github.com/python/cpython/pull/11842 [Patch, Third Party Advisory]
https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E
https://lists.debian.org/debian-lts-announce/2019/06/msg00022.html [Mailing List, Third Party Advisory]
https://lists.debian.org/debian-lts-announce/2019/07/msg00011.html [Mailing List, Third Party Advisory]
https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html [Mailing List, Third Party Advisory]
https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html [Mailing List, Third Party Advisory]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HQEQLXLOCR3SNM3AA5RRYJFQ5AZBYJ4L/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KRYFIMISZ47NTAU3XWZUOFB7CYL62KES/
https://seclists.org/bugtraq/2019/Oct/29 [Mailing List, Third Party Advisory]
https://security.gentoo.org/glsa/202003-26 [Third Party Advisory]
https://security.netapp.com/advisory/ntap-20190404-0004/ [Third Party Advisory]
https://usn.ubuntu.com/4127-1/ [Third Party Advisory]
https://usn.ubuntu.com/4127-2/ [Third Party Advisory]

Authoritative record: CVE-2019-9948 at cve.org

Weaknesses: CWE-22

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2019-9948 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Thursday, October 8, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.